tag:blogger.com,1999:blog-74775935452300877532024-03-17T02:52:51.727+08:00Practice不斷的練習s00639http://www.blogger.com/profile/08382086616742866311noreply@blogger.comBlogger587125tag:blogger.com,1999:blog-7477593545230087753.post-44280755140776893152024-03-13T22:34:00.004+08:002024-03-14T07:39:17.653+08:00嘗試在牛頓鏡上安裝濾鏡快拆裝置<p>針對發射星雲的窄頻天文濾鏡對目視觀星來說簡直是天賜恩物,應該説是不可或缺的器材之一了。不過實務經驗裏通常會碰到兩個困擾,一個是濾鏡本身的反光影響觀測,另一個是更換濾鏡時的不便。折射鏡或折返鏡 因為會用到天頂鏡,反光影響這個問題可以克服;但 拆裝不便 這個困擾就沒辦法了,因為一定要拆下天頂鏡… 如果是重型目鏡或雙目視裝置的話還要先卸下來再拆天頂鏡,以免摔到,如此拆拆裝裝的頗耗時間;使用牛頓鏡時因為沒天頂鏡,因此濾鏡裝在目鏡屁股,更換濾鏡時就更不方便了,連換目鏡都要拆裝濾鏡。有種需要 快速拆裝濾鏡 來辨識超小行星狀星雲的技巧,就是盡快 來回拆裝濾鏡 觀察視野裏哪些東西變暗,哪些反而變亮,因而分辨出目標的方法;如果每次拆裝濾鏡都要十幾秒,腦海裏的畫面都忘了的話,那麼這技巧的功效就大打折扣了。</p><p><br /></p><p>市面上找得到的解決方案當然有,連我都想得到廠商一定也想得到。Baader 就有可抽換的濾鏡抽屜,目視可用攝影也能用;Borg 也有,不過 Borg 這個看起來是攝影用的設計。松本先生幫我製作的FC-76 雙筒就把 Borg 的這個整合進筒身,目視也能用了:</p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiWx3p_Mn92LLpobSUKQ-sD5gxAptCSGKiGHaGaOqRsMj6CzXsbyoyr7BTzNMyOSoBwPDHvtWkyPidaqCyGZVTXslXv59ljOZvVMmj8J5hbrohugJJNAM1uaHb_2E3NQErgWCBJPgkzPeioOzWuGkA2-ZSPe03wMqbfuFK6freRwsxCJCPtbdRrsaBKJJY/s4032/IMG_3133.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="4032" data-original-width="3024" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiWx3p_Mn92LLpobSUKQ-sD5gxAptCSGKiGHaGaOqRsMj6CzXsbyoyr7BTzNMyOSoBwPDHvtWkyPidaqCyGZVTXslXv59ljOZvVMmj8J5hbrohugJJNAM1uaHb_2E3NQErgWCBJPgkzPeioOzWuGkA2-ZSPe03wMqbfuFK6freRwsxCJCPtbdRrsaBKJJY/w300-h400/IMG_3133.HEIC" width="300" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgipkA558DFPTtmzq7vwU5j2w0cyty6HIgtPPwIMdRcgrq_UhfkpyceNoTR9W-e73EIvUMgE_n0oe0MZp6lB6Id5aOXJgdfKssMVwGiJWgHZfpMf-q3bZ5qW349y3tlM-R0dty_lEdDn-X9w_4sGK0cI9GDUJu5nuyY253RDf_5_CrA0Xcgf54n0mQy1z8/s4032/IMG_3134.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="4032" data-original-width="3024" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgipkA558DFPTtmzq7vwU5j2w0cyty6HIgtPPwIMdRcgrq_UhfkpyceNoTR9W-e73EIvUMgE_n0oe0MZp6lB6Id5aOXJgdfKssMVwGiJWgHZfpMf-q3bZ5qW349y3tlM-R0dty_lEdDn-X9w_4sGK0cI9GDUJu5nuyY253RDf_5_CrA0Xcgf54n0mQy1z8/w300-h400/IMG_3134.HEIC" width="300" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiKeboB3uigPIiAJh0m6nHhlUzAIG2s4XeVIzcgrMs1kYgEjrxEpB21XVES0xxCoCz9jxrRtDJzndUu13j_kuV-BsaQTTyhb2dC_rLSQF6cYrabuD68ekh3H0I-GR3jDFMoAsJ-UQMbDKJxwSjYrmcfBCGQwtj8dNGA9POKzoke8SZrXf1wz3RocwKeUc8/s3021/IMG_3173.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3021" data-original-width="3021" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiKeboB3uigPIiAJh0m6nHhlUzAIG2s4XeVIzcgrMs1kYgEjrxEpB21XVES0xxCoCz9jxrRtDJzndUu13j_kuV-BsaQTTyhb2dC_rLSQF6cYrabuD68ekh3H0I-GR3jDFMoAsJ-UQMbDKJxwSjYrmcfBCGQwtj8dNGA9POKzoke8SZrXf1wz3RocwKeUc8/w400-h400/IMG_3173.HEIC" width="400" /></a></div><br /><p><br /></p><p>不幸的是我又再度拆掉以為會陪我一輩子的這組 76 雙筒去組 Borg 90FL 雙筒了,因此這組濾鏡抽屜也再度英雄無用武之地。其中一組我移去單眼用的松本對角鏡上,這組很好改:</p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiAVjkZ7Py_ePUTxoBdWssLz2FaHbcDaFsy_0S1nofoo-4jHH9vzHScHfnbL4cXQaG9gBEEPve6gSIaNTz0_KwIusMYJAyy_Le6FNEQFhcsuJ9K_e_DKoPhmD2Xr-BOeB9o6Kk1XXHmogGf8K71RoXxPFOCV0RZVXf4L2P-jPSwZRlspYOmP50Bsl7r9Uk/s4027/DSC_0032.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="4027" data-original-width="4027" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiAVjkZ7Py_ePUTxoBdWssLz2FaHbcDaFsy_0S1nofoo-4jHH9vzHScHfnbL4cXQaG9gBEEPve6gSIaNTz0_KwIusMYJAyy_Le6FNEQFhcsuJ9K_e_DKoPhmD2Xr-BOeB9o6Kk1XXHmogGf8K71RoXxPFOCV0RZVXf4L2P-jPSwZRlspYOmP50Bsl7r9Uk/w400-h400/DSC_0032.JPG" width="400" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj3YrmWQLXXWrC9837m8JQ1ttX-FR1FPPJuJFa0VFCewd5IaENfL8hlgmk0MuUd1QikXoJUgNoZNgfVZCEgwcYH1hSp0lsU4XjPcFPsLC8KDiw5X11CmB8_AThhjqYnfNJrKLlOwJU4ifKLuZst8khTMPGF_sbeTKpCnrZVk347weDQy8U1encfcoDGX9g/s4027/DSC_0029.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="4027" data-original-width="4027" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj3YrmWQLXXWrC9837m8JQ1ttX-FR1FPPJuJFa0VFCewd5IaENfL8hlgmk0MuUd1QikXoJUgNoZNgfVZCEgwcYH1hSp0lsU4XjPcFPsLC8KDiw5X11CmB8_AThhjqYnfNJrKLlOwJU4ifKLuZst8khTMPGF_sbeTKpCnrZVk347weDQy8U1encfcoDGX9g/w400-h400/DSC_0029.JPG" width="400" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjjyEFQ7UzHXEaSTPB5tDDQBJixX8hFwNhnKu4Nonoi5KaRQrg3JpKNMvin12ze2uFkXlRFzY7P4CkVZiYcJmIW_EF0ao8MYFveVI9yyDC24WE4oyOKwgsP1ZILU6zHt3quyz64vCA9tyHDq0-TEIYA0nEGIF1YMTDXb_SheFDIE6Ye4pp68EAYMSDqG20/s3898/DSC_0027.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3898" data-original-width="3898" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjjyEFQ7UzHXEaSTPB5tDDQBJixX8hFwNhnKu4Nonoi5KaRQrg3JpKNMvin12ze2uFkXlRFzY7P4CkVZiYcJmIW_EF0ao8MYFveVI9yyDC24WE4oyOKwgsP1ZILU6zHt3quyz64vCA9tyHDq0-TEIYA0nEGIF1YMTDXb_SheFDIE6Ye4pp68EAYMSDqG20/w400-h400/DSC_0027.JPG" width="400" /></a></div><br /><p><br /></p><p>另外一組我就想… 可以裝在牛頓鏡上用嗎?可以的話能裝在哪裡呢?</p><p>不可能裝在對焦座目鏡端,反射鏡的 back focus 都很有限,不可能再多個幾公分…</p><p>裝對焦座底端呢?好像也只能裝在這。抽屜有一定厚度,當對焦座全拉出時抽屜會不會跑進對焦座裡?那不就無法抽換了?當對焦座全推進時抽屜會不會太靠近次鏡而擋到光柱?尤其短焦鏡的光柱都蠻胖的⋯⋯</p><p>還有,大牛的前端開開,雜光難免,這樣的話抽屜要留一點作遮光罩嗎?要留多長?</p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgc4vQ5RDbwhPEiUoRb163BhonKY-L24lmF9AhWuOlD8JDJvnc3zEIs3TfSvyNiR7fg-SkwvV8gLBh5ucqmNrYk1nYicJIyQvp1MBILlwzeTN52VfVIiSUDdUMENFaglInZNRNsCcXb2mwfzPufoqW0vgQwNIz0NayFzUd8EbXHf5zg7gfcyYrgqvp0aLY/s1899/IMG_7186.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1899" data-original-width="1899" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgc4vQ5RDbwhPEiUoRb163BhonKY-L24lmF9AhWuOlD8JDJvnc3zEIs3TfSvyNiR7fg-SkwvV8gLBh5ucqmNrYk1nYicJIyQvp1MBILlwzeTN52VfVIiSUDdUMENFaglInZNRNsCcXb2mwfzPufoqW0vgQwNIz0NayFzUd8EbXHf5zg7gfcyYrgqvp0aLY/w400-h400/IMG_7186.HEIC" width="400" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhUk2ga0DDAArX6vlYYPwFz1RlFOe6u-DtbrLeCOR1iYB6UmdvBNskEboXmODHdhyphenhyphenHfaGdwnWOW2dpZ6oCvBhwyrGFrp9wGEOaP1NdBSr0lnWqmwYZ-baF8jV8GRh5csnwn5KFh5AXozKkNcRCjEzqPpg5irC2dmiQ5QmjJebRmv-2IgAY98qjs-mWcFsk/s1899/IMG_7187.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1898" data-original-width="1899" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhUk2ga0DDAArX6vlYYPwFz1RlFOe6u-DtbrLeCOR1iYB6UmdvBNskEboXmODHdhyphenhyphenHfaGdwnWOW2dpZ6oCvBhwyrGFrp9wGEOaP1NdBSr0lnWqmwYZ-baF8jV8GRh5csnwn5KFh5AXozKkNcRCjEzqPpg5irC2dmiQ5QmjJebRmv-2IgAY98qjs-mWcFsk/w400-h400/IMG_7187.HEIC" width="400" /></a></div><br /><p><br /></p><p><br /></p><p>想了半天,還是跟經驗豐富的廠長討論一下好了,於是有了一個版本:</p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgZvYecWyXF6H2sOpO9ASwrZ-Pw0H8fytaIBKo8Tn-LLMgiUq0bJwI9dGtD0NrjnzdyxBODcoFsBnjZKf9Rgy1maEhDhhjQogNSAE4j7q2ms-cOy1fve4megLBrbzGWXNtZgGlTZrlOtjacJMxfMgnLGNdYahZydB7DK1FGJfxiITytAa_Yu23TelKtmgM/s1899/IMG_7183.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1899" data-original-width="1899" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgZvYecWyXF6H2sOpO9ASwrZ-Pw0H8fytaIBKo8Tn-LLMgiUq0bJwI9dGtD0NrjnzdyxBODcoFsBnjZKf9Rgy1maEhDhhjQogNSAE4j7q2ms-cOy1fve4megLBrbzGWXNtZgGlTZrlOtjacJMxfMgnLGNdYahZydB7DK1FGJfxiITytAa_Yu23TelKtmgM/w400-h400/IMG_7183.HEIC" width="400" /></a></div><br /><p>抽屜本體外,上下各做一個環。因為很多距離抓不準,因此做短環來接,太長的話就拆掉環,太短的話就再弄一個環來接⋯ 這些都是 Borg 給的靈感。</p><p><br /></p><p>羽毛對焦座的尾巴是 M52 內牙,接一個短環既能當連結器也作出一點長度避免抽屜跑進對焦座 house 內:</p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEioJnRW-QMcwOXs8R8HYpvG3Rr7AaVqiZbTBUClvOejuc7hVS4RZku8oLtNRbckCgCafEGc2-XMiOJ15MshsPLTm1cSWdj9Um95mtmwY2NItojTilPpLyztXjiOwAyQwSl7zoBLEdk1XVDIpMRy-I-xgVdpl6yWuyRImcN686Omi6IV4cp9nXPv_SLMG1M/s1645/IMG_7188.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1645" data-original-width="1645" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEioJnRW-QMcwOXs8R8HYpvG3Rr7AaVqiZbTBUClvOejuc7hVS4RZku8oLtNRbckCgCafEGc2-XMiOJ15MshsPLTm1cSWdj9Um95mtmwY2NItojTilPpLyztXjiOwAyQwSl7zoBLEdk1XVDIpMRy-I-xgVdpl6yWuyRImcN686Omi6IV4cp9nXPv_SLMG1M/w400-h400/IMG_7188.HEIC" width="400" /></a></div><br /><p>接上本體:</p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh98_q-9yFGWEP5u7JZ2OSD3bqf2xIRlwKKa_VrL-k2695bY8v7JYp5pgg7Qw7M-sPvYB-j7BHA4VcG5O57O6T8IbjrrgDzDreDa_zGLZoOzTzccD4U9GhwFF5zrNNR_lZZoo__w1jlrevEtcv6OKZVxtlbc8CZ7vFkU-aF18IFjpmM-My6_nwuV4d5Kj8/s1899/IMG_7189.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1899" data-original-width="1899" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh98_q-9yFGWEP5u7JZ2OSD3bqf2xIRlwKKa_VrL-k2695bY8v7JYp5pgg7Qw7M-sPvYB-j7BHA4VcG5O57O6T8IbjrrgDzDreDa_zGLZoOzTzccD4U9GhwFF5zrNNR_lZZoo__w1jlrevEtcv6OKZVxtlbc8CZ7vFkU-aF18IFjpmM-My6_nwuV4d5Kj8/w400-h400/IMG_7189.HEIC" width="400" /></a></div><br /><p>還有一些小細節,比如説抽屜要可以旋轉,因為抽拔濾鏡時不知道哪個方向最順手,總不好在黑夜中扭著脖子在抽換吧?</p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiIWQONBA0RtBVdtru_6VcqNSLBquhWwOxWu_T-f0SV5wqTobSoqHe-2b-unXDaMtMC8h3czYGz8eX_y1clzIDSW_tqdBitth1nAAts2-xwk6L3qCpakurhSf1wNvuQCUz_DNtX8pZw6KhIhaoZ4xjpbTOcGzNKLCbSP7807JHLYO8INC2Tg1ni4M-YTmI/s1899/IMG_7190.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1899" data-original-width="1899" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiIWQONBA0RtBVdtru_6VcqNSLBquhWwOxWu_T-f0SV5wqTobSoqHe-2b-unXDaMtMC8h3czYGz8eX_y1clzIDSW_tqdBitth1nAAts2-xwk6L3qCpakurhSf1wNvuQCUz_DNtX8pZw6KhIhaoZ4xjpbTOcGzNKLCbSP7807JHLYO8INC2Tg1ni4M-YTmI/w400-h400/IMG_7190.HEIC" width="400" /></a></div><br /><p>至於 遮光環 呢?</p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgEdVVvX6c2lWMgv5YB-NQdC690XbGCLMoEDB0qePhKzkepUV5hE1RqQN-olpG5ybYnaa9qZt_eJ2X1Zf78OJNhETr4jjrNY3smIn3M0QldNwNqBL_Z3G1Z7rrL9KHFzS9h0vrRQu4-H2YM-QuM0dvjMORbwToJStguwN0PhC37uv9OLLnF28HtRUj8maA/s2193/IMG_7194.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1645" data-original-width="2193" height="300" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgEdVVvX6c2lWMgv5YB-NQdC690XbGCLMoEDB0qePhKzkepUV5hE1RqQN-olpG5ybYnaa9qZt_eJ2X1Zf78OJNhETr4jjrNY3smIn3M0QldNwNqBL_Z3G1Z7rrL9KHFzS9h0vrRQu4-H2YM-QuM0dvjMORbwToJStguwN0PhC37uv9OLLnF28HtRUj8maA/w400-h300/IMG_7194.HEIC" width="400" /></a></div><br /><p><br /></p><p>沒錯,如圖所示,實際測試後發現當對焦行程很短時 遮光環 會擋到視野,因此只能拆掉,拆掉後其實還有 10mm 的遮光啦,對焦座推到底時:</p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjSLqKCYayw1oWaTbLWqxO5AGq0Uug8qGbtxx6F_eylb8Mk7yMSxVwlQhktaOv0RwAThm2OXVezwGSYC-Lf1U4M4YCM0lSbsR8ScIsq1ZLxH3BMD23YYdzyL3Q_FindqRlgbuUlnx2Xre7W4n1ViRO6G58V9DrsO9-uvmQiBWiMUJy450ijsPxyz0qnfUM/s1899/IMG_7193.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1899" data-original-width="1899" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjSLqKCYayw1oWaTbLWqxO5AGq0Uug8qGbtxx6F_eylb8Mk7yMSxVwlQhktaOv0RwAThm2OXVezwGSYC-Lf1U4M4YCM0lSbsR8ScIsq1ZLxH3BMD23YYdzyL3Q_FindqRlgbuUlnx2Xre7W4n1ViRO6G58V9DrsO9-uvmQiBWiMUJy450ijsPxyz0qnfUM/w400-h400/IMG_7193.HEIC" width="400" /></a></div><br /><p>最後外觀多了裏面那截:</p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjBtSEnVQbEsv5BiT4wYKJj7JZDeGTgSmCwZ9IcXXLnPnzZoIaniq0-ZdRYNsxqUHD3th5wcK9SK6K7iZgmiGGDjvETBJmvYmwzrxCsceGSDuqY55oy-39SMr_9Ck3jXwbgJqxbGJnwrCK2zpVh4UccjWmsfpDVaQ_10lJVnGsEPknUhIEpnVZcsSVqtP8/s1899/IMG_7220.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1899" data-original-width="1899" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjBtSEnVQbEsv5BiT4wYKJj7JZDeGTgSmCwZ9IcXXLnPnzZoIaniq0-ZdRYNsxqUHD3th5wcK9SK6K7iZgmiGGDjvETBJmvYmwzrxCsceGSDuqY55oy-39SMr_9Ck3jXwbgJqxbGJnwrCK2zpVh4UccjWmsfpDVaQ_10lJVnGsEPknUhIEpnVZcsSVqtP8/w400-h400/IMG_7220.HEIC" width="400" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg4gnpCUjFprLPW1PwACzb2Wg_CB_P-H0F7TNdEHlpRHJvpkElii5KzLWg41hjfn6h416RklRrCMCOIRmdW107OIcTp7wAJHG4H_u9qzYo0v-oGLnuC64WRdhrSMn6nGmip8sCNlzGEI2COykMqToEVOi9AwQfWzMXrMPNkmit17u-Mick5lqGLNJHftI4/s1899/IMG_7221.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1899" data-original-width="1899" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg4gnpCUjFprLPW1PwACzb2Wg_CB_P-H0F7TNdEHlpRHJvpkElii5KzLWg41hjfn6h416RklRrCMCOIRmdW107OIcTp7wAJHG4H_u9qzYo0v-oGLnuC64WRdhrSMn6nGmip8sCNlzGEI2COykMqToEVOi9AwQfWzMXrMPNkmit17u-Mick5lqGLNJHftI4/w400-h400/IMG_7221.HEIC" width="400" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEja-sRNe52lzt-8-Gxr5hBEjCt3eUS1mACpD9287R0iMPBwl0EvH1Ep-dY0WoZtgx-bPtU57R1Q4hiMxHQp0l0fCR65spJw4xCNW35XLhxjTFJDbwY7209_XdvD9lNo9NauWroxI3nXe67um7hqu44XX5xKrsFJpYm1BF3F2ABn23-DP2NIsL_9hoew_Fs/s1899/IMG_7222.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1899" data-original-width="1899" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEja-sRNe52lzt-8-Gxr5hBEjCt3eUS1mACpD9287R0iMPBwl0EvH1Ep-dY0WoZtgx-bPtU57R1Q4hiMxHQp0l0fCR65spJw4xCNW35XLhxjTFJDbwY7209_XdvD9lNo9NauWroxI3nXe67um7hqu44XX5xKrsFJpYm1BF3F2ABn23-DP2NIsL_9hoew_Fs/w400-h400/IMG_7222.HEIC" width="400" /></a></div><br /><p><br /></p><p>講半天,最後還是要實際驗證才知道有沒有問題。(就在我上班生涯的最後一天… 嗚嗚嗚,先休息一陣子啦!我也想去美國看日全蝕啊) 把 40 公分鏡推出陽台,朝著天頂的御夫座試驗,IC 405、410、417⋯⋯ 結果相當順利,只有放抽屜時得照一下光,畢竟抽屜也窄窄的,最後只有畫了 兩隻小蝌蚪:</p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEig8g88rjWNs-n9wnOgm_7hZx9wzRvH0fXyZ6gC9bSNZ0A1Po-JKXEPDKwCvnYiUMXTO244ra0ZMCW-1p89fl16Loiu3hIVDos-1Kbwm76YskezmkKxs90eHW-hXaW0SPFPYXxu6khETIHYVygMSVhp-r0LIIT3KfcYJ0imvOdF7h2EvtIWER5tPaVUZxA/s2619/IMG_7286.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2619" data-original-width="2439" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEig8g88rjWNs-n9wnOgm_7hZx9wzRvH0fXyZ6gC9bSNZ0A1Po-JKXEPDKwCvnYiUMXTO244ra0ZMCW-1p89fl16Loiu3hIVDos-1Kbwm76YskezmkKxs90eHW-hXaW0SPFPYXxu6khETIHYVygMSVhp-r0LIIT3KfcYJ0imvOdF7h2EvtIWER5tPaVUZxA/w373-h400/IMG_7286.JPG" width="373" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">“tadpoles” Sim 130/129 in NGC 1893/419 (406mm f/3.75 dobsonian, 473X)</td></tr></tbody></table><br /><p>Sim 130 很簡單,簡單到朝東側的尾巴都追得到,西側的頭看起來像是半圓形;Sim 129 就相當困難了,averted vision 勉強可以認出跟週邊星點不一樣的物體,看得到一點點雲氣而已。</p><p><br /></p><p>實際操作裝在牛頓鏡對焦座底部的濾鏡抽屜裝置,感覺還算不錯,肯定比原來什麼都沒有時好用。成功!</p><p><br /></p><p>至於裝在對角鏡上的濾鏡快拆抽屜,我找了 4 顆當季的行星狀星雲來試。獵戶座的 NGC 2022、長蛇座的 NGC 2610、雙子座的 M1-7、麒麟座的 M1-16。</p><p><br /></p><p>CFF 160 先登場負責兩個 NGC,結果只有 NGC 2022 成功,這已經是去日本滑完雪之後的事了,隔了三年沒滑,這次摔得可慘了:</p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhXrzTi83V9KXzAyIhd8D1fwUblOsebHd_-ApXSCDm7Gs5FK3B8imfhkg09AFkBw99hiPHak6YDx-8daNqH8GbiJ7wP-f3y-qXu-cwP1UpqQlArVcftJtxU8Hj-qEkuyjxEafr4b4R1Pe1luWdcKmUQxUsVeGdDOJBMuCvrOs_jsAAkQJfsyNGs9kLna8I/s3213/IMG_7548.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2518" data-original-width="3213" height="314" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhXrzTi83V9KXzAyIhd8D1fwUblOsebHd_-ApXSCDm7Gs5FK3B8imfhkg09AFkBw99hiPHak6YDx-8daNqH8GbiJ7wP-f3y-qXu-cwP1UpqQlArVcftJtxU8Hj-qEkuyjxEafr4b4R1Pe1luWdcKmUQxUsVeGdDOJBMuCvrOs_jsAAkQJfsyNGs9kLna8I/w400-h314/IMG_7548.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 2022 (CFF 160 f/6.5; 281X no filter)</td></tr></tbody></table><br /><p>這個目標不難,而且不用濾鏡就可以清楚認出 環狀 的外觀,環的東西向兩端比較厚、明顯。</p><p><br /></p><p>另外一個 NGC 2610 是隔天用 Mewlon 210 畫的:</p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiQxBiBqxF5ZJJcF_w_2wWHE3xqXKs6ToBV1O2j1kC7mKs33sevnWMYeJFUfDn18O68dtsiYZIpEP-PajW2blCiDy0rkvsx3MxUo1v0tNZlQGEBWCwgXxPCFaTa1FKad2NRa7h0ZMENcZVTGsskX2WaCaWb3p7T_bkOpKAEv238tRfj4kf5zgddIg7zeQo/s3023/IMG_7547.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="3023" data-original-width="3023" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiQxBiBqxF5ZJJcF_w_2wWHE3xqXKs6ToBV1O2j1kC7mKs33sevnWMYeJFUfDn18O68dtsiYZIpEP-PajW2blCiDy0rkvsx3MxUo1v0tNZlQGEBWCwgXxPCFaTa1FKad2NRa7h0ZMENcZVTGsskX2WaCaWb3p7T_bkOpKAEv238tRfj4kf5zgddIg7zeQo/w400-h400/IMG_7547.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 2610 (Mewlon-210 f/11.5; 402X, no filter)</td></tr></tbody></table><br /><p>很不容易耶,還得用 Averted vision 才能看到,看到的部分並不是完整的一塊,東北跟西南各看到部分雲氣,東北那塊比較明顯。雖然最後確認時還是沒用濾鏡,只靠拉高倍,但過程中一直有抽換濾鏡,可以測試改造的部分順不順手?結果 — 很順手!</p><p><br /></p><p>另外還有兩個 Minkowski 目錄的小行星狀星雲,先是 M 1-7 :</p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiEMQzBpxKZbDAlcOB5d5E7ykoTAC7qeQqSDHLccoDr2oLr7I3vJgjWAonfiYTbx98kq9QMaxWqp67wLXR3YejZHnMHcWRWuAVzMUhyphenhyphenjkp70CvZ_oyeINTNUr0DHn2gvasugRBIQ8C9CXvIAvARonDqgi-aTtvY5TJNgfrHICthUotXnUciTYHO5QT0Nck/s2159/IMG_7546.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2159" data-original-width="2159" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiEMQzBpxKZbDAlcOB5d5E7ykoTAC7qeQqSDHLccoDr2oLr7I3vJgjWAonfiYTbx98kq9QMaxWqp67wLXR3YejZHnMHcWRWuAVzMUhyphenhyphenjkp70CvZ_oyeINTNUr0DHn2gvasugRBIQ8C9CXvIAvARonDqgi-aTtvY5TJNgfrHICthUotXnUciTYHO5QT0Nck/w400-h400/IMG_7546.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Minkowski 1-7 (Mewlon-210 f/11.5; 242X, no filter)</td></tr></tbody></table><br /><p>小歸小,但這顆作到 242X 可以直視沒問題,而且也不需要濾鏡幫忙。細節的話⋯⋯ 可以分辨出雲氣的濃淡,西南西側感覺比較濃一點。</p><p><br /></p><p>另外一個 M1-64:</p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgwQPgk7xSq3dum6nK8Vcg0n2ylEBx3IZUZfWsq9Qvh4caWVL9Ee2NqYqrTOLg_58H0V5iOFTTa0-GvjSL579d346lfmaYEdm8rLvTHQEeIcqxv96sf9aKcV26uz4vYr1KHmULWAxV4pifmWkD3kYuxFblp9got_fjV6Es-qFedv9i_IsdZLTb6bIzVW5o/s4677/IMG_7549.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="4677" data-original-width="3420" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgwQPgk7xSq3dum6nK8Vcg0n2ylEBx3IZUZfWsq9Qvh4caWVL9Ee2NqYqrTOLg_58H0V5iOFTTa0-GvjSL579d346lfmaYEdm8rLvTHQEeIcqxv96sf9aKcV26uz4vYr1KHmULWAxV4pifmWkD3kYuxFblp9got_fjV6Es-qFedv9i_IsdZLTb6bIzVW5o/w293-h400/IMG_7549.JPG" width="293" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Minkowski 1-16 (Mewlon-210 f/11.5; 193X, w/i & w/o filter)</td></tr></tbody></table><br /><p>這顆終於得靠濾鏡才搞得定了,O III 太暗,我得改用 UHC 才認得出來。另外一個困擾是附近星點太多,當濾鏡上去後我有點確認不了是哪個星點變大、變亮?不過很確定的是看到一顆變得很明顯這樣子。</p><p><br /></p><p>好啦,這就是濾鏡抽屜改造及使用實務經驗了。</p><p><br /></p><p>日本回來就確診,半個過年都待在關西隔離,還好後來天氣不錯,賺了幾個很讚的觀星夜,當然每隻都要拿出來曬一下星光:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEitSb4a3_Om_x02mGI7xNXV8Wb8F7pTd6CGjj7uhKFCaPBL6-xZpgZvJj-3BjoHfhhfdypc7L-b6bDWALtCvd6YDQOs5zv46Zm_JlrUAEnRymyDd5c_Rw6ZeLP9mONS6vvmYi6Xmv8PUzkNjV-ZZLxKGqf03YYwpnEpcaoLmml4y6rXEWQJboNbyiwsGOs/s4027/DSC_0042.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="4027" data-original-width="4027" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEitSb4a3_Om_x02mGI7xNXV8Wb8F7pTd6CGjj7uhKFCaPBL6-xZpgZvJj-3BjoHfhhfdypc7L-b6bDWALtCvd6YDQOs5zv46Zm_JlrUAEnRymyDd5c_Rw6ZeLP9mONS6vvmYi6Xmv8PUzkNjV-ZZLxKGqf03YYwpnEpcaoLmml4y6rXEWQJboNbyiwsGOs/w400-h400/DSC_0042.JPG" width="400" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgF83_dlLihekhQKIwJ04TRi0IUCYOdQ9NAc7qjIDZ6gKONW6-3CXkK5edFRChIfAzN0aJK_pSaraGtAZW_S7s5lyjDv_p2WE2GB5t4Qc3b-bBpqC_l8wZN3SPCIkNMEMZG2jVdiG0oTZeatN1nUhHi5shk1XW7LRG8gEb4dJxOJnMdWO0RhGHLxAF4fFA/s4259/DSC_0050.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3755" data-original-width="4259" height="353" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgF83_dlLihekhQKIwJ04TRi0IUCYOdQ9NAc7qjIDZ6gKONW6-3CXkK5edFRChIfAzN0aJK_pSaraGtAZW_S7s5lyjDv_p2WE2GB5t4Qc3b-bBpqC_l8wZN3SPCIkNMEMZG2jVdiG0oTZeatN1nUhHi5shk1XW7LRG8gEb4dJxOJnMdWO0RhGHLxAF4fFA/w400-h353/DSC_0050.JPG" width="400" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhSLUpfdbkUq0PcK17jogr7dBTaWQ6RuZyQKplR-esAEFdFlMPwDqqe7UebrfXaqr2CuracUcGkcMSTV19jCoDCksXtSeX-5-A7CJZ3DiGDmfNfNWK6trjdeCmj8LpORdNBHA32uEllrRWysseykj5m7VCMX6K9xt5zZVoqEZVdPtlfxApGngVqqpdZAJ4/s4154/DSC_0048.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3850" data-original-width="4154" height="371" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhSLUpfdbkUq0PcK17jogr7dBTaWQ6RuZyQKplR-esAEFdFlMPwDqqe7UebrfXaqr2CuracUcGkcMSTV19jCoDCksXtSeX-5-A7CJZ3DiGDmfNfNWK6trjdeCmj8LpORdNBHA32uEllrRWysseykj5m7VCMX6K9xt5zZVoqEZVdPtlfxApGngVqqpdZAJ4/w400-h371/DSC_0048.JPG" width="400" /></a></div><br /><p>雙筒畫了一個南天的星團,蠻美的星團 NGC 2546:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgGgsKvMjD1zyqvUnqvxAQaD1x4Umy7GrasquXD9gfN9uu0QckOupIiEqe9XuB516bH3QvmaHkqyc-9M98rbEO6mlp9e1jx01bgpz9unm-T9DWDw4TsWGOITe3R44K9NzxlCg_XodEbuGxk9jjvSD0RwCYRfWMmMUJjZWQylm1efDWh79tUMOzu9g6oaBk/s2898/IMG_7580.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2898" data-original-width="2584" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgGgsKvMjD1zyqvUnqvxAQaD1x4Umy7GrasquXD9gfN9uu0QckOupIiEqe9XuB516bH3QvmaHkqyc-9M98rbEO6mlp9e1jx01bgpz9unm-T9DWDw4TsWGOITe3R44K9NzxlCg_XodEbuGxk9jjvSD0RwCYRfWMmMUJjZWQylm1efDWh79tUMOzu9g6oaBk/w356-h400/IMG_7580.JPG" width="356" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 2546 (Borg 90FL f/5.5; 73X)</td></tr></tbody></table><br /><p>73.2 X, 不是 732X 喔! 哈哈~</p><p>這組 Borg 90FL 松本雙筒搭 Docter 12.5mm 真是絕配,看什麼都美。</p><p><br /></p>s00639http://www.blogger.com/profile/08382086616742866311noreply@blogger.com0tag:blogger.com,1999:blog-7477593545230087753.post-71223647311793171882024-01-15T15:52:00.001+08:002024-01-16T10:18:10.783+08:00鳶峰畫兩個矮星系 -- PGC 3589, PGC 10074, vdB 1, IC 10, NGC 604<p> 沒想到今年一月才第二週就有機會上山,真是美好的開始。</p><p><br /></p><p>這次上山原來設定的目標是兩個位在南天的矮星系,還有之前平地一直看不清楚的不規則星系 IC 10,最後的壓軸大工程留給上次上山看到忘我的 M33 旋臂細節... 不過最後人算不如天算</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiUyKOwyOjBwMhfUAtGdSSbJQJl163PRnBgutNzY-mrjwJoXT8zUBhMLzp6cwDhkneMgPPcdS2SC23eWwDF8aOKli8LFxtb8vYfv3HvJUgO393tFqaFg-k5ZpE6yshQyVEvttWUsuQaDiSoul-cQYGDqnV0osSuhwrG-JFDYpXL0ML8PWVodXUh8tV7wZc/s1776/537319BF-166C-411A-A56A-4AE6C52B3B59-7413-00000474E42E200F.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1184" data-original-width="1776" height="266" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiUyKOwyOjBwMhfUAtGdSSbJQJl163PRnBgutNzY-mrjwJoXT8zUBhMLzp6cwDhkneMgPPcdS2SC23eWwDF8aOKli8LFxtb8vYfv3HvJUgO393tFqaFg-k5ZpE6yshQyVEvttWUsuQaDiSoul-cQYGDqnV0osSuhwrG-JFDYpXL0ML8PWVodXUh8tV7wZc/w400-h266/537319BF-166C-411A-A56A-4AE6C52B3B59-7413-00000474E42E200F.jpg" width="400" /></a></div><br /><p>可能因為隔天是選舉日,鳶峰沒什麼人,一到台上就看見久違的小鍾兄,其實也不用看到人,看見那紅腳架、棕椅子、DM-6、Mewlon-210,就知道是他了;還有變得有點滄桑的怪怪兄... 一樣,看到下面那台白色 X5 大概也猜得到是他啦,哈哈~ </p><p><br /></p><p>這次只帶 16" DOB 上來,還有 Nikon 10X 50mm WX,想套個濾鏡試試看冬季那幾個星雲效果如何? 可能東西比較大,裝起來後大家都跑來拍照了...</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhe9xiKeD1h0VtphmQlmiOmOEraAbMi9PbDw7MQSrGzZAZEtNyx1hf48HhnrVP8JczlFi3N7-mcqDATLCzragZd_IFiLvWXJJG6WCVNf-nModgkkVJkQrVNM2oT5NDjr2clCVV7V33cmIgsbvPEDI683VdYokagYQhnQBeUYwBI6SJylE-wLlhdCNzf1Fw/s1183/2AC7EC53-1AB2-493A-A71B-72A39BAF4AD9-7413-00000474C6A8970F.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1183" data-original-width="1183" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhe9xiKeD1h0VtphmQlmiOmOEraAbMi9PbDw7MQSrGzZAZEtNyx1hf48HhnrVP8JczlFi3N7-mcqDATLCzragZd_IFiLvWXJJG6WCVNf-nModgkkVJkQrVNM2oT5NDjr2clCVV7V33cmIgsbvPEDI683VdYokagYQhnQBeUYwBI6SJylE-wLlhdCNzf1Fw/w400-h400/2AC7EC53-1AB2-493A-A71B-72A39BAF4AD9-7413-00000474C6A8970F.jpg" width="400" /></a></div><br /><p><br /></p><p>順利組完、調好光軸,也校準完 RDF,然後目鏡、素描器材... 放好位置後就等天黑囉。七點過後南天雲氣較散了,先抓幾個目標觀察透明度與 seeing,差不多可以後就移往第一個目標,別名 玉夫座矮星系 (Sculptor Dwarf Galaxy) 的 PGC 3589,整體亮度 +9.51,但 矮星系嘛,總是大面積、平平均均的沒什麼集中亮區... 不是那麼好辨識:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi-O10gmg4AQc6iHZp-Ix3KiNxvEmBrNwOLRmMjMmY8udU1hrBFkNTWbY4VSVi7cRiCNSlFq6y0-Zv3RTUFIMyiUwxnHU60C61dUFVuyZoYYMyhyphenhyphenqm5KOeyqx4TlCv8FIcT2Qgh2p9R58F1ugEIhXGHWdzChzgWth7yRtbceiXfNRb2ppYAkCtCJq5VeVU/s1834/IMG_7102.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1834" data-original-width="1832" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi-O10gmg4AQc6iHZp-Ix3KiNxvEmBrNwOLRmMjMmY8udU1hrBFkNTWbY4VSVi7cRiCNSlFq6y0-Zv3RTUFIMyiUwxnHU60C61dUFVuyZoYYMyhyphenhyphenqm5KOeyqx4TlCv8FIcT2Qgh2p9R58F1ugEIhXGHWdzChzgWth7yRtbceiXfNRb2ppYAkCtCJq5VeVU/w400-h400/IMG_7102.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Sculptor Dwarf Galaxy (PGC 3589, 406mm f/3.75 DOB, 103X)</td></tr></tbody></table><br /><div><br /></div><div>結果有點出乎意料的簡單,一眼就看到矮星系那種... 怎麼説呢? "質地粗粗" 的感覺。邊界不是很清楚,因此如果想盡量畫準的話,我通常會多找一些星點當參考點,然後以參考星點當標旗來描繪範圍與細節的位置;草稿盡量多資訊,包括文字與圖示,之後才會後製修圖到完稿。</div><div><br /></div><div>我拖小鍾過來確認,他看完後直說很亮很亮啊... 所以應該真的很明顯,不過小鍾兄近年來練功練超勤,又正值盛年,他說的 "很亮" 我能了解,當你看 100 個超暗的目標之後,隨便一個稍亮的目標都會覺得 "很亮",真的。 </div><div><br /></div><div><br /></div><div><br /></div><div>畫完玉夫座矮星系後,移到旁邊的天爐座,下個目標是天爐座矮星系 (Fornax Dwarf Galaxy):</div><div><br /></div><div><br /></div><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgzUmtbhH9KAOGcGXitkCyjz_-XFBKb9l7bgDuoFxdZb3tvU2IIDkZyI0nVliYuAGS8IDLFHugk3Yw2_J3cZUUl6KDPON8C53_EM1lTma4okEmcBJ6PV7zc3my95zxkP2DG0YAhuFLx3NMx5N1hHm1QxnLgYyOyMypthItD4vO4_x09Y5DuyF74hcT53zQ/s1899/IMG_7101.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1899" data-original-width="1899" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgzUmtbhH9KAOGcGXitkCyjz_-XFBKb9l7bgDuoFxdZb3tvU2IIDkZyI0nVliYuAGS8IDLFHugk3Yw2_J3cZUUl6KDPON8C53_EM1lTma4okEmcBJ6PV7zc3my95zxkP2DG0YAhuFLx3NMx5N1hHm1QxnLgYyOyMypthItD4vO4_x09Y5DuyF74hcT53zQ/w400-h400/IMG_7101.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Fornax Dwarf Galaxy (PGC 10074, 406mm f/3.75 DOB, 103X)<br /></td></tr></tbody></table><br /><div><br /></div><div><br /></div><div>這個目標比前一個難,雖然整體亮度有 +8.19,不過範圍大多了,因此要稍微專心一點才能確認;它的範圍應該比我畫的更大,畫面上方 (整個南側) 應該也是它的範圍,不過對比很低,我沒辦法把實際的視感表達得很好。星系北側有個它自己的球狀星團,有 NGC 編號 -- NGC 1049,以前畫過幾次,不過都沒這次清楚,很亮的核心,473X 下能分出三層不同亮度。</div><div><br /></div><div><br /></div><div><br /></div><div>這兩個畫完後休息一下,拆獵戶座四合星旁的亮兩顆 E, F 星,鳶峰當時所有同好都看過一輪,大家都看到了喔 ~ 晚一點再來拆天狼星。</div><div><br /></div><div><br /></div><div><br /></div><div>接著轉往北天找最近在平地看到很挫折的 IC 10;沒想到仙后座都要西斜了,心還停在秋天,結果近午夜後春天的獅子與大熊都爬出來了...... 日子就這樣一直轉、一直轉,只能順著它走了。IC 10 的位置很好找,在仙后標記的 W 尖端 beta 星附近而已,不過仙后座 beta 星 旁電子星圖有個方框框 編號 vdB 1 的反射星雲,在平地很認命知難而退,每次都會默默跳過,但這次都把最大隻的扛上山了,當然要畫一下囉:</div><div><br /></div><div><br /></div><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjvXZryCmwozJCnLoBT8ieWWA1uZEpZ0yx5M4Ei7bFGvIkx6XIlgtq2N9E6Sv8Lz6iW3i6kbMlKbUfM5-yh3uOlyWqPBqLLBhvQswZG6BxqLYzkGVjiWP7j0qIp-OvbdWJBbkyvtBepgabGlwAL-0sGvcFHqLleOU94Ylg1XwrgUvvDgbSJEilPdIdfF3I/s2213/IMG_7109.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2213" data-original-width="2213" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjvXZryCmwozJCnLoBT8ieWWA1uZEpZ0yx5M4Ei7bFGvIkx6XIlgtq2N9E6Sv8Lz6iW3i6kbMlKbUfM5-yh3uOlyWqPBqLLBhvQswZG6BxqLYzkGVjiWP7j0qIp-OvbdWJBbkyvtBepgabGlwAL-0sGvcFHqLleOU94Ylg1XwrgUvvDgbSJEilPdIdfF3I/w400-h400/IMG_7109.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: left;">vdB 1 (reflect nebula, 406mm f/3.75 DOB, 292X)</td></tr></tbody></table><br /><div><br /></div><div>沒問題,淺淺的雲氣瀰漫在三顆 8.X 等亮星周遭,附近星點好幾組都是兩顆兩顆的。此時有量一下 SQM,差點還不到 21,有點糟.... 是因為空氣太多微塵散射,還是連鳶峰也開始被光害侵蝕了呢?</div><div><br /></div><div><br /></div><div><br /></div><div>終於抵達目的地 IC 10 了,看到是沒問題啦,不過真的只看到微微的雲氣,這在平地認得出才有鬼...</div><div><br /></div><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEia1CK3fWzaKV9S58Z-I9vGXDxOB191h0AHL0mCLXjFrc45bu0mIQsP6096PeLMakNnDjpe70WKapXcHN9Ofx3a7Fsk2P92auLwJPb5p5jH98IcBfc0L6H5xdMCtao6wNEUSg6aF5l-xV_0SA1pe0A1ZtcE0qGqHWSX69mx55G9BdOdoXWxvbZjZAtC4lA/s2370/IMG_7110.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2370" data-original-width="2370" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEia1CK3fWzaKV9S58Z-I9vGXDxOB191h0AHL0mCLXjFrc45bu0mIQsP6096PeLMakNnDjpe70WKapXcHN9Ofx3a7Fsk2P92auLwJPb5p5jH98IcBfc0L6H5xdMCtao6wNEUSg6aF5l-xV_0SA1pe0A1ZtcE0qGqHWSX69mx55G9BdOdoXWxvbZjZAtC4lA/w400-h400/IMG_7110.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;"><span style="text-align: left;">IC 10 (Irregular Galaxy, 406mm f/3.75 DOB, 292X)</span></td></tr></tbody></table><br /><div><br /></div><div>外緣邊界不太規則,雲氣中央部分比較明顯,主要圍繞在在一顆標號 TYC 3665-1255-1 的 +12.68 星星周圍,西側也比東側亮一些,邊緣界線很難界定清楚。</div><div><br /></div><div><br /></div><div><br /></div><div>最後就是今天的重頭戲 M33 啦! 結果...</div><div>一來透明度有點變差,幾個上次一眼就認出的旋臂內 IC 目標這次看得很吃力;再來是實在太冷了,衣服夠暖身體沒問題,但手要伸出來畫圖就很痛苦,畫一分鐘手就凍僵,帶手套畫又很笨拙... 掙扎半天後就決定放棄了,最後只有拉高倍仔細看一下 NGC 604 後草草結束任務:</div><div><br /></div><div><br /></div><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhWch5fla1xzgx-iKNefQ9RKmjys3FlU5AB2ZKXzXxnZhvz2nh1IyKSRMLL4a_eEq_XwfQc28WGh34XZ53-n9ea0zK3Ls53ioDh6aw7iceRBMYhaVx2Z-uCGPPo9FYEh9gbC0qIhQ4fr2Lh1ROtdi407U1mL2YGbQsWXDnvGtaRl-2hTLZGWrqgksiQLLo/s1741/IMG_7108.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1741" data-original-width="1741" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhWch5fla1xzgx-iKNefQ9RKmjys3FlU5AB2ZKXzXxnZhvz2nh1IyKSRMLL4a_eEq_XwfQc28WGh34XZ53-n9ea0zK3Ls53ioDh6aw7iceRBMYhaVx2Z-uCGPPo9FYEh9gbC0qIhQ4fr2Lh1ROtdi407U1mL2YGbQsWXDnvGtaRl-2hTLZGWrqgksiQLLo/w400-h400/IMG_7108.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;"><span style="text-align: left;">NGC 604 (406mm f/3.75 DOB, 473X)</span></td></tr></tbody></table><br /><div><br /></div><div><br /></div><div>周圍的星點看到 14.7 可以,15.出頭的就很困難了,的確觀測條件比上次差很多。不過 473X 下的 NGC 604 第一次看到如此不規則狀的外觀,東南側雲氣比較濃厚,因此外觀 "整體" 看起來有一點三角形的樣子。</div><div><br /></div><div><br /></div><div>之後用 6mm Ethos (292X) 拆了位置還很低的天狼星,只有 37 度仰角左右;不過 OK 啦,細細的小狼分得還蠻開的,也找小鍾兄一起來確認過。</div><div><br /></div><div>再之後就是 Nikon 10X 50mm WX 的表現了,先把大傢伙收好,換小雙筒上腳架,切換到悠閒觀星模式。順著大犬尾巴往東南的銀河越低越精彩,以小雙筒而言,我最喜歡的視野就是以 橘黃色船尾座 c 星 (c Puppis) 及兩顆藍色亮星三角形為中心的 NGC 2451 當中心點的視野,其東側的疏散星團 NGC 2477 霧霧的點綴在旁,周遭銀河其它星點襯托下,有遠有近,加上色彩繽紛的星星們閃爍不已,整個視野立體感十足,看著看著都醉了呢。然後換上 UHC 濾鏡看 玫瑰、海鷗,往北看心與魂... 都看得到,不過雲氣淡淡的而已,還不到令人驚豔的地步,這隻超廣角雙筒還是看星點好。</div><div><br /></div><div><br /></div><div>收好裝備,心滿意足的回家,看看車上的溫度計: 0 度!</div><div><br /></div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjvbwmKrbtyaLCc-03L51MFEOQXCM4zgkyy-RCY8SccHjQYEKe-slVbr4oaJ5PdVvuBl9PVLcK97LGoTHQZinkwUqNScIfDB1B3hOhMtbyBJzXj7EvprQDQgdxT2ztlEhpfJNYs8wNVQgkRYImpRmwAXSjdsrdkkwnkT9nJZyrN4h-Y9IEu2EUDjb2vRiw/s2338/IMG_7088.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2336" data-original-width="2338" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjvbwmKrbtyaLCc-03L51MFEOQXCM4zgkyy-RCY8SccHjQYEKe-slVbr4oaJ5PdVvuBl9PVLcK97LGoTHQZinkwUqNScIfDB1B3hOhMtbyBJzXj7EvprQDQgdxT2ztlEhpfJNYs8wNVQgkRYImpRmwAXSjdsrdkkwnkT9nJZyrN4h-Y9IEu2EUDjb2vRiw/w400-h400/IMG_7088.HEIC" width="400" /></a></div><br /><div><br /></div><div><br /></div>s00639http://www.blogger.com/profile/08382086616742866311noreply@blogger.com3tag:blogger.com,1999:blog-7477593545230087753.post-15504540778620944012023-12-29T16:46:00.032+08:002023-12-29T23:42:13.848+08:002023 年的小回顧<p>每年12 月底,我總會花點時間整理一年來勤奮的觀星紀錄與邪惡的購物清單;比起過去幾年,2023 年有很大的不同... 就以 "觀星紀錄" 來說吧,過去每年超過 100 次的觀察次數從搬家到市區後就逐漸下降,2020 年首次跌破百次: 95;2021年又回到百次以上;2022 年: 82;今年 2023 剩: 52 了,差不多是腰斬;不過好消息是歷經幾年疫情後又開始上山了,雖然只有 3 次,但總是個開始。</p><p><br /></p><p>這幾年使用的架台比較固定了,不再浪費錢換來換去;從 2020 年起幾乎只在用 RST-135 與 RST-300 ,在市區家則以手動的 DM-4 為主,DM-6 現在很少用,只在測試或調整器材時才用:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg8moHSatIWd_OQ9NYzHXPL6Vz-9fIBgARWE7pfIx0zHjdDDUed1s3dui3lhzFv44TjrwZgs51V9HSqlJ0gPlKwcaVUfKEcx6qGDR2aO8Jvjzm5l7pADW0fyr-aFDl2MvFptMlMuf13_83lgQSOunJDjRkRkQwp8VQz9MtWg-cOXsT7c9WEwTp-TmTy4xw/s2899/IMG_0978.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2899" data-original-width="2899" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg8moHSatIWd_OQ9NYzHXPL6Vz-9fIBgARWE7pfIx0zHjdDDUed1s3dui3lhzFv44TjrwZgs51V9HSqlJ0gPlKwcaVUfKEcx6qGDR2aO8Jvjzm5l7pADW0fyr-aFDl2MvFptMlMuf13_83lgQSOunJDjRkRkQwp8VQz9MtWg-cOXsT7c9WEwTp-TmTy4xw/w400-h400/IMG_0978.HEIC" width="400" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj9Kx-gcGHIklv9o_w_nJIL5qVR4F2TrsEXfltpsm45LroQiOV7I9P0HUIkkJo7BKTE6NTdFUP-L1-SifcfGW72vN9H-TP_WxCFl1TxNv9AJvhmwIjDIrLwDPosyKL6o5Bg5-nUdmFM2BC4saLFLhFsbWtI2ZI_Frhnuxv6S1SKcYMODUzmk9SiF0Ej7E4/s1776/CA94933E-DB09-42E9-BAF9-081F0EAA40F2-4425-0000034810CF119A.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1184" data-original-width="1776" height="266" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj9Kx-gcGHIklv9o_w_nJIL5qVR4F2TrsEXfltpsm45LroQiOV7I9P0HUIkkJo7BKTE6NTdFUP-L1-SifcfGW72vN9H-TP_WxCFl1TxNv9AJvhmwIjDIrLwDPosyKL6o5Bg5-nUdmFM2BC4saLFLhFsbWtI2ZI_Frhnuxv6S1SKcYMODUzmk9SiF0Ej7E4/w400-h266/CA94933E-DB09-42E9-BAF9-081F0EAA40F2-4425-0000034810CF119A.jpg" width="400" /></a></div><br /><p><br /></p><p>2023 年被送走的有誰呢?</p><p><br /></p><p>第一名: DOCTelescope 305mm F/3.85 Newtonian</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjUcCQbGYlboCqxhlv3jCsRqifLWKoY7bXBkVKOWAwqjE-nBCJDqUYbsQWWditXgV1YDz5Guzqybmw4x-qienpE2QetKLv0DVebNeM0OhD5ZUr2jO8asOxJ9EU06AZMNZFEP9TpFEftmaZJiW9pK9U11hwq5KXyQORYTfvrZaFC7HuUpL8G9iTm0TY5g6I/s1183/52A8381B-A6A6-4226-8A5E-3740A437E85B-12844-0000081F64F0F968.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1183" data-original-width="1183" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjUcCQbGYlboCqxhlv3jCsRqifLWKoY7bXBkVKOWAwqjE-nBCJDqUYbsQWWditXgV1YDz5Guzqybmw4x-qienpE2QetKLv0DVebNeM0OhD5ZUr2jO8asOxJ9EU06AZMNZFEP9TpFEftmaZJiW9pK9U11hwq5KXyQORYTfvrZaFC7HuUpL8G9iTm0TY5g6I/w400-h400/52A8381B-A6A6-4226-8A5E-3740A437E85B-12844-0000081F64F0F968.jpg" width="400" /></a></div><br /><p>總共才陪我 15 個月,當時是為了更大口徑而賣掉 CFF 250CC 換來的;結果今年又為了優化整體重量及受不了更高檔的主鏡材質誘惑被 Catalin 拐去訂了 CFF 300CC... 只是不知道他老兄明年到底交得出來嗎? 哭哭⋯⋯</p><p><br /></p><p>第二名是第二度購買的 FC-76 DCU:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhl6WMpzMqgVGksK5gH3j6OM8wZ0vXbgErrdt1iEJTb7Vl1B5R0RF0iZ1CwzJVun1KwCMciEAQB-8YvJkKfMkDXcptDgNQAixRAuSXD7UMNm2koBngksCYd5l1jZH62Ga3hwJPqxEvG9Y7t4LTsfF0R8dAFRSZ-VtIhKRSPMUXKTf2eULzoBJRx55PdS0w/s1063/265B2E06-8CE9-4609-A4B1-D5DAA7DFEE3B-3242-000039739CEA44CF.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1063" data-original-width="1063" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhl6WMpzMqgVGksK5gH3j6OM8wZ0vXbgErrdt1iEJTb7Vl1B5R0RF0iZ1CwzJVun1KwCMciEAQB-8YvJkKfMkDXcptDgNQAixRAuSXD7UMNm2koBngksCYd5l1jZH62Ga3hwJPqxEvG9Y7t4LTsfF0R8dAFRSZ-VtIhKRSPMUXKTf2eULzoBJRx55PdS0w/w400-h400/265B2E06-8CE9-4609-A4B1-D5DAA7DFEE3B-3242-000039739CEA44CF.jpg" width="400" /></a></div><br /><p><br /></p><p>還不錯,撐了快 2 年半才被無情的主人賣掉,算是去年底換成 FC-100 DZ 的關係嗎?</p><p><br /></p><p>第三名也是 第二度購買的 Mewlon-180C:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgba5bHN0MAeKT6_s3qocdrJ2lIKZnRLxkFfqX4HkC1j5lF0alGhj-EMrZDO9l9pM9eQkE5cYeR5Tn1Fvvf5ajOiVDhckCBKqc4jqsLV8vTJ9whOWqjNlKJMqppqGNtRT6JYPzL5KFZ_ZaWu51CExAO6IKIJynImmtx-uVtJiDNAZtjf2t_SCuwoKYDqNw/s4032/IMG_1238.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3024" data-original-width="4032" height="300" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgba5bHN0MAeKT6_s3qocdrJ2lIKZnRLxkFfqX4HkC1j5lF0alGhj-EMrZDO9l9pM9eQkE5cYeR5Tn1Fvvf5ajOiVDhckCBKqc4jqsLV8vTJ9whOWqjNlKJMqppqGNtRT6JYPzL5KFZ_ZaWu51CExAO6IKIJynImmtx-uVtJiDNAZtjf2t_SCuwoKYDqNw/w400-h300/IMG_1238.HEIC" width="400" /></a></div><p><br /></p><p><br /></p><p>這支是買二手的,撐了快 2 年,主要放在市區看行星用;結果接手 Kenji 先生的 Mewlon-210 後替換掉,Mewlon-210 也是第二次買,怎麼老作這種蠢事?</p><p><br /></p><p>第四名同樣是第二次購買的 Nikon 18X 70mm 雙筒:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjLZrZyYwH-sW_HTi33K0YLm4IAGZMoyHpwpEIo_sNmxLvNUnu8Q8aFCEVspw8WFrnDkMuruBpxwnPhaCKYUlpUUYKpLnQa6BJOMZlsha6Mlqq2qHaIF42qW95fz3G0OTR4S7XyKfkVOFQQttoY8djWvOJiYQepV2Jim7SoQg84_PGGBHP97wijdfDymoU/s3452/IMG_1505.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2258" data-original-width="3452" height="261" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjLZrZyYwH-sW_HTi33K0YLm4IAGZMoyHpwpEIo_sNmxLvNUnu8Q8aFCEVspw8WFrnDkMuruBpxwnPhaCKYUlpUUYKpLnQa6BJOMZlsha6Mlqq2qHaIF42qW95fz3G0OTR4S7XyKfkVOFQQttoY8djWvOJiYQepV2Jim7SoQg84_PGGBHP97wijdfDymoU/w400-h261/IMG_1505.HEIC" width="400" /></a></div><br /><p><br /></p><p>後面那隻啦,前面這隻賣掉我就剁手!! ^^"</p><p>同樣撐了快 2 年,實在太少用就賣掉了,如果硬說換了什麼? 應該就是 Canon 18X 50mm IS 吧?</p><p><br /></p><p>目鏡的話,換掉一堆 LE 跟高橋的 Abbe:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjMSEvlhMWuQN10v78nF3LMKfIvLOYJN8yF3CBbZtGrzmOHRnORlOFfpJ4jXCMS3f3lWuc3hdfTXmFqh6D5xS2LZ7KAm7F9uupqHHMzED6396v8iklW_3z4yyseKQmu6SEPx2ViownoLs8RMz7o05LFOrnDC_rqK4WRVCfI1f-I5CM6U4YWLzWaQUtMBWg/s3715/A70C2740-1708-4C7C-9655-445E4CF9D28F.jpeg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2476" data-original-width="3715" height="266" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjMSEvlhMWuQN10v78nF3LMKfIvLOYJN8yF3CBbZtGrzmOHRnORlOFfpJ4jXCMS3f3lWuc3hdfTXmFqh6D5xS2LZ7KAm7F9uupqHHMzED6396v8iklW_3z4yyseKQmu6SEPx2ViownoLs8RMz7o05LFOrnDC_rqK4WRVCfI1f-I5CM6U4YWLzWaQUtMBWg/w400-h266/A70C2740-1708-4C7C-9655-445E4CF9D28F.jpeg" width="400" /></a></div><br /><p>因為 高橋出了新系列呀 ~</p><p><br /></p><p>舊人走,新人來,有哪些新朋友呢:</p><p><br /></p><p>第一是 高橋的新目鏡系列 TPL:</p><p><br /></p><p></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiOghTpu-wCzeHVp-yl-2ZbiNl72J-iN35uObJqnsnCfsWTxvUelcidNlk5zDkRWM0dobdyoccQBCB7YnVA1Pjj6CANMRYPK_dN2arx2yKVg5-b1wi-b52yzuoL3WbBdoZaeOoUUzgkF3lLbY_uvKNAynIG2PKBtxRE0fJbLtuDHAWu3lRA9ki8XTGBFeA/s2475/IMG_6246.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2475" data-original-width="2475" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiOghTpu-wCzeHVp-yl-2ZbiNl72J-iN35uObJqnsnCfsWTxvUelcidNlk5zDkRWM0dobdyoccQBCB7YnVA1Pjj6CANMRYPK_dN2arx2yKVg5-b1wi-b52yzuoL3WbBdoZaeOoUUzgkF3lLbY_uvKNAynIG2PKBtxRE0fJbLtuDHAWu3lRA9ki8XTGBFeA/w400-h400/IMG_6246.HEIC" width="400" /></a></div><br /> <p></p><p>後來還追加了 9mm 一對,都是 Kenji 先生幫忙帶的。</p><p><br /></p><p>第二是 Canon 18X 50mm IS:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgJAv3gpbEb4jU_uSwLUB18rIR8BJyHEB_MZk_AHBlQhD9nUA5S_YiWRof9OUpbkVdAobIxvO85cJkAS3302oHx4DeoWQG1GkurTSyc7zMII09bI9wiGn1WxzENM0DO0TBQARuZVtwdsOpK-EinkcGiMpEiOlgJX_qPtFqFn5vpZzNwgjMxWIVUrx0FSYA/s3024/IMG_5853.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3024" data-original-width="3024" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgJAv3gpbEb4jU_uSwLUB18rIR8BJyHEB_MZk_AHBlQhD9nUA5S_YiWRof9OUpbkVdAobIxvO85cJkAS3302oHx4DeoWQG1GkurTSyc7zMII09bI9wiGn1WxzENM0DO0TBQARuZVtwdsOpK-EinkcGiMpEiOlgJX_qPtFqFn5vpZzNwgjMxWIVUrx0FSYA/w400-h400/IMG_5853.HEIC" width="400" /></a></div><br /><p>這也是 Kenji 先生帶回來的……</p><p><br /></p><p>第三是 Mewlon-210,又是 Kenji 先生的</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgLZFRz8j9blOMmf5boCHzR2ps1v8DTB1MmR2ohlibqx_YaLXBSrVuNOg3czNGPpE2bIuCBVzKOx1FeAl0Dw9q8SYjWs7rbKGWKZP8LNeQsNkY5hCNqOi0i_IIvbQ9IgkTmOth-J8fNgfRWnIDJNyAjNYMh6rJ4cHQPTidink5Gby2Brc8Y9USFt3msDF4/s1182/4130B92B-A68C-4FC5-90FE-1FAB3A4F7ABA-12280-00000775ED520858.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1182" data-original-width="1182" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgLZFRz8j9blOMmf5boCHzR2ps1v8DTB1MmR2ohlibqx_YaLXBSrVuNOg3czNGPpE2bIuCBVzKOx1FeAl0Dw9q8SYjWs7rbKGWKZP8LNeQsNkY5hCNqOi0i_IIvbQ9IgkTmOth-J8fNgfRWnIDJNyAjNYMh6rJ4cHQPTidink5Gby2Brc8Y9USFt3msDF4/w400-h400/4130B92B-A68C-4FC5-90FE-1FAB3A4F7ABA-12280-00000775ED520858.jpg" width="400" /></a></div><br /><p><br /></p><p>第四是 Borg FL 鏡頭,還是 Kenji 先生帶回來的⋯ </p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgFyzW07RISFKdKnlgcUPR-Lapp8BxpZepDPKn6ZiKRNxpsI9PyUtER6vKXZqEaZRfdqg3hhE0yTrsvGTh8Nojc-FqFSU5vhdJTygF0hdvp2PYUf4lpDaYOZHkdhVCbcWNv0TR1029WQJPvQY2KbttzE5XTDrtAXy3s0mJGKVy8HI7yeCqnZfMHQdHOb5A/s1110/4EDDC256-F8FE-4270-A41E-3405B6AC51A6-42696-00001677D4D70B81.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1110" data-original-width="1110" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgFyzW07RISFKdKnlgcUPR-Lapp8BxpZepDPKn6ZiKRNxpsI9PyUtER6vKXZqEaZRfdqg3hhE0yTrsvGTh8Nojc-FqFSU5vhdJTygF0hdvp2PYUf4lpDaYOZHkdhVCbcWNv0TR1029WQJPvQY2KbttzE5XTDrtAXy3s0mJGKVy8HI7yeCqnZfMHQdHOb5A/w400-h400/4EDDC256-F8FE-4270-A41E-3405B6AC51A6-42696-00001677D4D70B81.jpg" width="400" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg5nejkqgz-r4fj7srH5TSVnHEeW4BKCKcxzN2rUknhyphenhyphenUpcZqtIuYXTNDaJcSfyE-A-pYcnvafw1XC4z5Aw5RsB8VDWPhx-_L97BFbIJX1QvpBXAuAT6tMCXYlbLdalUJM9ASZ2Zlqfj-GD7rF1IVv6F8zgdthqWZAOy9qbiCi3rppxxz-Y0iUll9B4NAM/s1183/52A7A9BB-D952-40CC-8160-4E56E4A0B0CA-42696-00001677A3B3F4E9.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1183" data-original-width="1183" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg5nejkqgz-r4fj7srH5TSVnHEeW4BKCKcxzN2rUknhyphenhyphenUpcZqtIuYXTNDaJcSfyE-A-pYcnvafw1XC4z5Aw5RsB8VDWPhx-_L97BFbIJX1QvpBXAuAT6tMCXYlbLdalUJM9ASZ2Zlqfj-GD7rF1IVv6F8zgdthqWZAOy9qbiCi3rppxxz-Y0iUll9B4NAM/w400-h400/52A7A9BB-D952-40CC-8160-4E56E4A0B0CA-42696-00001677A3B3F4E9.jpg" width="400" /></a></div><br /><p><br /></p><p>第五名... 406mm f/3.75 的主鏡與 16" DOB 整體的結構重作,其實等於重買一隻 40 公分 DOB 了:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj_j5bzJCVTCY_9ZlT8ETBDLjqedED4Zke1uzsB3U6GyP_I9M-6933fks3-mSvScCE0r2OWfOJjoObI_VdLEKFfL8sE-8S9ng6D28RUx_rrut_5yEvkxoaIpil7y0G1s3GBZGAccrmAkV1fguradqQZn1ZyK7pFT3FM7MN3L7iGO9BlqVNvUO60cHySEW8/s1776/70D26CBA-1FD1-4A1E-8489-68F9859E2CA3-1092-000000468F8D0BF9.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1776" data-original-width="1184" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj_j5bzJCVTCY_9ZlT8ETBDLjqedED4Zke1uzsB3U6GyP_I9M-6933fks3-mSvScCE0r2OWfOJjoObI_VdLEKFfL8sE-8S9ng6D28RUx_rrut_5yEvkxoaIpil7y0G1s3GBZGAccrmAkV1fguradqQZn1ZyK7pFT3FM7MN3L7iGO9BlqVNvUO60cHySEW8/w266-h400/70D26CBA-1FD1-4A1E-8489-68F9859E2CA3-1092-000000468F8D0BF9.jpg" width="266" /></a></div><br /><p>沒想到這隻現在變成我的主力,果然只會越來越大隻 ^^"</p><p>這隻 40 公分與 Mewlon-210 兩隻出勤次數相同,合起來佔 50% 的主鏡使用率</p><p><br /></p><p><br /></p><p>那今年有什麼印象深刻的目標觀察呢:</p><p>首先當然是鳶峰碰到好天氣那次了,用 16 吋主鏡看到滿滿雲氣交錯的史蒂芬五重奏:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjrANmCrp5EfT3yxOSsxRaUA0UYJBElgkccJrCg531M-uEK2j_pe1nej0J4zxnq-TA2v1gSQKtDjCwoI0ZSo4DVw1f6iUwUC8yviFycq9Copkkevg6SEthcCrwViuXMuV2scTbMGlEqBvdvx22GFkSG3mWPeSHSo1y6ayeOPnleDSlSHX5yskAER_YPEdg/s2129/IMG_6628.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2129" data-original-width="2129" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjrANmCrp5EfT3yxOSsxRaUA0UYJBElgkccJrCg531M-uEK2j_pe1nej0J4zxnq-TA2v1gSQKtDjCwoI0ZSo4DVw1f6iUwUC8yviFycq9Copkkevg6SEthcCrwViuXMuV2scTbMGlEqBvdvx22GFkSG3mWPeSHSo1y6ayeOPnleDSlSHX5yskAER_YPEdg/w400-h400/IMG_6628.JPG" width="400" /></a></div><br /><p><br /></p><p>還有 NGC 7331 與 NGC 891 的暗帶... 好清楚呀! </p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgozTMJIUl1HQMm387VJSkM9kNZY8ICsGsu3ardm9JM5-iDC4htayN1jeOhpFzKM8L2aE9j0HkZG_C04p20xpZVsnngaxWO-NS7SZe6D-kUOSNtrTXea4h-tuBmPpZc2-0TYXhDZ29rcLJD89ILbG71GluY8UAXneHQHw51KH96zPgGPOtv9TofYFgKVKk/s2381/IMG_6626.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2381" data-original-width="2381" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgozTMJIUl1HQMm387VJSkM9kNZY8ICsGsu3ardm9JM5-iDC4htayN1jeOhpFzKM8L2aE9j0HkZG_C04p20xpZVsnngaxWO-NS7SZe6D-kUOSNtrTXea4h-tuBmPpZc2-0TYXhDZ29rcLJD89ILbG71GluY8UAXneHQHw51KH96zPgGPOtv9TofYFgKVKk/w400-h400/IMG_6626.JPG" width="400" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgAVckvWv4gr5KZhLChHTUlMnKCCvI32QtQ8AW9Pj9l0B18JB4vwyuQ1HPx9QElUWmpSp4eaqAd3NVnySLfvkQsgBJWj2Qmj2d6906clSxSq3BX4liRtynstlvQt46ltoYpr3HqMoXP8Fvxt6dncHnkpLunx5ZlYehuHFS3LDsVgXr-Hc-wFC6s-fhDLB8/s2525/IMG_6627.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2523" data-original-width="2525" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgAVckvWv4gr5KZhLChHTUlMnKCCvI32QtQ8AW9Pj9l0B18JB4vwyuQ1HPx9QElUWmpSp4eaqAd3NVnySLfvkQsgBJWj2Qmj2d6906clSxSq3BX4liRtynstlvQt46ltoYpr3HqMoXP8Fvxt6dncHnkpLunx5ZlYehuHFS3LDsVgXr-Hc-wFC6s-fhDLB8/w400-h400/IMG_6627.JPG" width="400" /></a></div><br /><p><br /></p><p>用小鏡子看出因南北極暗而呈現出 "長方形" 樣的 IO 也頗難忘:</p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgrk5NHWRESlkLJ7Sdm2F376y7epGkNp44bW6N2XjddMNHOlv5uNmWcM8mHRxzkZC2GJFXo1-tPE4Ecvqtl7wAZ-8RgHukUqloR-17K3wKL4fnCsJbJk6hmaAlluIzirlkzd71Ga_qfwJL9D2uUZEu_2apEEGBfJh2K-ggdQtd7BxwTV1MR6DATb6jbtL4/s1080/395549745_24620611410859573_6644459169420816914_n.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1080" data-original-width="1080" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgrk5NHWRESlkLJ7Sdm2F376y7epGkNp44bW6N2XjddMNHOlv5uNmWcM8mHRxzkZC2GJFXo1-tPE4Ecvqtl7wAZ-8RgHukUqloR-17K3wKL4fnCsJbJk6hmaAlluIzirlkzd71Ga_qfwJL9D2uUZEu_2apEEGBfJh2K-ggdQtd7BxwTV1MR6DATb6jbtL4/w400-h400/395549745_24620611410859573_6644459169420816914_n.jpg" width="400" /></a></div><br /><p><br /></p><p>今年用大鏡子看了不少新舊目標,雖然很厲害,不過因為想說都用了大鏡子,看到這些星系、球狀星團... 也不算什麼啦~ 倒是有些之前看多很多次卻一直模模糊糊的目標,今年看清楚了覺得印象深刻,比如 WR 134 nebula:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjIsD8cAtvVPOGID3WJnU19CuY4-YwdHJPBWYm34_a_PU1qLOl3ec7HrtrfNHlf4ylew81_mQ1DmGIvcyWYgZHEi06aSNk9Z2iF7yPRBopYk7dnjWVuv-E3LaeFIMBH2A1OxhxXnRMWTIYdqdWEhLrReotPh0flEsJ1sPK8XCC4obUg5Od34GPzwMSlAcg/s1958/IMG_6271.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1958" data-original-width="1689" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjIsD8cAtvVPOGID3WJnU19CuY4-YwdHJPBWYm34_a_PU1qLOl3ec7HrtrfNHlf4ylew81_mQ1DmGIvcyWYgZHEi06aSNk9Z2iF7yPRBopYk7dnjWVuv-E3LaeFIMBH2A1OxhxXnRMWTIYdqdWEhLrReotPh0flEsJ1sPK8XCC4obUg5Od34GPzwMSlAcg/w345-h400/IMG_6271.JPG" width="345" /></a></div><br /><p><br /></p><p>比如明知道很壯觀卻一直沒機會看的 NGC 5128:</p><div class="separator" style="clear: both; text-align: center;"><br /></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEglwBQNBqu3nA_T2DfBHe_7upTub7t7EFJ4yXceVB3mhc_Fl3Rh34ABKlOyFqKGX4bI-oSmZukgEPOBL_ixoLCG4Is1-niMWXYRFb2fPDBUi-95O5rLfsa6QAHLa1Xoa41ZKs9PmhQyS2lvgYKEdcyT86qCiN8-gALmckX3pXLvY9-4HwoJZhnw3163ens/s2135/IMG_5452.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2135" data-original-width="2135" height="320" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEglwBQNBqu3nA_T2DfBHe_7upTub7t7EFJ4yXceVB3mhc_Fl3Rh34ABKlOyFqKGX4bI-oSmZukgEPOBL_ixoLCG4Is1-niMWXYRFb2fPDBUi-95O5rLfsa6QAHLa1Xoa41ZKs9PmhQyS2lvgYKEdcyT86qCiN8-gALmckX3pXLvY9-4HwoJZhnw3163ens/s320/IMG_5452.JPG" width="320" /></a></div><div><br /></div><div><br /></div><div>還有海鷗頭 Gum 1 的暗帶及細節:</div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjm2CQjTbBpgSJV9eVJhH9yMJ-p_9gXeFolXMAV_nJgkD2uGW5LrFV51SCSvUjJCZtpft_geBEuc3NZ_Ek1s5J643_iDqBm4lYkwI3qn4I5H9gXJMatBbE9TVWHNl7ti5AHl8spbm1004N2lqi58z30KzIO2AOhW6HQtjrXI4BUfuVHifIfnnGip2Wn660/s2302/IMG_5072.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2302" data-original-width="2302" height="320" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjm2CQjTbBpgSJV9eVJhH9yMJ-p_9gXeFolXMAV_nJgkD2uGW5LrFV51SCSvUjJCZtpft_geBEuc3NZ_Ek1s5J643_iDqBm4lYkwI3qn4I5H9gXJMatBbE9TVWHNl7ti5AHl8spbm1004N2lqi58z30KzIO2AOhW6HQtjrXI4BUfuVHifIfnnGip2Wn660/s320/IMG_5072.JPG" width="320" /></a></div><br /><p><br /></p><p>除此之外,今年還發憤把以前亂七八糟丟進相簿的一堆素描... 可能有幾百張吧? 不知道有沒有上千? 全部重新分類,檔案命名後放在 Google 雲端硬碟以便利查詢:</p><p><a href="https://drive.google.com/drive/folders/1SAGEwIGb6H_m_ihfTAb0hZxuZHF7ffzy?usp=drive_link">Shared astronomy sketch</a></p><p>做這件事真是去掉半條命,眼睛都快瞎了~</p><p><br /></p><p>還去了鳥取,拜訪神人 松本龍郎大師:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj7LRXk2qwALAUFvI-hFa-Aq23YJfsuVnFB2gm1VhUKSn5lQT3M3yMaGPbD2_cm1utxsGqkhTC_uZV87sC5xCgzelxTF8njJRwU3v4z37-xZERnZ21heCDjN-s2QMnyi1gEAygzoUXA_jHfu_IUerwL4Dtlb6kBXveR8bgWJytzh37E0xe__yNV0z9bBRQ/s4032/IMG_6008.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="4032" data-original-width="3024" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj7LRXk2qwALAUFvI-hFa-Aq23YJfsuVnFB2gm1VhUKSn5lQT3M3yMaGPbD2_cm1utxsGqkhTC_uZV87sC5xCgzelxTF8njJRwU3v4z37-xZERnZ21heCDjN-s2QMnyi1gEAygzoUXA_jHfu_IUerwL4Dtlb6kBXveR8bgWJytzh37E0xe__yNV0z9bBRQ/w300-h400/IMG_6008.HEIC" width="300" /></a></div><br /><p><br /></p><p>還有還有... 改造了 FC-76 松本雙筒、請廠長研究了一堆小東西,還認識了即將搬家到東京工作 Kenji 桑 -- 不斷誘拐我買東西的壞朋友 XD,哈哈~ 還有阿勇當爸爸了,小 baby 好可愛 ~ 超久沒聯絡的瑞森又連絡上了,國王買了 TEC 180 真想過去摸摸,福聲的 18" 換裝超人結構、星夜兄拿到夢寐以求的 WX 10X 50mm,甘醫生整年都在日本玩的樣子...... 而且 我提起勇氣去考 N3,只是不知道會不會過啦^^",最近還能背完松田聖子的 sweet memory、青い珊瑚礁,還有菅田將暉的 虹...... 這樣出發上山時,是不是可以學電影 すずめの戸締まり 裏開車兜風時 芹澤唱歌的模樣了?</p><p><br /></p><p>2023 有一堆不如意的事,不過也有許多不錯的事,希望明年也很精采呀 !!</p><p><br /></p><p><br /></p>s00639http://www.blogger.com/profile/08382086616742866311noreply@blogger.com4tag:blogger.com,1999:blog-7477593545230087753.post-41669697047712378582023-12-01T17:49:00.010+08:002023-12-01T17:49:59.157+08:00市區曬衣陽台的木衛凌觀察記錄<p>市中心住家的觀星目標,除了行星月面外的好選擇不多,而且市區家的陽台淺,大部分鏡種都不好操作,若要兼顧到觀察品質,Mewlon-180/210 以及 8~10 公分的短焦雙筒應該是最適合的工具。不過前陣子發現,今年夏末起的木星出現位置恰好可以從較為寬敞的 洗/晾衣間看見,除了冷氣室外機在這可能造成的氣流影響外,這邊還真是個看星星的好地方。</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEggFbS_3y6cktpz8BwdzkoOL-QY_GfRESvfaYYY5X7vyGz3gi8dx9rkUJQYAR21hzvWvTcvogWqANFTpR4SdlAPrSr9JIIXogqLYVMr2LgpYdZsJOO90W7wbX2m29PRe_QMCDq8f451o4bO3B-Z305Gw6ihMWf6FsWIakpduix2crKMdwTgMGJU-Ejju34/s1189/E8F211B7-1CDF-4608-B485-9D6F20F25A67-40616-000005CC72F545B1.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="961" data-original-width="1189" height="324" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEggFbS_3y6cktpz8BwdzkoOL-QY_GfRESvfaYYY5X7vyGz3gi8dx9rkUJQYAR21hzvWvTcvogWqANFTpR4SdlAPrSr9JIIXogqLYVMr2LgpYdZsJOO90W7wbX2m29PRe_QMCDq8f451o4bO3B-Z305Gw6ihMWf6FsWIakpduix2crKMdwTgMGJU-Ejju34/w400-h324/E8F211B7-1CDF-4608-B485-9D6F20F25A67-40616-000005CC72F545B1.jpg" width="400" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgcvghKjnQK5pOvHoypQvnl-IugNAWBL6Xx7C3PFTlj5WT_1hqABl9n4zJv2rUDvnJz67cnn7d1qxXJr3JxviqeiM9VAu8FWJ3hinGgW7QYNNpfdgE3zeyLZT71eU74UDmX_3DyGNne66-CuL9msO66f0unhKhwHNA7ab4gpzsv4RKx_-RYNSLNsauj3tg/s1776/9532ECF5-3E27-428A-9CCD-69962741E310-40616-000005CC53FCD85D.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1184" data-original-width="1776" height="266" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgcvghKjnQK5pOvHoypQvnl-IugNAWBL6Xx7C3PFTlj5WT_1hqABl9n4zJv2rUDvnJz67cnn7d1qxXJr3JxviqeiM9VAu8FWJ3hinGgW7QYNNpfdgE3zeyLZT71eU74UDmX_3DyGNne66-CuL9msO66f0unhKhwHNA7ab4gpzsv4RKx_-RYNSLNsauj3tg/w400-h266/9532ECF5-3E27-428A-9CCD-69962741E310-40616-000005CC53FCD85D.jpg" width="400" /></a></div><br /><p><br /></p><p>不過畢竟就是在艱困的環境下觀察,而且也沒辦法等木星爬太高 -- 因為會被窗框擋住,因此有機會看到就謝天謝地了。今年不知道為什麼常常架鏡子就碰到木衛凌:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjhE4zAJ0bKEvznFuRRBO0Nk_aB0i96m-XAffUyKd-OjoMHOUyqktRnWQsN0_cHowXI-vpYmq_xUX_hncCjS4PXSWC5d0pJjdUvavPkBPJhjL3KvBwNxfWtlxkpDCh0NrJlI7QxwWRXtljxhYXtenzCwXuXMcdE5LPqWcRDRTzaiJyL6fDnVn-W0OSZw7E/s1705/IMG_6270.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1679" data-original-width="1705" height="394" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjhE4zAJ0bKEvznFuRRBO0Nk_aB0i96m-XAffUyKd-OjoMHOUyqktRnWQsN0_cHowXI-vpYmq_xUX_hncCjS4PXSWC5d0pJjdUvavPkBPJhjL3KvBwNxfWtlxkpDCh0NrJlI7QxwWRXtljxhYXtenzCwXuXMcdE5LPqWcRDRTzaiJyL6fDnVn-W0OSZw7E/w400-h394/IMG_6270.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">IO transit (CFF 160 f/6.5; 216X ~ 300X; #12 yellow)</td></tr></tbody></table><br /><p>這張是在關西屋頂看的,不過 seeing 實在太糟,IO 本體雖在暗帶 SEB 上,不過認得很痛苦</p><p><br /></p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjQWhEDq42fG5LBQqNEL3wrP8MHsiL2N2RvQxegsEtgH4QXWIS6csrWEOfxbWGbhCY8TEvu598bw1ReTvxD4jAlnPZ_Xua58BGrdjrAQFJVb0x1YlVJdsNB6QAXBOC7uJyRUQ22rwy8Yt1GNZ9uICGXNy6nOyahgqNv53MAkGOFuPPRrSkenMh1oU-gY88/s1051/IMG_6377.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="956" data-original-width="1051" height="364" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjQWhEDq42fG5LBQqNEL3wrP8MHsiL2N2RvQxegsEtgH4QXWIS6csrWEOfxbWGbhCY8TEvu598bw1ReTvxD4jAlnPZ_Xua58BGrdjrAQFJVb0x1YlVJdsNB6QAXBOC7uJyRUQ22rwy8Yt1GNZ9uICGXNy6nOyahgqNv53MAkGOFuPPRrSkenMh1oU-gY88/w400-h364/IMG_6377.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">IO and shadow transit (FC-100 DZ f/8; 200X ~ 300X; #12 yellow)</td></tr></tbody></table><br /><p>這是第一次在市區曬衣陽台 看/畫 的木星,IO 的投影當然容易,IO 本體同樣在 SEB,不過這次是從 IO 一凌進就開始盯著看,所以還能追著看到一段距離。感覺 SEB 夠暗了,應該要輕易對比出 IO 本體才對,可是沒有,反而是感覺 "還好" 而已的邊緣暗很容易的襯托出 IO 本體。這次觀察最驚豔的是能看出呈現 橫軸長的橢圓形,因為 IO 的南北兩極都比較暗,因此不管是目視或攝影都常常會誤認它是橫躺的橢圓形;只是沒想到 4 吋鏡 2、300X 就能認出!</p><p><br /></p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg9i4t8F65rVsCF4gwhfvppq0z7U5Fr6106l-NN9b1cBbvMYhAG1j0uAEML55jLaCar_lvEPoVV4PoEpNu092eGDWemUOvc7a8VVJowjUZ7H8-SxnjnCQnurFAc6NwE3fP-YsJwfYQqEN5K8U-ae8CVf1ocAv3rE39biD0xBZTKsp7KYw_AANoV-t_qoWU/s1705/IMG_6500.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1705" data-original-width="1705" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg9i4t8F65rVsCF4gwhfvppq0z7U5Fr6106l-NN9b1cBbvMYhAG1j0uAEML55jLaCar_lvEPoVV4PoEpNu092eGDWemUOvc7a8VVJowjUZ7H8-SxnjnCQnurFAc6NwE3fP-YsJwfYQqEN5K8U-ae8CVf1ocAv3rE39biD0xBZTKsp7KYw_AANoV-t_qoWU/w400-h400/IMG_6500.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">IO and shadow transit (FC-76 Matsumoto Binoscope; 190X)<br /></td></tr></tbody></table><br /><p>這次嘗試用 3 吋松本雙筒,倍率大概只能拉到 190X,不過細節還不少,南半球的幾條小帶都能分出來,大紅斑只能看出糊糊一團,IO 投影很清楚,本體看不見,其實 festoon 還看得頗仔細的</p><p><br /></p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjI7BDIm4rXPkkSlsiIt1RthwOmk14F4QgKucPSyFWBYBnikvXNa0XnoMhROXXfVjdVU0Mrdw9GepHJNHpAcKKmlBC9wmbyBFUNiRxcuczb18dpVeY-3q1Sv5wzP9CF0QzMRBp5zA_9dOKvIPvMQbaNb07JTvMt7qHPG8pW8nfntZWmzHh1MZ8xQg_uHvE/s1607/IMG_6506.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1607" data-original-width="1607" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjI7BDIm4rXPkkSlsiIt1RthwOmk14F4QgKucPSyFWBYBnikvXNa0XnoMhROXXfVjdVU0Mrdw9GepHJNHpAcKKmlBC9wmbyBFUNiRxcuczb18dpVeY-3q1Sv5wzP9CF0QzMRBp5zA_9dOKvIPvMQbaNb07JTvMt7qHPG8pW8nfntZWmzHh1MZ8xQg_uHvE/w400-h400/IMG_6506.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">IO and shadow transit (FC-76 Matsumoto Binoscope; 190X)</td></tr></tbody></table><br /><p>這張圖其實跟上張是一樣的觀察,只是覺得最近畫木星都畫得太誇張了,festoon 沒那麼大條,投影也沒那麼大顆,NEB 北緣的氣流之前也畫得太大了,所以重畫了一張... 我是覺得蠻貼近原來的觀察啦</p><br /><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjkQ_apFkJnalYvB6atIIO70HQnPlpHjFOd64KmiErad7K5lxIDoGVLLNwhRHV2a2KGfs2IfZ5boYxKSOuLOVawIhMI4OPwXGoQ6wVd0MFt_f3wJEdfqNzZmy-mujK4k9yzayXOYGPotKOtJfY9K6sBpImgR3TQga5l1og85MeM0iXsxVEcAPO-OQhBTKQ/s1602/IMG_6590.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1602" data-original-width="1602" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjkQ_apFkJnalYvB6atIIO70HQnPlpHjFOd64KmiErad7K5lxIDoGVLLNwhRHV2a2KGfs2IfZ5boYxKSOuLOVawIhMI4OPwXGoQ6wVd0MFt_f3wJEdfqNzZmy-mujK4k9yzayXOYGPotKOtJfY9K6sBpImgR3TQga5l1og85MeM0iXsxVEcAPO-OQhBTKQ/w400-h400/IMG_6590.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Europa and shadow transit (Mewlon 210 f/11; 242X; #12 yellow)</td></tr></tbody></table><br /><p>曬衣陽台還不錯,後來乾脆就把 Mewlon-210 搬過去,當然細節又更豐富了;這次是難得的 Europa 與其投影凌,位置在南半球下方較暗的區域,同樣也是從凌進時就一路追蹤,不然應該很難認得出本體;NEB 氣流相當混亂,我把能看到的特徵都盡量畫出來。</p><p><br /></p><p><br /></p><p><br /><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgsiWKkYCx59zElg9PEeO6vJExy2Q5CHWPVd8RyIyeOWZui5XmKAXaG_pEPycOEgw612ecLLRMtTMLPff9l4t6C5stkulf-x4tyCwbnVuHAAO9threchcs9tIEU41AyklZ1O69qCzl2doOjboqRFwZaTIM-1Qie-QMVve2yLYh9AU4yMrR9H78bfBnkuXA/s1363/IMG_6591.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1363" data-original-width="1363" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgsiWKkYCx59zElg9PEeO6vJExy2Q5CHWPVd8RyIyeOWZui5XmKAXaG_pEPycOEgw612ecLLRMtTMLPff9l4t6C5stkulf-x4tyCwbnVuHAAO9threchcs9tIEU41AyklZ1O69qCzl2doOjboqRFwZaTIM-1Qie-QMVve2yLYh9AU4yMrR9H78bfBnkuXA/w400-h400/IMG_6591.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">GRS transit (Mewlon-210 f/11; 335X; #12 yellow)</td></tr></tbody></table></p><p><br /></p><p>這張應該是今年最後一次畫木星了,seeing 難得不錯,是今年看大紅斑看得最仔細的一次;大紅斑的果核、果仁、果殼,都分得清清楚楚,南半球的混亂氣流也能一一追蹤畫好,能在市區 22 樓冷氣機室外機旁邊看到這種木星,已經非常甘願了。</p><p><br /></p>s00639http://www.blogger.com/profile/08382086616742866311noreply@blogger.com0tag:blogger.com,1999:blog-7477593545230087753.post-54371412208658341492023-11-28T15:54:00.009+08:002023-11-28T15:54:54.043+08:00仙后後背附近的幾個星團觀察記錄<p>秋夜星空天頂是大四角的飛馬,夏夜大三角雖仍占據一邊,但已偏西漸漸遠離;北東則是仙族盤據之處。望向此,視線逐漸轉向銀河核心的對面,看起來彎曲的銀河已不再如夏夜時光的燦爛模樣,天況很好時可以看出 "W" 形分布的仙后座正泡在秋銀河裏,不管看到的是獵戶旋臂還是視線穿過去的英仙旋臂,總是有豐富的疏散星團與各式樣的星雲。之前在這附近區域已經看過很多疏散星團了,因為大多位在更遠的英仙旋臂上,所以看起來都不是很驚人;有點小、星點暗、星點數量也不多,上週末又多看了幾個:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhViw9w9tGj0TJ4DcG5un1SQbcFAA_sTrPzRlVb8ZPlr0E97E_4k8i9m0C8CTVo9hxh2yc6kIUObgKU1ptRJ3t4nR6aOx6Vo_YrFZcqzOZSjKZX1tPhJ6AoeoyjnkqFzX62g3ijoW8kXNcGLSZ-irhDsENnEDBzlTs-08f3aBw5q9vOrmCwJecA-fvIC5o/s1285/IMG_6718.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1027" data-original-width="1285" height="512" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhViw9w9tGj0TJ4DcG5un1SQbcFAA_sTrPzRlVb8ZPlr0E97E_4k8i9m0C8CTVo9hxh2yc6kIUObgKU1ptRJ3t4nR6aOx6Vo_YrFZcqzOZSjKZX1tPhJ6AoeoyjnkqFzX62g3ijoW8kXNcGLSZ-irhDsENnEDBzlTs-08f3aBw5q9vOrmCwJecA-fvIC5o/w640-h512/IMG_6718.jpg" width="640" /></a></div><br /><p><br /></p><p>用電子星圖標示一下: 黃色字是這次看的,綠色是以前看過的,紅色則是還沒看過的。</p><p><br /></p><p>首先是 NGC 225,網路上不少人給它一個別名叫風帆星團 (sailboard cluster):</p><div class="separator" style="clear: both; text-align: center;"><br /></div><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhFDSa4psrZtdcm0_VcdzMyNOQ4evE6hUwlqcG77kVtQOBG2QDGva0eXhB7hskCUJx2En3uNpXh5hSBwpAD0wKVsNPls6vAQBi9qgkioAkm9X1VEYda9q7Vj6DGfAawbNzz7GvYaftk_rlo2h0N29u1QrHhVgi5oDqE5SrxoVi9MVVQ6AwMKF3CgpMVPWE/s1347/IMG_6710.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1346" data-original-width="1347" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhFDSa4psrZtdcm0_VcdzMyNOQ4evE6hUwlqcG77kVtQOBG2QDGva0eXhB7hskCUJx2En3uNpXh5hSBwpAD0wKVsNPls6vAQBi9qgkioAkm9X1VEYda9q7Vj6DGfAawbNzz7GvYaftk_rlo2h0N29u1QrHhVgi5oDqE5SrxoVi9MVVQ6AwMKF3CgpMVPWE/w400-h400/IMG_6710.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 225 (Mewlon-210 f/11.5; 6mm Ethos for 403X)</td></tr></tbody></table><br /><p><br /></p><p>把上圖順時針轉 90 度的話,大約西方朝上東方向下,星點分布形狀是有點像風帆啦。</p><p>Seeing 不佳,高倍看去每顆星星都扭來扭去的,8 吋鏡平地勉強可以到 13 等出頭亮的星點,比較亮的星點排列堆成三角形的模樣。NGC 225 很年輕,查到的資料説大約 1000 萬歲左右,是我們銀河內最年輕的一代星團;天文相片如果把視野拉大一些,可以發現其東側有一團反射星雲,目錄編號是 vdB 4,再往東還有一團暗星雲,整個廣角畫面還蠻熱鬧的。</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhK7eD4C5JsbMPDos1p1OVb2SBJiwh0GZi77gd9C9rL4hSnRob4wzpf3XmODFx1AOWTpZ1b2kWYNMofiuN38slnFDUhCuwBTcj25oZGSm2-eRGNcpCzT7TBDEewRwhwJvSyovoWHZUAmUSU8TQLGrUO4sK50zSaXbmFg6odgw5SoIp_ORsreXnQLAiVMSQ/s1100/NGC225HunterWilson.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="828" data-original-width="1100" height="301" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhK7eD4C5JsbMPDos1p1OVb2SBJiwh0GZi77gd9C9rL4hSnRob4wzpf3XmODFx1AOWTpZ1b2kWYNMofiuN38slnFDUhCuwBTcj25oZGSm2-eRGNcpCzT7TBDEewRwhwJvSyovoWHZUAmUSU8TQLGrUO4sK50zSaXbmFg6odgw5SoIp_ORsreXnQLAiVMSQ/w400-h301/NGC225HunterWilson.jpg" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;"><a href="https://images.app.goo.gl/74HdGaWBRRpZyv8e6">data from: Wikipedia</a></td></tr></tbody></table><br /><p><br /></p><p>NGC 225 西側 0.5 度而已是另一個疏散星團 Stock 24:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjMceplMbGy241WYrSWquzzb_LNNW4Rj1wx0nuQW5bRth2U2XVIyPHz-NdUqikdDLDQ6nGi0syNa7vmnbQ2unMGt3Gdy2GPma9e0iZb5RLTceHBovaf8XK2u0JqwJpTGrxv3Jc_9p7-_Baxl95PukGzFyR45s_-mTnJFELACJFP5yOw4BFZSujRDl6BifQ/s1701/IMG_6711.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1701" data-original-width="1701" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjMceplMbGy241WYrSWquzzb_LNNW4Rj1wx0nuQW5bRth2U2XVIyPHz-NdUqikdDLDQ6nGi0syNa7vmnbQ2unMGt3Gdy2GPma9e0iZb5RLTceHBovaf8XK2u0JqwJpTGrxv3Jc_9p7-_Baxl95PukGzFyR45s_-mTnJFELACJFP5yOw4BFZSujRDl6BifQ/w400-h400/IMG_6711.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;"> Stock 24 (Mewlon-210 f/11.5; 6mm Ethos for 403X)</td></tr></tbody></table><br /><p><br /></p><p>Stock 24 平地 8 吋鏡數不到幾顆星,不過有兩組雙星頗引人注意,一組上圖中央偏上一點點的 LAM 1,另一組在畫面左下角的 STI 110:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgmE4dYzMSxIds8Yhjc7ACfLfJkMEr1vUn_qck-uZAzvcGMVzuc1W156FMSw_2XxhdK0GrnSGfHg62D2jy5wyDR644rbdMLKO-ol_n6V-dma3SPibd8NLXe6_K_vdO3BVl-G_I6RM_P-rwl_xx47y4lR3PioxwzZbg5NYMc9bUp4fhnb2JzOOP9cn9Ehqg/s1318/IMG_6726.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1149" data-original-width="1318" height="349" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgmE4dYzMSxIds8Yhjc7ACfLfJkMEr1vUn_qck-uZAzvcGMVzuc1W156FMSw_2XxhdK0GrnSGfHg62D2jy5wyDR644rbdMLKO-ol_n6V-dma3SPibd8NLXe6_K_vdO3BVl-G_I6RM_P-rwl_xx47y4lR3PioxwzZbg5NYMc9bUp4fhnb2JzOOP9cn9Ehqg/w400-h349/IMG_6726.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">ADS 552, ADS 544 in Stock 24 (CFF 160 f/6.5; 4.7mm Ethos + 2X barlow for 443X)</td></tr></tbody></table><br /><p><br /></p><p>用 Mewlon 210 看的時候我沒注意到 LAM 1 其實有三顆星,隔幾天有機會時用 CFF 160 才拆開這三顆,seeing 不佳,三顆晃啊晃的並不是拆很乾淨。電子星圖的資料怪怪的,亮度與距離都對不到,而且這麼冷門的目標當然也查不到資料,我自己常查的網路資料庫 <a href="https://www.stelledoppie.it/index2.php?section=2">Stelle Doppie</a> 有 2015 年的觀測資料:</p><p>AB: +12.4, +12.65; SEP: 5.7"; PA:177</p><p>AC: +12.4, +11.6; SEP: 10.6"; PA: 183</p><p>BC: +12.65, +11.6; SEP: 4.9"; PA: 189</p><p>如果我拆的三顆是對的話,A、B、C 亮度差不多對,距離也差不多對,PA 也合得到。</p><p><br /></p><p>STI 110 在 <a href="https://www.stelledoppie.it/index2.php?section=2">Stelle Doppie</a> 資料 (2018) 是:</p><p>AB: +10.84, +12.2, SEP: 7.31"; PA: 5.7</p><p>距離、PA 跟實際看到的差不多,但 B 星亮度我覺得大約在 +13.2~3 左右,不可能有 +12.2 這麼亮... 還是我誤會了什麼?</p><p><br /></p><p><br /></p><p>下一個看的是 NGC 189:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEij7GiK1X44Ccsy48k45TKWTayrs6tF8oNeBdJnkDZTAcddhJ-S2mT1N7Zix9sTebk80xK2xm_yJu-k6zhElXxLhuX9ngDmqlYdpe27TZlYkb84uER0eOGYjXiVKhapuidQKUiSG6bXwOLFsaNu8tx05Joagn5oI3qmrNU_yOI0xsQYu48m60DpptVZoEo/s2381/IMG_6713.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2381" data-original-width="2381" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEij7GiK1X44Ccsy48k45TKWTayrs6tF8oNeBdJnkDZTAcddhJ-S2mT1N7Zix9sTebk80xK2xm_yJu-k6zhElXxLhuX9ngDmqlYdpe27TZlYkb84uER0eOGYjXiVKhapuidQKUiSG6bXwOLFsaNu8tx05Joagn5oI3qmrNU_yOI0xsQYu48m60DpptVZoEo/w400-h400/IMG_6713.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 189 (Mewlon-210 f/11.5; 6mm Ethos for 403X)<br /></td></tr></tbody></table><br /><p><br /></p><p>上圖中上方 2/3 面積的才是 NGC 189,下面 1/3 的是其它星點。根據電子星圖 Skysafari 資料,整體亮度跟前面那個 Stock 24 一樣是 +8.8 等,不過實際看到的星點很多,比 Stock 24 多太多了;星點分佈鬆散,外觀也不規則,有條星鏈向西方延伸分佈。</p><p><br /></p><p>再往西走還有一個 NGC 103:</p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi-dIj2zanuAraZgywFcyLRsS2uEahreHjeO07fCFehJ-NTAAW3rhYtg0K6cqRzuM5nl8ZFwGXlUWaYhjCn0LGdocoFPNOb_GiQc3h2lYzKApZzQR6Q2n-W2WL9NiWo6f9f2yMF5bWgCYCjJL4l-G9k_6UBpmehQWoUMuLC5aaa2hjBqLjd-N-iVPmrkXc/s2350/IMG_6714.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2350" data-original-width="2350" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi-dIj2zanuAraZgywFcyLRsS2uEahreHjeO07fCFehJ-NTAAW3rhYtg0K6cqRzuM5nl8ZFwGXlUWaYhjCn0LGdocoFPNOb_GiQc3h2lYzKApZzQR6Q2n-W2WL9NiWo6f9f2yMF5bWgCYCjJL4l-G9k_6UBpmehQWoUMuLC5aaa2hjBqLjd-N-iVPmrkXc/w400-h400/IMG_6714.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 103 (Mewlon-210 f/11.5; 6mm Ethos for 403X)<br /></td></tr></tbody></table><br /><p><br /></p><p>實在是看不到幾顆星,Skysafari 的資料是 +9.8 等,疏散星團整合起來才將近 +10 等,想必在平地觀察沒什麼看頭,的確,只有 東北--西南 向一條星鏈比較好辨識而已。不過對攝影者來說,其西北側有個別名鬼臉星雲的 Sh 2-173,一起入鏡畫面還蠻有趣的。</p><p><br /></p><p>最後一個是星系,距離仙后座 Beta 星 1.5 度左右而已的不規則星系 IC 10:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiBmcuKm3KG0C4UQy7w7VywyZS6DEv-AN0hHMb4z-y4SRZ-T-29JeG_OE8O5m812iJ5dATmkOrt4-KVecrse2omaXk-srp5q-f1s7YCobPUVkOzTreJ4rtJkho9xQ_kH9LzIWVAXGhatVlwlau6uZJJELO9JEft_wr2XEsI36xm3JJu3ugGCzxKA7zPAO8/s2610/IMG_6715.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2610" data-original-width="2610" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiBmcuKm3KG0C4UQy7w7VywyZS6DEv-AN0hHMb4z-y4SRZ-T-29JeG_OE8O5m812iJ5dATmkOrt4-KVecrse2omaXk-srp5q-f1s7YCobPUVkOzTreJ4rtJkho9xQ_kH9LzIWVAXGhatVlwlau6uZJJELO9JEft_wr2XEsI36xm3JJu3ugGCzxKA7zPAO8/w400-h400/IMG_6715.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">IC 10 (Mewlon-210 f/11.5; 6mm Ethos for 403X)<br /></td></tr></tbody></table><br /><p>這個目標看得很沒信心,得用 averted vision 才能察覺,403X 放大下看起來面積還蠻大的,星雲中間有顆 +12.7 等的星星,我覺得圍繞著它,及其上方 (東南方) 的雲氣比較明顯。雖然看得不是很清楚,不過覺得似乎也沒那麼困難,改天用大隻的或天況好時應該可以看更清楚。</p><p><br /></p><p><br /></p><p>還漏了一個一開始熱機時看的 NGC 743:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh0FVHjq_Zx2qSJbVMhtGt8W2FPYiEG4qu1-v5IoTiHdz0kPvHRprSQROLwMHbgBpdYZmPrXMdYCW71KqO82ShOyWw0Ai3BCDLd5v8WcQb0bybwG8Z3Qshme-0il0sVi4a6j2P63A26SHZYdUDHk217kKYNZdFF45P2q-JNhI-SYATygi0jE9PFmEyi0gc/s1290/IMG_6709.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1287" data-original-width="1290" height="399" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh0FVHjq_Zx2qSJbVMhtGt8W2FPYiEG4qu1-v5IoTiHdz0kPvHRprSQROLwMHbgBpdYZmPrXMdYCW71KqO82ShOyWw0Ai3BCDLd5v8WcQb0bybwG8Z3Qshme-0il0sVi4a6j2P63A26SHZYdUDHk217kKYNZdFF45P2q-JNhI-SYATygi0jE9PFmEyi0gc/w400-h399/IMG_6709.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 743 (Mewlon-210 f/11.5; 6mm Ethos for 403X)<br /></td></tr></tbody></table><br /><p>下面那條稍斜上的幾顆亮星不是此星團成員,上面那團三角形 +12.X 的幾顆在這邊聚集還算明顯,也有幾顆 +13.X 的勉強認得出來,不過整體就是像這一帶典型看到的,位在下一條的英仙旋臂的星團,又小、又暗、星點也少,沒什麼看頭的模樣。</p><p><br /></p>s00639http://www.blogger.com/profile/08382086616742866311noreply@blogger.com0tag:blogger.com,1999:blog-7477593545230087753.post-63798120232040641762023-11-09T17:00:00.003+08:002023-11-09T17:00:37.181+08:00再畫 WR134, 小行星狀星雲 NGC 6778 與 小小 IC 5117, 以及 NGC 7448 group 的幾個星系<p>去年跟今年的觀星次數大減.... 天氣有點關係,搬進市區也有關係,工作、家庭... 的變化都有點關係;不過觀星帶來的樂趣還是一樣,平常同樣喜歡看雜誌的觀察分享文章,查查資料,有機會就架設備,觀察、畫圖,然後找時間寫紀錄... 雖然這一兩年真的比較沒時間寫,好像也沒那麼常在追新目標了。做紀錄時,希望能盡量圍繞某個主題寫,這樣比較像篇 "文章",但常常都東一個西一個隨興而看,事後要把這些目標湊在一起也不一定做得到,但不做紀錄也不行.... 可能要想個較方便的紀錄方式了,不然老是欠這麼久才寫,當時觀察的細節都忘掉一大堆了。</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjLuRjzxtf0NhyfCL2KrWyYeJdEIQS8buvsaSFz3ojaFuEyIPC5FQrtd3zR8G4c1is_Soyiimz771-g75kDGC8vTcvmG8vXFn3qXRI2hiT4nOEyVZX8aus8aM45mb3HFAXJons1QxcRUnCXIZYB_hMROOuVkFTnGYxUuha5CCqDBtuoQpK6idDE4AqNNcU/s3024/IMG_6262.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3024" data-original-width="3024" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjLuRjzxtf0NhyfCL2KrWyYeJdEIQS8buvsaSFz3ojaFuEyIPC5FQrtd3zR8G4c1is_Soyiimz771-g75kDGC8vTcvmG8vXFn3qXRI2hiT4nOEyVZX8aus8aM45mb3HFAXJons1QxcRUnCXIZYB_hMROOuVkFTnGYxUuha5CCqDBtuoQpK6idDE4AqNNcU/w400-h400/IMG_6262.HEIC" width="400" /></a></div><br /><p><br /></p><p><br /></p><p>WR134 星雲列在我 Skysafari 觀察清單裏的 "WR Nebula" 目錄,裏面還有 4 個: 雷神頭盔 NGC 2359、海豚泡泡 Sh 2-308、弦月星雲 NGC 6888 (WR 136 星)、WR 135 (HD 192103)。前三個都不算難,而最後那個 WR 135 則是太難,怎麼看都看不到.... 或說一堆雲氣裏分不出來。倒是 WR 134 我覺得是個好目標,因為難,卻又做得到,所以很有挑戰性;雖然之前看過好幾次,但有畫的卻只有一次,而且畫不好,總覺得太強調主體,所以跟實際看的感覺差太多,也因此一直找機會想重新畫過,這次終於下定決心重畫了:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEirwRcuNzPVLJ6-p1OizswuAm7zzH5L4jUWutz6VQfRZmdsJb_6awObziC1RUnWpN_4gCGdEv0GNIxFtXr3_IFoSSYKgA9PH_UETZlE14bJkNhaS8z1iCLpzHuNo1mGu9Qbs8yXElfD2Je5WE5XaoURcZObG7ozLG_5qmaE8up4Pdrco7tiC9p1aU4xE-U/s1958/IMG_6271.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1958" data-original-width="1689" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEirwRcuNzPVLJ6-p1OizswuAm7zzH5L4jUWutz6VQfRZmdsJb_6awObziC1RUnWpN_4gCGdEv0GNIxFtXr3_IFoSSYKgA9PH_UETZlE14bJkNhaS8z1iCLpzHuNo1mGu9Qbs8yXElfD2Je5WE5XaoURcZObG7ozLG_5qmaE8up4Pdrco7tiC9p1aU4xE-U/w345-h400/IMG_6271.JPG" width="345" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">WR 134 nebula and WR star V1769 Cygni (CFF160 f/6.5; 104X; O III)</td></tr></tbody></table><br /><p><br /></p><p>如果舉大家可能比較熟悉的目標來比較難度的話,我覺得比西面紗難,大概跟皮克林三角 (現在都要鼓吹改叫 威廉敏娜·弗萊明 三角 -- Fleming triangle 了 ^^") 比較明顯的部分差不多,長條狀帶著內朝東的弧度,長條外 (西)側雲氣稍濃一些,南北兩端淡去,分不出確切的邊界 -- 結果這次還是把主體畫太明顯了.... 唉。</p><p><br /></p><p><br /></p><p>另外還有畫了兩個行星狀星雲。同樣靠適當的濾鏡,再加上累積的一點點經驗,可以讓我們這些深陷住宅區光害下,卻又喜歡找深空目標的同好們解解饞的目標類型就是 行星狀星雲了,許多紙面資料上亮度只有 11.X ~ 12.X 的目標都很有機會達陣。天鷹座範圍內像有永遠撈不完的行星狀星雲的樣子,這次撈了 NGC 6778,位在老鷹尾巴接近盾牌座的地方。資料上説: 視覺亮度 +12.3,大小約 0.26 arcmin,可能不到 M57 的 1/3 大小,比起熟悉的 NGC 2392 愛斯基摩星雲還小一半:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjhkeRL5Zu7Uxm-6IA6LMKe1PV4NHfUNhCBDrI5l3D2X1BlGPLPkUJOOrNGyRo7ZeAalkc0-bTaqO7QGej4CVFU-xbTyOz_D33sT1TBfiaNA-jiWYEaJyvDLoDiYg_V1sBPRSfVQ1ex2pFENiQ-w_IMS_ubwKU7Mh9dXz_1xOoeMY5-Do3ASHjenCVOHRg/s2216/IMG_6282.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2216" data-original-width="2216" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjhkeRL5Zu7Uxm-6IA6LMKe1PV4NHfUNhCBDrI5l3D2X1BlGPLPkUJOOrNGyRo7ZeAalkc0-bTaqO7QGej4CVFU-xbTyOz_D33sT1TBfiaNA-jiWYEaJyvDLoDiYg_V1sBPRSfVQ1ex2pFENiQ-w_IMS_ubwKU7Mh9dXz_1xOoeMY5-Do3ASHjenCVOHRg/w400-h400/IMG_6282.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 6778 (Mewlon-210, 240X, O III)</td></tr></tbody></table><br /><p>天況雖然沒很好,不過這目標不算難,加上濾鏡後 8 吋鏡拉到 240X 就可以分出東西向兩瓣,然後外圍還能看出有一圈淡淡的雲氣壟罩著。行星狀星雲能看到這種模樣就覺得很值得了。</p><p><br /></p><p>另外一顆超小顆的是 IC 5117,這顆是前面提到的 威廉敏娜·弗萊明 發現的... 我是看雜誌上 Steve Gottlieb 列出 威廉敏娜·弗萊明 發現的行星狀星雲有 IC 編號的,大部分之前都畫過,這顆沒有,所以補一下:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgW1vvg_rAGdOGHBU9TzGoGNdrBqaZ6xd9M5NsnSL92SyU0gP-jXeBCz3YFJIz-T70V-GOr06rPyOikJpeuTr7syMWicHicU6izCMuJJDRh_OcLOy_FGhTSEPJvCncYIvBgVr5TZSfSYj0GtyWb36HAZ_rCev9WcHT2PlXZADz7qHWv7oyzFTdZt5_mnuA/s2105/IMG_6272.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2105" data-original-width="1570" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgW1vvg_rAGdOGHBU9TzGoGNdrBqaZ6xd9M5NsnSL92SyU0gP-jXeBCz3YFJIz-T70V-GOr06rPyOikJpeuTr7syMWicHicU6izCMuJJDRh_OcLOy_FGhTSEPJvCncYIvBgVr5TZSfSYj0GtyWb36HAZ_rCev9WcHT2PlXZADz7qHWv7oyzFTdZt5_mnuA/w299-h400/IMG_6272.JPG" width="299" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">IC 5117 (CFF 160 f/6.5; 221X; O III)</td></tr></tbody></table><br /><p><br /></p><p>其實一點都不難啦! 用 O III 很容易區別出來,倒是尋星有點麻煩.... 位在星點很多的銀河裏,而且夾在天鵝屁股跟蠍虎座中間,如果沒用 GOTO,只能從天津四慢慢跳了。IC 5117 旁邊有顆 +9.9 等星,正好拿來當對比參考,沒用濾鏡的話,目標本身看起來就像顆比參考星更暗的星點而已,加上濾鏡後,參考星變暗,目標本身變得比它更亮,倍率夠高的話還能看出一點盤面.... 所以呢,這樣就能確認目標了。</p><p><br /></p><p><br /></p><p>接下來是星系了。</p><p>夏末秋初飛馬爬到正天頂,雙魚貼著,這附近有挖不完的星系。我先順著有 NGC 7331、小跳蚤、史蒂夫五重奏的飛馬的那隻前腳,頭 (大腿根)、尾 (馬蹄) 各有一個較亮 (+11, +10) 的星系系,+11 的是 NGC 7457:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhG8epBJ7QhtMxK-wCLnyZvD2tSU7QwudK3eOfxvBIWPm-y0CQnt6C133bt49_gRRI_V_OvMdz_dyzx48BG-C1n_07odH88fDQUay__VY5VvTCImp13g1Ve3F7QRGNKRzQpqvm8oKhFKaczn-deqm2YphnUY0bpv7l23BftuUWDuScZsSqzqmYnc4wX1ZI/s1967/IMG_6425.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1967" data-original-width="1967" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhG8epBJ7QhtMxK-wCLnyZvD2tSU7QwudK3eOfxvBIWPm-y0CQnt6C133bt49_gRRI_V_OvMdz_dyzx48BG-C1n_07odH88fDQUay__VY5VvTCImp13g1Ve3F7QRGNKRzQpqvm8oKhFKaczn-deqm2YphnUY0bpv7l23BftuUWDuScZsSqzqmYnc4wX1ZI/w400-h400/IMG_6425.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 7457 (406mm f/3.75 dobsonian; 250X)</td></tr></tbody></table><br /><p><br /></p><p>+11 的星系對 40 公分主鏡來說,即便在平地也是小菜一碟而已;長軸東西向,有點大的核心跟外圍的雲氣分得很清楚,NGC 7457 是沒有棒狀核心的透鏡星系,網路上的圖有些看起來核心有很明顯的一個圓點,不過我看不出來,大致上只有分兩層雲氣,外層的很淡。</p><p><br /></p><p><br /></p><p>馬蹄邊的是 +10 等的 NGC 7217:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhZj0n6Rp4ZWqy7EDaGnhavAltKgd0Yn7Vmj0ZkpQT_oWpRdudkwDjyq_pcQpX5pHSehHJrVlV2PzQixc7xG4xv0u_gvJ_KJkbCLShoyuL_Oat9r34mDO20JNYAhmcpcd1hxNU7yDfoMizXBHRGrtkXy2JQIgBcaCuAOZPjN-mCsHGl66nAbN-9UPZd5xo/s2589/IMG_6426.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2589" data-original-width="2589" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhZj0n6Rp4ZWqy7EDaGnhavAltKgd0Yn7Vmj0ZkpQT_oWpRdudkwDjyq_pcQpX5pHSehHJrVlV2PzQixc7xG4xv0u_gvJ_KJkbCLShoyuL_Oat9r34mDO20JNYAhmcpcd1hxNU7yDfoMizXBHRGrtkXy2JQIgBcaCuAOZPjN-mCsHGl66nAbN-9UPZd5xo/w400-h400/IMG_6426.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 7217 (406mm f/3.75 dobsonian; 390X)</td></tr></tbody></table><br /><p><br /></p><p>NGC 7217 也是個很有趣的星系值得放大來仔細看,核心很亮,而且我看得出外面的一圈環;如果有對照天文相片會發現其實有 3 道比較明顯的環喔。</p><p><br /></p><p><br /></p><p>最後就是 NGC 7448 這一群了,位在飛馬肩膀上所以還蠻好找的:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiRsX4_M3UrYSxrhAaUGizpOdxASvSYN-Dnb0dNSWgrQk0IWA9lJgA1ldkAxgQxTp4FKJoASB13_xrhZSDRmgCJXnn-epQaL3XWTPWcCWs2SxZpgcMZbU4JO7wOxiq7mPmqQv4Ah1JHyZ5M123m91r6BSfckmmRrHB8UY-qCcBu0NwHUcM9LADD6apYsk4/s2217/IMG_6427.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2217" data-original-width="1627" height="640" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiRsX4_M3UrYSxrhAaUGizpOdxASvSYN-Dnb0dNSWgrQk0IWA9lJgA1ldkAxgQxTp4FKJoASB13_xrhZSDRmgCJXnn-epQaL3XWTPWcCWs2SxZpgcMZbU4JO7wOxiq7mPmqQv4Ah1JHyZ5M123m91r6BSfckmmRrHB8UY-qCcBu0NwHUcM9LADD6apYsk4/w470-h640/IMG_6427.JPG" width="470" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 7448, 7454, 7468, 7463, 7465 (406mm f/3.75 dobsonian; 45X ~ 390X)</td></tr></tbody></table><br /><p><br /></p><p>這邊有一群星系,我先試著認附近的幾個 +11.X ~ +13.X 的,發現都看得到呀! 然後就決定把視野拉大一點先定好範圍,再一一拉高倍率把範圍內的星系找出來。</p><p><br /></p><p>NGC 7448 Group 主要的 6 個成員是指: NGC 7448、NGC 7463/64/65、UGC 12313、UGC 12321。後面那兩個 UGC 在 NGC 7463/7465 附近,都超過 +15 等,所以平地沒機會,NGC 7464 太小,貼在 NGC 7463 旁邊我也認不出來。NGC 7448 夠亮,很容易找到,橢圓外觀長軸 西北 -- 東南向;+12.6 等的 NGC 7465 比較緊緻也能一眼認出,旁邊橢圓形的 NGC 7463 +13.2 等,要有耐心一點才能分辨出來,長條的外觀、長軸的方向都可以認出。NGC 7454 最亮,有 +11.6 所以很好認,不過因為太小,所以也看不出什麼細節,頂多就分得出核心而已;NGC 7468 最暗,只有 +13.6,要看久一點才認出,不過用 40 公分主鏡沒問題啦!</p><p><br /></p><p>這邊星系真的不少,如果只是衝數量的話隨便都可以加一堆,下次還是先查多點資料,挑比較有看頭的來慢慢欣賞。</p>s00639http://www.blogger.com/profile/08382086616742866311noreply@blogger.com0tag:blogger.com,1999:blog-7477593545230087753.post-45253880998663732432023-11-07T14:28:00.001+08:002023-11-07T14:32:53.828+08:00久違的鳶峰觀星<p>上次去鳶峰已經是快三年前的冬天,隔這麼久,沿路景物都有些不同,鳶峰停車場的狗狗們不見了,倒是出現了隻不斷喵喵叫的貓咪,圓潤潤的有點可愛</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhEKMtwSEKLOhQQjZ6FmdGV4AlEqiEJscaEQAq_hyC5-xQ0CvCfl4qao2IwQeAXs6Ke0Ohz6dX3IJANWeaj1RqM5hc1fujqG8Vbb3b_un5vY6k_FmiNdE6yrxOjpNGO4B2E3VIW3kn0IcqSVvF2Kwvy_q63KHmRDJkwZyzrqPPVY6LjlJAtH1piKUkAor0/s2545/IMG_6595.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2545" data-original-width="2545" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhEKMtwSEKLOhQQjZ6FmdGV4AlEqiEJscaEQAq_hyC5-xQ0CvCfl4qao2IwQeAXs6Ke0Ohz6dX3IJANWeaj1RqM5hc1fujqG8Vbb3b_un5vY6k_FmiNdE6yrxOjpNGO4B2E3VIW3kn0IcqSVvF2Kwvy_q63KHmRDJkwZyzrqPPVY6LjlJAtH1piKUkAor0/w400-h400/IMG_6595.HEIC" width="400" /></a></div><br /><p>這三年不管是汶水、宇老、大雪山... 天況有好也有不好,就算極好,星空品質終究不能跟 2500 M 以上的高山比,夜幕降臨時,高山星空是那種感受得到壓迫力的。</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgNE5mxkWp_I9n7daMHWwBWWgwiYbNpJWhFbXFGPxzoibiZoZqGSLkdpY4JdyBdGQu_0Lz94iwzEPRFJ7koOLMq7x7X_0HgenoI87a_HJJ97ODAKFM9InV5vJRz-8KnA96MmUUJ7qFrH53ar8OCt_gGzscDYVgCqndwTzTYL1zqOZPo9f7rmk_5fax65iA/s1776/4D4F613E-5BE4-45C4-845B-DF9C25BA8E3F-71946-00001AA0DD1AA569.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1184" data-original-width="1776" height="266" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgNE5mxkWp_I9n7daMHWwBWWgwiYbNpJWhFbXFGPxzoibiZoZqGSLkdpY4JdyBdGQu_0Lz94iwzEPRFJ7koOLMq7x7X_0HgenoI87a_HJJ97ODAKFM9InV5vJRz-8KnA96MmUUJ7qFrH53ar8OCt_gGzscDYVgCqndwTzTYL1zqOZPo9f7rmk_5fax65iA/w400-h266/4D4F613E-5BE4-45C4-845B-DF9C25BA8E3F-71946-00001AA0DD1AA569.jpg" width="400" /></a></div><br /><p><br /></p><p>終於把 40 公分鏡帶上山了,這次沒打算追新目標,只想把幾個最近平地看得很辛苦的幾個目標確認一下。首先是兩個仙后座附近的 Abell 行星狀星雲,82 (ARO114) 跟 84 (ARO 115)。先複習一下平地看的結果:</p><p><br /></p><p>平地 Mewlon-210 看的 Abell 82:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgYNiWzdAHiF04lddTM7D5UjFn4tdcfu8tRluvUPbw_o8mXAlpLVO-Xbi8vEZMkh7mz2ik7R-KYPNSVXzB0ZL2Mcs8MSR8HOUZx6-iKCI1tzbeNMFnYB2PlHHo_EYfN93hVpp5YMltu8bxoQacq64kGyjlyiE3D5psTG3d0ugKLj9CcvPUcZnGvCWPHULI/s2204/IMG_6316.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2204" data-original-width="2204" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgYNiWzdAHiF04lddTM7D5UjFn4tdcfu8tRluvUPbw_o8mXAlpLVO-Xbi8vEZMkh7mz2ik7R-KYPNSVXzB0ZL2Mcs8MSR8HOUZx6-iKCI1tzbeNMFnYB2PlHHo_EYfN93hVpp5YMltu8bxoQacq64kGyjlyiE3D5psTG3d0ugKLj9CcvPUcZnGvCWPHULI/w400-h400/IMG_6316.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Abell 82 (Mewlon-210; 240X; O-III)</td></tr></tbody></table><br /><p><br /></p><p>這看得很心虛,得用 averted vision 才能察覺,不過因為事先查過資料,腦海有了暗示,因此看久之後,有時雲氣出現在右邊有時在左邊... 就會有環狀或兩瓣的感覺,其實相當沒信心。</p><p><br /></p><p>平地 40 公分反射鏡看的 Abell 82:</p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjM8THoEFyOD74_TJ9nVn1if0ahpN-F_IGFp4ohc5KJM-hO6PwGuCT_bDr2-uTlfUT8XEAIO8BXFFfaqwYi_iyGfb9anjrNOHVaxREGBGPdlHytsVkb8MYO4qWQ1Hzkb02GJpifRqu6f7DXyhISTIy71XcuaJCP6bOq4H6jJOWNu-xBURYjBwNPBy2MQZI/s2777/IMG_6483.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2777" data-original-width="2305" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjM8THoEFyOD74_TJ9nVn1if0ahpN-F_IGFp4ohc5KJM-hO6PwGuCT_bDr2-uTlfUT8XEAIO8BXFFfaqwYi_iyGfb9anjrNOHVaxREGBGPdlHytsVkb8MYO4qWQ1Hzkb02GJpifRqu6f7DXyhISTIy71XcuaJCP6bOq4H6jJOWNu-xBURYjBwNPBy2MQZI/w333-h400/IMG_6483.JPG" width="333" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Abell 82 (406mm f/3.75 dobsonian; 250X; UHC)</td></tr></tbody></table><br /><div class="separator" style="clear: both; text-align: center;"><br /></div>這次就 OK 了,但分不出環狀或兩瓣... 等特徵,大致就糊糊的一塊圓形,但可以持續直視。<br /><div class="separator" style="clear: both; text-align: center;"><br /></div><div><br /></div><div><br /></div>這是高山上 40 公分反射鏡看的 Abell 82:<br /><div class="separator" style="clear: both; text-align: center;"><br /></div><br /><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgUtBomZDs4Vn9l7hyRflawP8HjlkXbVl-DViymzF26dNHmc1e4eX4xJMvYxKTyw1w6DXDiFTjxl0bav9bqUpsLCe7XHq5XL7G0q0YDg6RmKAF7p-848KYWvoOnE0djowKNy08X8vDVQUig07JtUjxvDektkS551KDW5oCwCCYcgymP1kysakFKy6Ww30U/s1727/IMG_6632.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1727" data-original-width="1727" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgUtBomZDs4Vn9l7hyRflawP8HjlkXbVl-DViymzF26dNHmc1e4eX4xJMvYxKTyw1w6DXDiFTjxl0bav9bqUpsLCe7XHq5XL7G0q0YDg6RmKAF7p-848KYWvoOnE0djowKNy08X8vDVQUig07JtUjxvDektkS551KDW5oCwCCYcgymP1kysakFKy6Ww30U/w400-h400/IMG_6632.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Abell 82 (406mm f/3.75 dobsonian; 292X; UHC)</td></tr></tbody></table><br /><p><br /></p><p>終於看清楚目標啦! 目標右側三點鐘方向那顆 +11.3 星是指標星,星雲中間有兩顆星,一顆 +13.1, 另一顆 +14.9;+13.1 那顆星側堆滿雲氣,另外是 +11.3 等亮星跟 +14.9 等亮星之間堆著另一塊雲氣,看起來比另一塊大一點點、亮一點點... 有小啞鈴的樣子。</p><p><br /></p><p><br /></p><p>下一個 Abell 84 在不遠處,看資料判斷應該更難,我都從卡洛琳玫瑰 NGC 7789 出發找,不過山上可以裸眼目視到 NGC 7789,尋星時跟根本不用光學尋星鏡,真是讚到無言啊!</p><p><br /></p><p>平地 Mewlon-210 看的 Abell 84:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj1cqhNyJd0htTmgWWaIBU3iaMJHz2QZ3-IEHvopQNAH-8ksmd9b7v7Q8TN6MMmx-MiCEFycBF8790-F-eFhCXD2wRTIan3pQm-33WZ7pcWwnwNpFwJ09e2MFWys9IZaSRzzjNkPBmqewxDNDh9WZnXV7J2SXM4vHe9Cz9CX8B5MR08GDjsX8qkvcWooY0/s1904/IMG_6315.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1904" data-original-width="1904" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj1cqhNyJd0htTmgWWaIBU3iaMJHz2QZ3-IEHvopQNAH-8ksmd9b7v7Q8TN6MMmx-MiCEFycBF8790-F-eFhCXD2wRTIan3pQm-33WZ7pcWwnwNpFwJ09e2MFWys9IZaSRzzjNkPBmqewxDNDh9WZnXV7J2SXM4vHe9Cz9CX8B5MR08GDjsX8qkvcWooY0/w400-h400/IMG_6315.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Abell 84 (Mewlon-210; 240X; UHC)</td></tr></tbody></table><br /><p>這也是看得半信半疑,雖然 averted vision 可以看到,但位在 +11.3 等星附近,而且雲氣在星點處最明顯,然後範圍又大... 難免會懷疑是不是光暈造成的結果而已?</p><p><br /></p><p>平地 40 公分反射鏡看的 Abell 84:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh6lJwAK77gcfOlnhElDQu3RY4KpL-W9Vve8-74szZS05Gv3ebbH9JxWhWL8a1154bJz9W6yyJZ9gPYXHHdh3rdgddzypgwhfhendmRdPovnVxNiu4xJ7kZfwMzUSW-wlWBcK0UjJKMuwp1hzON9xDg72lxqTg2b_I7FcO18WFIGaSe58h1CRVso4UJyuM/s2204/IMG_6484.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2204" data-original-width="2204" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh6lJwAK77gcfOlnhElDQu3RY4KpL-W9Vve8-74szZS05Gv3ebbH9JxWhWL8a1154bJz9W6yyJZ9gPYXHHdh3rdgddzypgwhfhendmRdPovnVxNiu4xJ7kZfwMzUSW-wlWBcK0UjJKMuwp1hzON9xDg72lxqTg2b_I7FcO18WFIGaSe58h1CRVso4UJyuM/w400-h400/IMG_6484.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Abell 82 (406mm f/3.75 dobsonian; 390X; UHC)</td></tr></tbody></table><br /><p><br /></p><p>平地 40 公分反射鏡搞得定 Abell 82,不過 Abell 84 還是不太行;同樣要 averted vision 才看得到,不過至少這次不會懷疑是不是看錯了,至少 +11.3 等星那側有雲氣是可以確認的。</p><p><br /></p><p>高山上 40 公分反射鏡看的 Abell 84:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhHxLipOPaBTeR81Jxz-_PJcVSLAH74aqS0vdEgrZ203YLH8tbwi-26d2B-HF80lizmXpv6Py-y10wus7chXOnhikKsi5DglCig82IZs_IojTAPJyB27AAvljjohvxAp8ZUvHIunYfFExgB2tniDsfgXcilN1EDXxBGx7lKxWTTh64q7FNcIQoNNXF1Kbw/s1867/IMG_6633.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1867" data-original-width="1867" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhHxLipOPaBTeR81Jxz-_PJcVSLAH74aqS0vdEgrZ203YLH8tbwi-26d2B-HF80lizmXpv6Py-y10wus7chXOnhikKsi5DglCig82IZs_IojTAPJyB27AAvljjohvxAp8ZUvHIunYfFExgB2tniDsfgXcilN1EDXxBGx7lKxWTTh64q7FNcIQoNNXF1Kbw/w400-h400/IMG_6633.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Abell 84 (406 f/3.75 dobsonian, 292X, UHC)</td></tr></tbody></table><br /><p>其實也不容易,Abell 84 的確是頗為挑戰的目標,貼著 +11.3 等星西側有中空一段黑,因此看起來雲氣分兩瓣,東側較濃範圍較小,西瓣較淡範圍稍大。</p><p><br /></p><p>完成這兩個平地看得很心虛的 Abell 行星狀星雲後,轉向星系,第一個是 NGC 7331 的暗帶,雖然這個不難,天況好時,平地用 Mewlon-210 就能認出,不過高山看是另一個境界。先複習一下平地看的 NGC 7331 周邊:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj72PugrpnVMyzlZY-_QLcuH-YERBMviWQPJAHiGDi3D1kWwtuMfHuXJXfcp8nHbK6TZU5XmjwFomXKexYgxXlBVpUGvct_eD68XwYkVAZhukWoyEzJsA28ilf7idICWmwv38dyjB6bQSWXze452zwZRne1bq6m5ZBVgNfoS65gJ2ka0AfnySTzIF42Yvk/s2048/IMG_6385.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2048" data-original-width="2048" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj72PugrpnVMyzlZY-_QLcuH-YERBMviWQPJAHiGDi3D1kWwtuMfHuXJXfcp8nHbK6TZU5XmjwFomXKexYgxXlBVpUGvct_eD68XwYkVAZhukWoyEzJsA28ilf7idICWmwv38dyjB6bQSWXze452zwZRne1bq6m5ZBVgNfoS65gJ2ka0AfnySTzIF42Yvk/w400-h400/IMG_6385.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 7331 group (NGC 7331, 7335, 7337, 7340) -- 406mm f/3.75 dobsonian; 500X</td></tr></tbody></table><br /><p>NGC 7331 的暗帶緊貼著核心;最容易認出的小跳蚤是 NGC 7337,然後是 NGC 7340,跟以前一樣,最後認出的是 NGC 7335。 山上呢?</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgd9I3m7fdzjkyDUqOQWR5pvXenHUZrrCviJEvxKDRIEDJL0e5t-z7r4anJA276UWVqwpRS8oJIMVk92lghMvTOKS8wwn4IHlae_HLgxh-O1DrWncOJc3P2MPprDaSUmKjqA9R17RodjhPn-p0z8OWxFq7VWQ-SD8v52uIOCr1rxnQsjZEeKCGPeM0HRso/s2381/IMG_6626.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2381" data-original-width="2381" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgd9I3m7fdzjkyDUqOQWR5pvXenHUZrrCviJEvxKDRIEDJL0e5t-z7r4anJA276UWVqwpRS8oJIMVk92lghMvTOKS8wwn4IHlae_HLgxh-O1DrWncOJc3P2MPprDaSUmKjqA9R17RodjhPn-p0z8OWxFq7VWQ-SD8v52uIOCr1rxnQsjZEeKCGPeM0HRso/w400-h400/IMG_6626.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 7331 dark lanes (406mm f/3.75; 473X)</td></tr></tbody></table><br /><p>高山上看到的 NGC 7331 核心亮到有點刺眼,哈哈~ 是有點開玩笑啦,不過 473X 下的景象不輸平地看到的 M31... 而且看起來外型還真有點像呢。貼著核心南側的暗帶當然清楚,不果我發現更南的外側還有一道暗帶;看到暗帶就能想像出旋臂或環臂的感覺。</p><p><br /></p><p>既然看星系暗帶,當然不能錯過 NGC 891:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiSMtypM4kwEvcCs2vH9d5igIthM9yMEGQgBqNcJ0aZSLdSg713ytRWl2zwQT9kAbeE8jpImpep6DFoHPweJPNKd8Jj4VSL5VBlLfFZ-75PKwcz0lGP0K_h2muQu6VWLmFkXWmX0_UFA6TDYdsS2xPzX3eUwCxAykvHJfcO_MihrEkEGtw6fC2vR9kQSd4/s2525/IMG_6627.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2523" data-original-width="2525" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiSMtypM4kwEvcCs2vH9d5igIthM9yMEGQgBqNcJ0aZSLdSg713ytRWl2zwQT9kAbeE8jpImpep6DFoHPweJPNKd8Jj4VSL5VBlLfFZ-75PKwcz0lGP0K_h2muQu6VWLmFkXWmX0_UFA6TDYdsS2xPzX3eUwCxAykvHJfcO_MihrEkEGtw6fC2vR9kQSd4/w400-h400/IMG_6627.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 891 dark lanes (406mm f/3.75 dobsonian; 473X)</td></tr></tbody></table><br /><p><br /></p><p>這是我印象裏看 NGC 891 暗帶最清楚的一次,以往都覺得暗帶不是切中央,而是偏南側,這次仔細看發現是在中央沒錯,只是南側的雲氣比較淡而已,高山上所有目標的雲氣都多了好多。核心中央向南北兩端膨起,像個大果核般,雲氣東西向延伸到末端的邊界比較能認出來,不像在平地總是模模糊糊的淡去。</p><p><br /></p><p>最後還有別名史蒂芬五重奏的 Arp 319 (HCG 92),同樣先複習最近的平地版:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEinTljhQKw3HgykT4KFOAZ0D_ckKxohwFLkrLcNKlUWXRq0qEsJVjOY5dmLlqWJPEWuzvVnzfFX-VTldwwIdQnAuHC9-fM50VWiAACnp4ujIEaxkpWwRDxj0RJmacsZPokArJwWjWqhQ1ba2gQTWgWzelxfz1yewywbOk9dMdPbedG4ZPwFWbjka_r9VTs/s2048/IMG_6384.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2048" data-original-width="2048" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEinTljhQKw3HgykT4KFOAZ0D_ckKxohwFLkrLcNKlUWXRq0qEsJVjOY5dmLlqWJPEWuzvVnzfFX-VTldwwIdQnAuHC9-fM50VWiAACnp4ujIEaxkpWwRDxj0RJmacsZPokArJwWjWqhQ1ba2gQTWgWzelxfz1yewywbOk9dMdPbedG4ZPwFWbjka_r9VTs/w400-h400/IMG_6384.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Stephan's Quintet (406mm f/3.75; 500X)</td></tr></tbody></table><br /><p><br /></p><p>500X 已經能把各星系的核心距離拉遠一些分辨,不過平地的條件沒那麼好,因此雲氣少少的,顯得各小星系互相遠遠的站著;NGC 7319 總是第一個認出來,NGC 7320 也還好,不過這次 NGC 7318 A 與 B 認得有點吃力,難以兩個同時看見,NGC 7317 就更困難了。</p><p><br /></p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhJdgOENMSujFHptAyt36DkMDGTP0NDVXhqT0kVeWcE-Ku-loH11r0EqdwAmP7LGdlMNiFSEsILQWjczYKi7y_1ifXwCGAfDDP5x2oxiYAQfmkqnkvCRO-4LVZThJRgPQaaOP23NaMbBBeVxgZXeynlB6fPKgKAVB6AFbeZ_gYONMS13rYwGS42bpnwP9U/s2129/IMG_6628.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2129" data-original-width="2129" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhJdgOENMSujFHptAyt36DkMDGTP0NDVXhqT0kVeWcE-Ku-loH11r0EqdwAmP7LGdlMNiFSEsILQWjczYKi7y_1ifXwCGAfDDP5x2oxiYAQfmkqnkvCRO-4LVZThJRgPQaaOP23NaMbBBeVxgZXeynlB6fPKgKAVB6AFbeZ_gYONMS13rYwGS42bpnwP9U/w400-h400/IMG_6628.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Stephan's Quintet (406mm f/3.75; 473X)</td></tr></tbody></table><br /><p><br /></p><p>高山上 40 公分鏡看就完全是另一種景象,雲氣之豐富,除了 NGC 7317 外其他四個幾乎是一起 "泡在雲氣裏" 模樣,我可以看出 NGC 7320 南北向拉長的外型,也可以察覺 NGC 7319 因被拉扯而不規則的雲氣條,像雙胞胎的 NGC 7818 A、B 合起來的雲氣向北方拉去,NGC 7317 的位置是在 +13.4 等星南方... 這時還真有 五重奏 的熱鬧感覺呢!</p><p><br /></p><p>後來還看了一些其它目標就沒畫下來;40 公分鏡在老外的星趴上其實算不上大傢伙,但幾年前的我絕對想不到有天真的把 16" 鏡扛到合歡山上來,目鏡所見都是驚訝;比如之前分段認的 M33 旋臂,我用 175X (10mm Ethos) 稍微認真數一下就能分辨出 4 條旋臂,NGC 604 除外... 因為真的太亮 XD,包括 NGC 595, IC 140, 139, 136, 135, 137, NGC 592, IC 131 都不用再拉高倍率就認出來,其它還有幾個都沒認真去認呢!</p><p><br /></p><p>月亮出來後先收大鏡子,然後用雙筒隨意瀏覽.... 也拍了些自拍當紀念,結束了這次好久不見的鳶峰之旅啦!</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhhIllFOoC9zAMOKNfwxrkaiB4FGOw9ANioTKCFqdZW1y_SKJWHoHugMj2gnhkVP2-np-dnHxoCCZLtbkbFDATB3CnrjpJaAg9yaHSHf6_czv0PjkQTo1m5kq9BmufBOUxr_cx2i7VlKOICZHXAhyphenhyphenLN2_2b69EAkIPbLQd9YuJK4fo0BZ7jhMV6G-tssyI/s1183/E07EE5E1-E0AA-456A-96E4-36E73A8F1D71-72076-00001AF140DBFDF0.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1183" data-original-width="1183" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhhIllFOoC9zAMOKNfwxrkaiB4FGOw9ANioTKCFqdZW1y_SKJWHoHugMj2gnhkVP2-np-dnHxoCCZLtbkbFDATB3CnrjpJaAg9yaHSHf6_czv0PjkQTo1m5kq9BmufBOUxr_cx2i7VlKOICZHXAhyphenhyphenLN2_2b69EAkIPbLQd9YuJK4fo0BZ7jhMV6G-tssyI/w400-h400/E07EE5E1-E0AA-456A-96E4-36E73A8F1D71-72076-00001AF140DBFDF0.jpg" width="400" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiqlgXES5FXgAH0xVgim5GuLc-Ea_CNj6KnpCH9xSNwDGJEFrEIRjXoDoSPhPhw9fYOzbekeomAyXO9AXO96MZWm9RT5EbqwrGilPGhrpuSKpUMOd4wK9gf_0f2En7TShmD4r2ba56H6v4ILgTGvS3Y5qPdLoWeih4wuSe9HCmyyn3BNiNG0sbZixWW75k/s1133/E1292B48-8449-445B-90AB-B3C87DAD5D49-72076-00001AF171127EF6.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1133" data-original-width="1133" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiqlgXES5FXgAH0xVgim5GuLc-Ea_CNj6KnpCH9xSNwDGJEFrEIRjXoDoSPhPhw9fYOzbekeomAyXO9AXO96MZWm9RT5EbqwrGilPGhrpuSKpUMOd4wK9gf_0f2En7TShmD4r2ba56H6v4ILgTGvS3Y5qPdLoWeih4wuSe9HCmyyn3BNiNG0sbZixWW75k/w400-h400/E1292B48-8449-445B-90AB-B3C87DAD5D49-72076-00001AF171127EF6.jpg" width="400" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgtZR4IWJhE8L0DUE6B-6JAoZZiGBBNOyj9g-I6llv8MwdlkjooiqpEn0SG4MDZvHIm2e3qoJtoxMWoVMvXG_mCH5Q4shUOKAc774bka-JTUH-40_8AHdSReaB3j2H7s7m4Ri_ScgfM_7n46EmpHVLblVjncNtdNTCSeGh2ODa0cWkusnKsQR0UwTgHzHo/s1123/4A218923-E3EB-4353-AEF1-5FB49B3F4875-72076-00001AF178265A93.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1123" data-original-width="1123" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgtZR4IWJhE8L0DUE6B-6JAoZZiGBBNOyj9g-I6llv8MwdlkjooiqpEn0SG4MDZvHIm2e3qoJtoxMWoVMvXG_mCH5Q4shUOKAc774bka-JTUH-40_8AHdSReaB3j2H7s7m4Ri_ScgfM_7n46EmpHVLblVjncNtdNTCSeGh2ODa0cWkusnKsQR0UwTgHzHo/w400-h400/4A218923-E3EB-4353-AEF1-5FB49B3F4875-72076-00001AF178265A93.jpg" width="400" /></a></div><p><br /></p>s00639http://www.blogger.com/profile/08382086616742866311noreply@blogger.com0tag:blogger.com,1999:blog-7477593545230087753.post-4229107969537711392023-10-27T17:34:00.003+08:002023-11-01T13:41:36.709+08:00松本眼鏡行的朝聖之旅<p>喜愛雙筒天文望遠鏡的同好們一定聽過松本龍郎先生,他在 1989 年發表的<a href="https://ems-bino.com/"> EMS 裝置</a> (1994 年取得日本專利) 在業餘天文圈內幾乎是大型雙筒望遠鏡的標配;不少手癢想自組雙筒的同好拿來裝在小型望遠鏡組上,我也是其中之一:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgTULZKerI4nCeZzp9I1zXbsWhEsjk3PL4C541qqn_wGHRUdzOZlNQZ_me6cQN__7T7siHVXrMFOtKuNEXMPvlQaYgNHVAIyacQfPdmJr_tG2eHXpXo3r-IyPEz6tORSdRFQZBRrsZTNVP09Z-_fn-TTQ96KCpS6H08cYhcv8NxNgMKwiUv4DiBhzy1I2w/s4032/IMG_1173.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="3024" data-original-width="4032" height="300" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgTULZKerI4nCeZzp9I1zXbsWhEsjk3PL4C541qqn_wGHRUdzOZlNQZ_me6cQN__7T7siHVXrMFOtKuNEXMPvlQaYgNHVAIyacQfPdmJr_tG2eHXpXo3r-IyPEz6tORSdRFQZBRrsZTNVP09Z-_fn-TTQ96KCpS6H08cYhcv8NxNgMKwiUv4DiBhzy1I2w/w400-h300/IMG_1173.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Borg 55FL (2016)</td></tr></tbody></table><br /><br /><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh_FKYMfbaEfz5xK3tuERKk2wyo4b-zXbPDTpkq-T9SiWtf7rCeMFysC9MCM9lgLNyja0g5SdcPkHeSvPG9rd6IIO130cXhiQBixEY1DaMY-_M1sUPiC-JmkEMX2jL_1vRL73psTMKkEDcZBxrZeuWrSEdpMUyx9_QoCDaxYdsMyffwZ7MJ7GqJb-e4yjE/s2400/6174631456_IMG_0078.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1600" data-original-width="2400" height="266" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh_FKYMfbaEfz5xK3tuERKk2wyo4b-zXbPDTpkq-T9SiWtf7rCeMFysC9MCM9lgLNyja0g5SdcPkHeSvPG9rd6IIO130cXhiQBixEY1DaMY-_M1sUPiC-JmkEMX2jL_1vRL73psTMKkEDcZBxrZeuWrSEdpMUyx9_QoCDaxYdsMyffwZ7MJ7GqJb-e4yjE/w400-h266/6174631456_IMG_0078.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Borg 71FL (2016)</td></tr></tbody></table><br /><br /><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEixV2nf2PrD__VtX3_1rHsUdiPfmXuSLCgBbtY8ck9onJhJFU4AGptQdAn8nyscW8uWfxKECxrDkojP4hWrH2GVwsZcPq5DIZcT6RHtat4iOJdiGSGWC56DZ1RYO4sWwdkOBeopf8DWPM_n0J7bnzD-i2lJ-53yLBTLGyzefSEVKoKBLh3gh0mkWiplp08/s4032/IMG_0931.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="3024" data-original-width="4032" height="300" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEixV2nf2PrD__VtX3_1rHsUdiPfmXuSLCgBbtY8ck9onJhJFU4AGptQdAn8nyscW8uWfxKECxrDkojP4hWrH2GVwsZcPq5DIZcT6RHtat4iOJdiGSGWC56DZ1RYO4sWwdkOBeopf8DWPM_n0J7bnzD-i2lJ-53yLBTLGyzefSEVKoKBLh3gh0mkWiplp08/w400-h300/IMG_0931.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Takahashi FC-100 DF (2016)</td></tr></tbody></table><br /><br /><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjYAo_NrWXPWTknismKVk1U4cZ7ePpMgfBavpjXYODqaEtsNS_JaOt1p1cuBTI18_1I-qmiNUS-KecdLUdtmKZf3eTnziDxWUeE-gMlzs9i0ZrR66mTzSF87Stak1jjuX4os9CkQxlTGtkNhD1KW46aYdBXPIPSTMJ40Q4gyiTcXOzmvqdxSrcu-wkoCvM/s1927/7516742896_IMG_2466.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1445" data-original-width="1927" height="300" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjYAo_NrWXPWTknismKVk1U4cZ7ePpMgfBavpjXYODqaEtsNS_JaOt1p1cuBTI18_1I-qmiNUS-KecdLUdtmKZf3eTnziDxWUeE-gMlzs9i0ZrR66mTzSF87Stak1jjuX4os9CkQxlTGtkNhD1KW46aYdBXPIPSTMJ40Q4gyiTcXOzmvqdxSrcu-wkoCvM/w400-h300/7516742896_IMG_2466.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Takahashi FOA-60 (2018)</td></tr></tbody></table><br /><br /><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgP839SgTHSTyzzzEdvh5prSPwcQSEZNR4Rv33H-5UjG67dwLwtaAp8SlY6TZ1aERYp9oGPWJnHSRl2xAJ9F6Xt0t4AZ1w279KNne9rDnauVyB3nzGDIPXRlIidWzSuJkc9rhgiXQKbzrwDHFORX-uSZwZmc4cXdIaj0kcvUzjd7g29nThbRuHTZP37Kgg/s4898/internal.30aea5b7b50d64cf4c6e3bcfeea0076d.DO1000182.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="3265" data-original-width="4898" height="266" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgP839SgTHSTyzzzEdvh5prSPwcQSEZNR4Rv33H-5UjG67dwLwtaAp8SlY6TZ1aERYp9oGPWJnHSRl2xAJ9F6Xt0t4AZ1w279KNne9rDnauVyB3nzGDIPXRlIidWzSuJkc9rhgiXQKbzrwDHFORX-uSZwZmc4cXdIaj0kcvUzjd7g29nThbRuHTZP37Kgg/w400-h266/internal.30aea5b7b50d64cf4c6e3bcfeea0076d.DO1000182.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Willian Optic ZS-103 (2020)</td></tr></tbody></table><br /><br /><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhR1OUcROkCKMeCgcT1JJPzklY0Mt1wr016dzbgklM720SThD2d7c9zj-ANxVBS1hF95MFEQonJU8QIWEiu26T5IjkoFLzLC6c6maLqe3CmBd8_MgpWkIdqzorgr_7M1V-Z6u7PreE8ggFgCRNAQLlPDFdyQKy_HVxMt9UrWizuypX7YgauYfZcRjMTPro/s1183/CF24DC35-A874-453E-8AE9-8EAAACF42AC3-95011-000024A603D52684.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1183" data-original-width="1183" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhR1OUcROkCKMeCgcT1JJPzklY0Mt1wr016dzbgklM720SThD2d7c9zj-ANxVBS1hF95MFEQonJU8QIWEiu26T5IjkoFLzLC6c6maLqe3CmBd8_MgpWkIdqzorgr_7M1V-Z6u7PreE8ggFgCRNAQLlPDFdyQKy_HVxMt9UrWizuypX7YgauYfZcRjMTPro/w400-h400/CF24DC35-A874-453E-8AE9-8EAAACF42AC3-95011-000024A603D52684.jpg" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Takahashi FC-76 (2022)</td></tr></tbody></table><br /><br /><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhh5ehufpRDgyGo55l_ziPcfZHyEWpg7E8THxwx6QkElHwwZMegA03czcEwJ3M2ZR_eTK_3syCuIzRTjLplSO-XkQpJdnOMU5b0wNHVEqzAS9kocs1TUeYAQGdUQ9YdZ4L-0UHcm-hI8mal4yzrOXiQ4XMDUmxUBgeM8K1q8wvr7NpA-h6u-3TdVNilLhg/s1293/FA2D7B14-7DBE-4F25-9DFA-5D600B048A9C-21669-00000EA13BC2F1A3.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1183" data-original-width="1293" height="366" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhh5ehufpRDgyGo55l_ziPcfZHyEWpg7E8THxwx6QkElHwwZMegA03czcEwJ3M2ZR_eTK_3syCuIzRTjLplSO-XkQpJdnOMU5b0wNHVEqzAS9kocs1TUeYAQGdUQ9YdZ4L-0UHcm-hI8mal4yzrOXiQ4XMDUmxUBgeM8K1q8wvr7NpA-h6u-3TdVNilLhg/w400-h366/FA2D7B14-7DBE-4F25-9DFA-5D600B048A9C-21669-00000EA13BC2F1A3.jpg" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Takahashi FC-76 (2023)<br /></td></tr></tbody></table><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEibMpxB7G4xWQEXuhg7pRULOZ21caoxpPducizF4qhpz36d8rOL_Yn2DWns6_zLldsSmHRwMFGosVj5i73GlRIjvjVLUxCdFzO9Ro5pMMem7T1LmTgOyvm1mMBXe68sv6PxTx2Uw4_kEclIiFZ0EzXlIwFe-o3wSjejiiDV9DIMcracqtrS3gf4oxoU12o/s1110/4EDDC256-F8FE-4270-A41E-3405B6AC51A6-42696-00001677D4D70B81.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1110" data-original-width="1110" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEibMpxB7G4xWQEXuhg7pRULOZ21caoxpPducizF4qhpz36d8rOL_Yn2DWns6_zLldsSmHRwMFGosVj5i73GlRIjvjVLUxCdFzO9Ro5pMMem7T1LmTgOyvm1mMBXe68sv6PxTx2Uw4_kEclIiFZ0EzXlIwFe-o3wSjejiiDV9DIMcracqtrS3gf4oxoU12o/w400-h400/4EDDC256-F8FE-4270-A41E-3405B6AC51A6-42696-00001677D4D70B81.jpg" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Borg 90FL (2023)</td></tr></tbody></table><br /><p><br /></p><p><br /></p><p>松本先生除了專業外也是位很大方慷慨的人,不管我的問題再笨,他也從不吝於詳細説明,因此每次看他 PO 以他眼鏡店為背景的成品相片,總會有個念頭 -- 到那個眼鏡店門口拍張相片有多好啊!</p><p><br /></p><p>終於等到疫情過後了,趁著夏天尾巴來到日本這個沒什麼人想來的鳥取縣,約定時間,第二天一早沿著地圖往心目中的雙筒聖地走...... 離車站10 幾分鐘左右,大馬路旁遠遠就看見相片不知道已經看過多少次的 "松本眼鏡" 行:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiyaLBb3fOkIGybcVe7eIHUhv1ZpbLue-Z-kC2ZrUYrShZi9Qx4yDHLadTDEVgHThxCAFleNbXLCurWSTEVFPitK9er1HesQkeHNEQGawSo-9RtdfKdbtp6YOle6ZSU90EoqQFebP2OO8-cjrWfQ-zqS1ZWfaUc94aeCDtBuphL5wQS5XEGrGUOFBwPg9I/s4032/IMG_6008.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="4032" data-original-width="3024" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiyaLBb3fOkIGybcVe7eIHUhv1ZpbLue-Z-kC2ZrUYrShZi9Qx4yDHLadTDEVgHThxCAFleNbXLCurWSTEVFPitK9er1HesQkeHNEQGawSo-9RtdfKdbtp6YOle6ZSU90EoqQFebP2OO8-cjrWfQ-zqS1ZWfaUc94aeCDtBuphL5wQS5XEGrGUOFBwPg9I/w300-h400/IMG_6008.HEIC" width="300" /></a></div><br /><p><br /></p><p>屋頂有顆曾上過不少雜誌的退休圓頂,松本先生早早就架好望遠鏡在看太陽...</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiS_DWUTpCmw6Ih8p4KhRpmKjXKbMCcZoy4Qbltf3dlMhYRk_uncqzQWCe-Ft0ocgJeJAbXI8x30lVx9-cgmb1C2cCEsh-mDTTJebX5C2Opz8No1xkQMJoe03HYRIJoYObXuTMJTBXufJXiTb44uk3pf19aoWbfYfXIGLFiNDV7GLvRgNJwSy71ePkTOio/s3024/IMG_6011.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3024" data-original-width="3024" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiS_DWUTpCmw6Ih8p4KhRpmKjXKbMCcZoy4Qbltf3dlMhYRk_uncqzQWCe-Ft0ocgJeJAbXI8x30lVx9-cgmb1C2cCEsh-mDTTJebX5C2Opz8No1xkQMJoe03HYRIJoYObXuTMJTBXufJXiTb44uk3pf19aoWbfYfXIGLFiNDV7GLvRgNJwSy71ePkTOio/w400-h400/IMG_6011.HEIC" width="400" /></a></div><br /><p><br /></p><p>第一次見到松本先生 -- 心目中的名人、大師、傳奇... 有點七上八下,應該要怎樣才好呢? 不過總就是天文同好嘛,除了打招呼外,最共通的語言就是看望遠鏡囉,而且我還是第一次看見日珥呢。我們就在外面看了半天,松本太太一直催我們進來喝茶... 哈哈,好可愛!</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgblSWypzmSQCojyYv5rFWFiBJ_oIhZNn2LW1hOZaWTzTj8CqyAQGX0yaLAGxs64bI8iIvoG9WuJseW3Lm_giWBGpASxG-SIEHwXp0UC8RbGbxiIwfv3_t1NrKMVfc2vJAkjM7jvINegzGyggTqQhpCxLTkMAN8X9PCmgeeUBCqXY1dBhowzvMY4p2q1yQ/s4032/IMG_6012.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3024" data-original-width="4032" height="300" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgblSWypzmSQCojyYv5rFWFiBJ_oIhZNn2LW1hOZaWTzTj8CqyAQGX0yaLAGxs64bI8iIvoG9WuJseW3Lm_giWBGpASxG-SIEHwXp0UC8RbGbxiIwfv3_t1NrKMVfc2vJAkjM7jvINegzGyggTqQhpCxLTkMAN8X9PCmgeeUBCqXY1dBhowzvMY4p2q1yQ/w400-h300/IMG_6012.HEIC" width="400" /></a></div><br /><p><br /></p><p>松本先生的工作室就在店裡,工具機也在店裡,別說做生意了,過生活都像在工廠,若我是松本太太,可能早早就翻臉了,哈哈~ 店裡一堆有點年代的眼鏡類商品看起來只是配飾而已... 問到這問題,兩夫婦笑得有點尷尬也有點不知道該如何回答...</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj8r-PDUvpfoLqLB8sfdoQBHO0q4-6noTdpW9OXifsd9GgJur3JWEleUtOt1AM8UuDa9Y2b0jrPTJilgxZDXQdJ1fx7FAnZ7oJPfhguAZzLBlYhZ6CVgc58VABOLz0KZS4J9GkNkQ8gfLYKYlQlB2Ma2JL3hzAWA6wYHjkP9yhD7yGMxuYio18i_EAlU4g/s4032/IMG_6009.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3024" data-original-width="4032" height="300" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj8r-PDUvpfoLqLB8sfdoQBHO0q4-6noTdpW9OXifsd9GgJur3JWEleUtOt1AM8UuDa9Y2b0jrPTJilgxZDXQdJ1fx7FAnZ7oJPfhguAZzLBlYhZ6CVgc58VABOLz0KZS4J9GkNkQ8gfLYKYlQlB2Ma2JL3hzAWA6wYHjkP9yhD7yGMxuYio18i_EAlU4g/w400-h300/IMG_6009.HEIC" width="400" /></a></div><br /><p><br /></p><p>我帶了兩種台灣高山烏龍 -- 都是得獎的喔,糖村的牛軋糖當禮物,希望他們會喜歡... 然後就邊喝著、吃著松本夫婦準備的日本茶還有和菓子,邊聊天。怎麼聊? 用學到現在快 4 年的破爛日語加英語呀,還有 Google translater,本來還怕沒這麼熟會聊不下去,不過聊開後聊到中飯都來不及吃。可愛的松本太太不斷加入聊天,她說的我大致都聽得懂,但是我的 口說 就有點卡了,只能用基本句型繞很長來表達;奇怪,學過這麼多漂亮的文法怎麼都用不上? 希望下次來拜訪時我能練得更厲害一點。</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjyCQ8zmcW4WxWlZ0WA5duqFI9boCUOCodzw2cPWF8YviKFMyAJidj53QdyWnyLvvuibQN15VJHsW46OIqSWeFbkHoc1ajq6LtQRnvFxlXfidvsKHLO6rd633hmQSTxuRJnDHtlC_sFmHyQRBeGE-AI9w8gi6TiikxWg75BQWQaJdQ2nSieJxMuglNcnzM/s3024/IMG_6015.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3024" data-original-width="3024" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjyCQ8zmcW4WxWlZ0WA5duqFI9boCUOCodzw2cPWF8YviKFMyAJidj53QdyWnyLvvuibQN15VJHsW46OIqSWeFbkHoc1ajq6LtQRnvFxlXfidvsKHLO6rd633hmQSTxuRJnDHtlC_sFmHyQRBeGE-AI9w8gi6TiikxWg75BQWQaJdQ2nSieJxMuglNcnzM/w400-h400/IMG_6015.HEIC" width="400" /></a></div><br /><p><br /></p><p>松本先生跟我說著他的開發歷程,不斷翻著舊相簿回憶過去的天文生活... 聽著聽著我的心還有點莫名其妙的不安,感覺像在偷別人的生命回憶的樣子,不曉得該怎麼形容啦! 不過真的很感激可以跟一位遙遠的網友,跨過一點點年齡的界限,分享私人的人生回憶,真是莫大的榮幸。</p><p><br /></p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhxlns9G58y1e-ZkEfAaeiX4MMhVIxZQupCN-8hJohHwrF8ItAadFzlFviB-py6NDQx429cf7Gi9OVol3Q8wa32B-3LykoDYVXdekHf3ktlkjhtkbkLFuBuUAH3EWVg8gQXthxR8JAF5rGECvjGvhyphenhyphenI_Bbgr3aOvQ2IN4R87SXjdL2CwWiUTN4hz9gpXiY/s4032/IMG_6013.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="4032" data-original-width="3024" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhxlns9G58y1e-ZkEfAaeiX4MMhVIxZQupCN-8hJohHwrF8ItAadFzlFviB-py6NDQx429cf7Gi9OVol3Q8wa32B-3LykoDYVXdekHf3ktlkjhtkbkLFuBuUAH3EWVg8gQXthxR8JAF5rGECvjGvhyphenhyphenI_Bbgr3aOvQ2IN4R87SXjdL2CwWiUTN4hz9gpXiY/w300-h400/IMG_6013.HEIC" width="300" /></a></div><br /><p><br /></p><p>上圖這隻佈滿灰塵的,可是世界上第一隻松本正像鏡喔,工程品,還沒上市的原型機</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjrGnmXxN-upP5oFXdTQrFiYmptjDjqXzl5mqvMM8VgQEiRAf9RvsCXgyzliU_fU9yZOS9tWU4KLMdGrLAcylONqIe6fcRAJ6slUkA8wjPACx26wg3t0eVqoeqbxc34GrfChfe_BMjFSM5fI7lflnW_MKtQzxhr4BWXhizPNCBNoYMJ0spjjKfAX5Wr36M/s4032/IMG_6014.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3024" data-original-width="4032" height="300" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjrGnmXxN-upP5oFXdTQrFiYmptjDjqXzl5mqvMM8VgQEiRAf9RvsCXgyzliU_fU9yZOS9tWU4KLMdGrLAcylONqIe6fcRAJ6slUkA8wjPACx26wg3t0eVqoeqbxc34GrfChfe_BMjFSM5fI7lflnW_MKtQzxhr4BWXhizPNCBNoYMJ0spjjKfAX5Wr36M/w400-h300/IMG_6014.HEIC" width="400" /></a></div><br /><p><br /></p><p>右邊的兩個就是第一代跟第二代上市產品,當時大部分都要靠手工製作、開模鑄鐵... 之類處理,成本都很高</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjq3jn4wIfPvXEzuPQQFO096PjunxfGc-4eAlz8JdRbb4Zv7Dox-yPb2GSZ-KvN1E6ZN0h15zKSPhzFE-js6AW8eo4VfR6AbmLq9pNX6iJWm4TXeujb_ESLnZXmJAF1yUIMBKJhBFjwy1gIukB_Zeivx17hkrnEJrfiRx_QwqGPeKIgcluqabld73A_l2w/s3024/IMG_6016.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3024" data-original-width="3024" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjq3jn4wIfPvXEzuPQQFO096PjunxfGc-4eAlz8JdRbb4Zv7Dox-yPb2GSZ-KvN1E6ZN0h15zKSPhzFE-js6AW8eo4VfR6AbmLq9pNX6iJWm4TXeujb_ESLnZXmJAF1yUIMBKJhBFjwy1gIukB_Zeivx17hkrnEJrfiRx_QwqGPeKIgcluqabld73A_l2w/w400-h400/IMG_6016.HEIC" width="400" /></a></div><br /><p><br /></p><p>最後就是跟我心目中的傳奇人物合照圖啦:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhTp3WOJ7xE74Cb9ZIxwRor0AGeEBMNfuwThoTxHglWvnssDgtGz-f3rAVf-mG2_Byb1nq-9T21Q0HilMtd6U7-kZZEr-Elasy6Jh3rwtILsSdkXFpyAhY50zxPLddMLZ0hDPoHCmOht7-uIwOkGoyTkzEZFCJ9U2Za7BW7im_FezoYX6M7njDPU-6nVSc/s4032/IMG_6018.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3024" data-original-width="4032" height="300" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhTp3WOJ7xE74Cb9ZIxwRor0AGeEBMNfuwThoTxHglWvnssDgtGz-f3rAVf-mG2_Byb1nq-9T21Q0HilMtd6U7-kZZEr-Elasy6Jh3rwtILsSdkXFpyAhY50zxPLddMLZ0hDPoHCmOht7-uIwOkGoyTkzEZFCJ9U2Za7BW7im_FezoYX6M7njDPU-6nVSc/w400-h300/IMG_6018.HEIC" width="400" /></a></div><br /><p><br /></p><p>像不像台灣的老眼鏡鐘錶行? 超有熟悉感。我背後櫃子裏滿滿是鍍完膜處理好的鏡片,看包裝都是本地的玻璃会社,松本先生旁玻璃窗內的機器就是他每天做加工的機器之一...... 好了,天文夢想事項又解鎖一個啦!!</p><p><br /></p>s00639http://www.blogger.com/profile/08382086616742866311noreply@blogger.com2tag:blogger.com,1999:blog-7477593545230087753.post-34975560376408784982023-09-27T17:31:00.003+08:002023-09-27T17:36:09.883+08:002023 年的行星自行記錄與土木星初觀察<p>今年依舊很準時在 7 月就完成 "天鵝 61 號星" 與 "巴納德之星" 的紀錄,不過從去年起定義好以小畫家對圖的步驟後,已經可以自食其力處理拍下來的相片了,雖然醜,也不是很準,但至少可以觀察個大概,最重要的是終於不用等請別人幫忙處理後才寫筆記啦。</p><p><br /></p><p>先看看 61 Cyg.:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEitYIr5N-r5fHf5CJfu-NYk76M9aFA6kuzVSGFoJ-vMltmsPMosrzmJ7cddTzKlua3RTrfDcMTFuaOsGwy_xb4ox0a4IdHK9QNTa65H5UlZ4nIPnCvZ5gcCZcvOwoz159U4olcrmhUqJGfc_4q5iVXTxk7XuiBgNm0VgcX5R0-9ZrNznupwzEJILgNsANs/s1776/61cyg-CFF160-2023(rawfile).JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1184" data-original-width="1776" height="266" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEitYIr5N-r5fHf5CJfu-NYk76M9aFA6kuzVSGFoJ-vMltmsPMosrzmJ7cddTzKlua3RTrfDcMTFuaOsGwy_xb4ox0a4IdHK9QNTa65H5UlZ4nIPnCvZ5gcCZcvOwoz159U4olcrmhUqJGfc_4q5iVXTxk7XuiBgNm0VgcX5R0-9ZrNznupwzEJILgNsANs/w400-h266/61cyg-CFF160-2023(rawfile).JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">61Cyg Photo (CFF 160, 2023-07)</td></tr></tbody></table><br /><p>61 Cyg. 很美,就算不管行星自行現象,也是組賞心悅目的雙星,手持小雙筒就能一覽其美;把圖稍做剪裁與方向調整後:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhHscW4uIPm-nKtBjXsO08ohstI6e3putVJShmiyW6XtMmABJiWHl6Rr5fp3RiaoYS_mVk5Izey85tYeAv8RWbmcI5Hw59AlnucMdv0xb6gkbkiC5CSYngeMlLtp9RQe30-gyev4dUS_kNYZiiZs9EVz2olINe3vNVRFBMdQAxX8XNtz4g3Am-6RKl6-PE/s600/61cyg-CFF160-2023(rawfile)-%E6%8B%89%E7%9B%B4.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="471" data-original-width="600" height="314" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhHscW4uIPm-nKtBjXsO08ohstI6e3putVJShmiyW6XtMmABJiWHl6Rr5fp3RiaoYS_mVk5Izey85tYeAv8RWbmcI5Hw59AlnucMdv0xb6gkbkiC5CSYngeMlLtp9RQe30-gyev4dUS_kNYZiiZs9EVz2olINe3vNVRFBMdQAxX8XNtz4g3Am-6RKl6-PE/w400-h314/61cyg-CFF160-2023(rawfile)-%E6%8B%89%E7%9B%B4.jpg" width="400" /></a></div><br /><p>最後再跟歷年拍下來的紀錄對比一下:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg7mroecVRDTEpz3NwsP5rZ-3SwLIWK8N5iqV6JmXVj21n9LWwKTB2BhTD1-Up6TvtFPnTbrjMq4l5kyqiLM-RXl3lGnyTB9OVtLDgO0xxC0ZFyDEPFkPsmxf8M5h_VWdvjQC3PADtdpabd526Pt2VsipQ5D88gug62aaI2-lzZdgnP6eJxp8JXAd2tqmw/s2452/61cyg-2017to2023-aligned.png" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1080" data-original-width="2452" height="282" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg7mroecVRDTEpz3NwsP5rZ-3SwLIWK8N5iqV6JmXVj21n9LWwKTB2BhTD1-Up6TvtFPnTbrjMq4l5kyqiLM-RXl3lGnyTB9OVtLDgO0xxC0ZFyDEPFkPsmxf8M5h_VWdvjQC3PADtdpabd526Pt2VsipQ5D88gug62aaI2-lzZdgnP6eJxp8JXAd2tqmw/w640-h282/61cyg-2017to2023-aligned.png" width="640" /></a></div><div><br /></div>因為旁邊有參考星,所以還蠻容易看出每年的移動。<br /><p><br /></p><p><br /></p><p>另一個 Barnard's Star 自行速度更快,不過單獨看就是一顆平凡無奇的恆星而已:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhTI2F7MX7hAhJhEqloMs-CLI30Fg1_rHBOPyCrT7x9e7ZuV2uRfmJTQocQL8XCA6kfAQNqZHFF8LtczArqj0DnvKKcEByNT-pK7YmlupOmwsPMQuAURgqTtOtPTow7NN22cKM3zdOUJFUU0VQZNmQT39Z6VuWmD87DUK12fWA5sj17fddZ9p_YbhSR5o8/s1776/BarnardStar-CFF160-2023(rawfile).JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1184" data-original-width="1776" height="266" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhTI2F7MX7hAhJhEqloMs-CLI30Fg1_rHBOPyCrT7x9e7ZuV2uRfmJTQocQL8XCA6kfAQNqZHFF8LtczArqj0DnvKKcEByNT-pK7YmlupOmwsPMQuAURgqTtOtPTow7NN22cKM3zdOUJFUU0VQZNmQT39Z6VuWmD87DUK12fWA5sj17fddZ9p_YbhSR5o8/w400-h266/BarnardStar-CFF160-2023(rawfile).JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Barnard's Star (CFF160, 2023-7)</td></tr></tbody></table><br /><p><br /></p><p>像這樣... 還真難找出是哪顆呢! 同樣把圖稍做剪裁與方向調整後:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhNeMNi9z6qpoeFzjeZEWEpWHix8mb-Xw111lkW3CImOQl3BAMqcIO7pMY1Vj_-3Ahx18i52L5RIn-EKr2xFmo_gzMMmjmi3zxjEYtXzP9QDlOTIv3hOP8L0SGMsJw37Ua_mX0gtHZjl9k_yVDbjddcNd22PaOkU4xRaHfTXf0Pd0NngkEpHQJ0kkK_6Hw/s1108/BarnardStar-CFF160-2023(rawfile)-%E6%8B%89%E9%95%B7.png" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1108" data-original-width="800" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhNeMNi9z6qpoeFzjeZEWEpWHix8mb-Xw111lkW3CImOQl3BAMqcIO7pMY1Vj_-3Ahx18i52L5RIn-EKr2xFmo_gzMMmjmi3zxjEYtXzP9QDlOTIv3hOP8L0SGMsJw37Ua_mX0gtHZjl9k_yVDbjddcNd22PaOkU4xRaHfTXf0Pd0NngkEpHQJ0kkK_6Hw/w289-h400/BarnardStar-CFF160-2023(rawfile)-%E6%8B%89%E9%95%B7.png" width="289" /></a></div><br /><p><br /></p><p>紅線指的就是 Barnard's Star。然後跟歷年拍的做比較:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiDtqGOy-zdXjWrAAvdc7aivqFJN7ii1M7ufkkPuTbFafcg2dxmWEBCuIEsojBKIhzeCuiZoz_umDyfahjuL4O4TMrTgAc5zIxrWHRGQr3YgAW8A7mDae-v45Z3qut6Wj20sBOf7yTPWOf2ozgQ8PTGtNYNcrqmkgiHtOc2LVkWou088S_pFYKZo-Yn1fQ/s3256/BarnardStar-2017to2023-aligned.png" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2568" data-original-width="3256" height="504" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiDtqGOy-zdXjWrAAvdc7aivqFJN7ii1M7ufkkPuTbFafcg2dxmWEBCuIEsojBKIhzeCuiZoz_umDyfahjuL4O4TMrTgAc5zIxrWHRGQr3YgAW8A7mDae-v45Z3qut6Wj20sBOf7yTPWOf2ozgQ8PTGtNYNcrqmkgiHtOc2LVkWou088S_pFYKZo-Yn1fQ/w640-h504/BarnardStar-2017to2023-aligned.png" width="640" /></a></div><br /><p>有兩條參考綠線,看著紅線一年一年移動蠻明顯的;從 2017 開始拍照記錄 (2015, 2016 素描記錄),到現在也有 7 年份的拍照記錄了。</p><p><br /></p><p><br /></p><p>接下來是行星,今年行星出現的月份較晚一些,我的 "第一看" 土星是在市區家的陽台 -- 高光害、低角度,"第一畫" 則是關西家屋頂用 4 吋鏡:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEikCL5m-eYec3q3n5EE_GwD2kiY-1Xhgrgg14INz4h8vG9GAWynSQHohZqISi0oOBFQUTUADP2N2UU3v6ZjYhzBlXay7aT3CjWwX5qy7FlotDFwF4vtRGB3tZ-ZXwhxpmzAXdKiz73zw6gpTyzjFH9jN9Is__It5tJykCPA28ZVyBz1pCSMiTTXIuKJ_Rs/s1645/IMG_5810.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1645" data-original-width="1569" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEikCL5m-eYec3q3n5EE_GwD2kiY-1Xhgrgg14INz4h8vG9GAWynSQHohZqISi0oOBFQUTUADP2N2UU3v6ZjYhzBlXay7aT3CjWwX5qy7FlotDFwF4vtRGB3tZ-ZXwhxpmzAXdKiz73zw6gpTyzjFH9jN9Is__It5tJykCPA28ZVyBz1pCSMiTTXIuKJ_Rs/w381-h400/IMG_5810.JPG" width="381" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Saturn (FC-100DZ f/8; Baader MKV + 1.25X GPC for 333X)</td></tr></tbody></table><br /><p><br /></p><p>這張還可以,後來陸陸續續畫的幾張都放棄存檔,土星真是我素描的罩門啊 ~</p><p><br /></p><p>結果又再買了一次 Tele Vue 的 3mm ~ 6mm Nagler Zoom >"<,畢竟還是很方便:</p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiN1ygkWnaedpvG1pyNTxYUNU8Sd9EBKarv-3ZOgBV46LosNDmiHbD84haob5fRXHatvip6S8iaeb04_Qq5aF4Qka_SK5F07gbkG-xiXqs2EJJvBqE9Y_JM_kSqKotZ7VgxNxV4DsqeNQzPCcMZhWIUFjSM7vZnw_RHK_W8QQ9KodFbOg07Dq43bdjzl8E/s1776/CB0B9B2E-7B9B-4765-896C-FFE3AE4ADA9F-7485-00000624F1849A43.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1184" data-original-width="1776" height="266" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiN1ygkWnaedpvG1pyNTxYUNU8Sd9EBKarv-3ZOgBV46LosNDmiHbD84haob5fRXHatvip6S8iaeb04_Qq5aF4Qka_SK5F07gbkG-xiXqs2EJJvBqE9Y_JM_kSqKotZ7VgxNxV4DsqeNQzPCcMZhWIUFjSM7vZnw_RHK_W8QQ9KodFbOg07Dq43bdjzl8E/w400-h266/CB0B9B2E-7B9B-4765-896C-FFE3AE4ADA9F-7485-00000624F1849A43.jpg" width="400" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjK1a3cSMs1OSf-SFR_n96bYrl7rZT0frGtueG_yX43Tyn8kN1ZP1hg2_wWchuB2IhDTT8SeuXzK-QoCznckEaXOBWIwoe_GIn3TZxIGNWSxsyak-UAN1uBpyD8gPOF7tjb7nB_KSfU80lIbjvteN9JgGTYhoTKViJqQSksBrHGw4TL-V8A0XD4DTWMHng/s1182/0434B2C4-052A-4962-BC25-F3F5A1E556CE-7485-00000624D6909DC9.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1182" data-original-width="1182" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjK1a3cSMs1OSf-SFR_n96bYrl7rZT0frGtueG_yX43Tyn8kN1ZP1hg2_wWchuB2IhDTT8SeuXzK-QoCznckEaXOBWIwoe_GIn3TZxIGNWSxsyak-UAN1uBpyD8gPOF7tjb7nB_KSfU80lIbjvteN9JgGTYhoTKViJqQSksBrHGw4TL-V8A0XD4DTWMHng/w400-h400/0434B2C4-052A-4962-BC25-F3F5A1E556CE-7485-00000624D6909DC9.jpg" width="400" /></a></div><br /><p>今年的土星就...... "很土星",長得像教科書的大頭照等級的像;土星外貌跟前兩三年比起來真是大不同,主要是露出一大部分的南半球,南半球色澤看起來較深,偏藍色調,seeing 穩定時可以略略看出一到兩條 "帶"。整體而言最亮的是 "赤道區",亮度感覺比 B 環更亮;由於環的傾角變很小,因此看得到 "環" 的面積也比過往幾年小很多,所以 A 環能看到的部分就更少了,可能因此 A 環的色澤看起來頗深,也因此要看到完整繞一圈的卡西尼縫之挑戰也大很多;我今年看過 "完整繞一圈的卡西尼縫" 不是新朋友 406mm 杜普生,也不是銳利的折射鏡 CFF 160 APO,而是某個 seeing 超好的夜晚用 Mewlon-210;C 環也是,雖然不管用哪隻鏡子我都認得出 "部分" C 環,但最漂亮完整那次也是同一夜晚的 Mewlon-210。NEB 色澤感覺沒過去一兩年來的深,NEB 到 北極區 間的色澤偏暖紅色調,同樣可以認出一兩條深色的 "帶",但都不是很明顯。</p><p><br /></p><p><br /></p><p>今年雙目用的目鏡也有新朋友,目前高橋目鏡個系列都停止生產,倒是出了一款新的 TPL 系列,喜歡湊熱鬧的我當然也弄來了兩對試試看,18mm 跟 12.5mm:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiIOlQ96JUUmbKHERRbWrwUe4gcjT6W4M-qhOgxzDXzVFSHoZO0TrmwkfXNBps6Cn6Zw9HkvTIqQr3Bc6iX1VcUSyiZ9uGU0vBqboQmcj99cF5eufZVktVN1SXwu7A7LT4SYG5SXe98ysLjj_fmEOQ1ADt2dtxz2_ZUEAL1L-oL9TUgexzxsGcc-0Z6DYI/s2475/IMG_6246.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2475" data-original-width="2475" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiIOlQ96JUUmbKHERRbWrwUe4gcjT6W4M-qhOgxzDXzVFSHoZO0TrmwkfXNBps6Cn6Zw9HkvTIqQr3Bc6iX1VcUSyiZ9uGU0vBqboQmcj99cF5eufZVktVN1SXwu7A7LT4SYG5SXe98ysLjj_fmEOQ1ADt2dtxz2_ZUEAL1L-oL9TUgexzxsGcc-0Z6DYI/w400-h400/IMG_6246.HEIC" width="400" /></a></div><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiudg9kBJDK-AWen_Og-xf_YemTkWSherU-oI_cCtq0Kw7rKI5nb20nc6e-Krp9xjEr1lJQ61iJKZjGx9xJTSHGZv-00xKLIx-q83xzPmIyOQPUwUNp-y1gCeoasXM_PCWQoueJX3511BJvmhqCpEJhDKa6t5Rd1oHI_T_5B0syQdg1D4okBbLeHbdkLB8/s3024/IMG_5846.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3024" data-original-width="3024" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiudg9kBJDK-AWen_Og-xf_YemTkWSherU-oI_cCtq0Kw7rKI5nb20nc6e-Krp9xjEr1lJQ61iJKZjGx9xJTSHGZv-00xKLIx-q83xzPmIyOQPUwUNp-y1gCeoasXM_PCWQoueJX3511BJvmhqCpEJhDKa6t5Rd1oHI_T_5B0syQdg1D4okBbLeHbdkLB8/w400-h400/IMG_5846.HEIC" width="400" /></a></div><br /><p><br /></p><p>不過 12.5mm 想當行星目鏡,主鏡焦長沒個 4000mm、5000mm 就只是雞肋而已;那就加巴羅吧! 剛好今年的兩張木星都是用這種組合畫的:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj-h7WZL9UpZx3GF5vMD0J0_WqsZu3uOyCiWGTRo1ltL4aV9KBABkIA0HIdsiETsrigrFCe7Bvps3LoFWzcThR7gZnAcmJh-VgtKJnTEJiMSCQIKi3tU2v8-U-aNdfV0iEl0NcrCcl9j_NcvpmxSiX29FMTPh3FZhm7OBrOFW_sKX92qEJusKGQB4v1ESk/s1705/IMG_6270.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1679" data-original-width="1705" height="394" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj-h7WZL9UpZx3GF5vMD0J0_WqsZu3uOyCiWGTRo1ltL4aV9KBABkIA0HIdsiETsrigrFCe7Bvps3LoFWzcThR7gZnAcmJh-VgtKJnTEJiMSCQIKi3tU2v8-U-aNdfV0iEl0NcrCcl9j_NcvpmxSiX29FMTPh3FZhm7OBrOFW_sKX92qEJusKGQB4v1ESk/w400-h394/IMG_6270.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">IO transit (CFF 160 f/6.5; Baader MKV + 2.6X GPC, 12.5mm TPL for 216X, 9mm Abbe for 300X)</td></tr></tbody></table><br /><p>今年第一木就剛好碰到 IO 凌,真是好兆頭,不過差點認不出來,因為對比實在不明顯呀;由於今年改用松本正像對角鏡,所以方向也跟往年畫的相反,由左向右轉,大紅斑正要轉到背面去,而且位置靠在邊邊對比也很糟,細節看得不是很清楚。整體而言,今年木星的初印象是赤道區變得安靜許多,festoons 還是有,也拖得長長的,但赤道區內看起來就比較乾淨;另外,小紅斑目前的位置越來越靠近大紅斑,不過我認不太出來,顏色一年比一年淺,希望預計明年能抵達的 300mm CC 可以早日到達以助我一臂之力。</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhQKeNXqZu_Yh6KVQMB4Ly1Has__BNx0wftzkJwfDNeoFIi0z-7UzngQVSeiCuJakwEKsojvh2hPm8hIRKVHT8V5X_DZZaJt0J4GhX4d3MZPFiCfb_1kIMUGHozpVmDaEiUHOEIGzXggrOr1hUuG5sDfmuZbxcaouARi9qwZX0hYnMO0FjnKUQaIgO0bYU/s1467/IMG_6281.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1459" data-original-width="1467" height="398" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhQKeNXqZu_Yh6KVQMB4Ly1Has__BNx0wftzkJwfDNeoFIi0z-7UzngQVSeiCuJakwEKsojvh2hPm8hIRKVHT8V5X_DZZaJt0J4GhX4d3MZPFiCfb_1kIMUGHozpVmDaEiUHOEIGzXggrOr1hUuG5sDfmuZbxcaouARi9qwZX0hYnMO0FjnKUQaIgO0bYU/w400-h398/IMG_6281.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">GRS transit (Mewlon-210 f/6.5; Baader MKV + 1.25X GPC, 12.5mm TPL for 240X, #12 yellow)</td></tr></tbody></table><br /><p>這張是由右向左轉的,因為 Mewlon-210 的 backfocus 不夠長,所以沒辦法用松本正像鏡。這次的大紅斑正剛轉出來,看得相當清楚,尤其大紅斑前面上方的複雜氣流相當醒目;SEB 被兩條拖得很長很長的氣流似乎切出中央一道白線,南半球還有另外兩條 "帶" (band) 可以輕易認出;赤道區內畫面左側有一道深色的氣流蠻明顯的,其它就是幾道拖得很長的 festoons。</p><p><br /></p>s00639http://www.blogger.com/profile/08382086616742866311noreply@blogger.com0tag:blogger.com,1999:blog-7477593545230087753.post-13925382895754721682023-08-23T16:25:00.000+08:002023-08-23T16:25:06.358+08:0016 吋 Dobsonian 第三次改版<p>原先只是貪圖價格便宜,買了台 40 公分主鏡的龐然巨物,想説擺在陽台加減看就好... 可是 40 公分的景象實在太誘人了,不管品質多麼平凡,只要看過一次就難以忘懷。</p><p><br /></p><p>剛搬回家的模樣是這樣,406mm f/4.5 主鏡:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgOtURJ9voH2G7aD9q6uf-DIeu52Dk4kTe-BiCcdiQIrB32zSuJiISBUTLualuieX9dOzps53w311MGICOmGvzOYErck3X-5n6qPwvZ1xfkc6j1Xf1hp74UGCJny9f80QDaOqzF-n3DziNqRl2aRgLkq29W2L5To5uXaSmAUI-CAAr_VbF6yhYQg7h6NMI/s1776/DC6949AF-C6E2-45EF-9099-5A6FB7564408-5163-0000033F3B51F1BF.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1776" data-original-width="1184" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgOtURJ9voH2G7aD9q6uf-DIeu52Dk4kTe-BiCcdiQIrB32zSuJiISBUTLualuieX9dOzps53w311MGICOmGvzOYErck3X-5n6qPwvZ1xfkc6j1Xf1hp74UGCJny9f80QDaOqzF-n3DziNqRl2aRgLkq29W2L5To5uXaSmAUI-CAAr_VbF6yhYQg7h6NMI/w266-h400/DC6949AF-C6E2-45EF-9099-5A6FB7564408-5163-0000033F3B51F1BF.jpg" width="266" /></a></div><div class="separator" style="clear: both; text-align: center;"><br /></div><p>這有點錯位,實際上接近天頂時我得墊個椅子眼睛才湊得到目鏡。後來還買了件不便宜的衣服幫它穿上:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhFFfkDRQqW6pdbpuBH0v_d1huEpI2z6Gmbj8Ox_KHoRzD-k-OHJfkroLQ4my5CZbLJck9H7JY6lSVznmoqhAuilC2QGvfagKF4T_KNdeXf7bRLzUZOyee13jjqeT0JXjerqZ-ihzl8DW4e2dXXXdo7WBuZngvx9FqIM1Wqx10G9Ri3cs9yb3EEMOKhSJc/s1183/F2421505-E552-4797-A0FF-256412641B67-2147-00000110F42B7416.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1183" data-original-width="1183" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhFFfkDRQqW6pdbpuBH0v_d1huEpI2z6Gmbj8Ox_KHoRzD-k-OHJfkroLQ4my5CZbLJck9H7JY6lSVznmoqhAuilC2QGvfagKF4T_KNdeXf7bRLzUZOyee13jjqeT0JXjerqZ-ihzl8DW4e2dXXXdo7WBuZngvx9FqIM1Wqx10G9Ri3cs9yb3EEMOKhSJc/w400-h400/F2421505-E552-4797-A0FF-256412641B67-2147-00000110F42B7416.jpg" width="400" /></a></div><br /><p><br /></p><p>隨著使用次數增加,越來越想改造讓使用上更加便利,於是一咬牙請當初楊凱兄介紹的 義大利 DocTelescope 公司 馬可先生幫我做過結構;這是一個大改造,其實除了主鏡以外根本是台全新的東西了:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhriI0PrU3ZkV0S4byobuBOmWYn2RUhyr1dg_Afg1L2AeBxYROi9BYZGexbID_GE8azm8irJOym6vXx-G8nWxAelZBAvux8_USMNJqFi8CW6qAYfKu2ssnIks_0FpNJIrimoigb6m8zLHcbiUeeTL5v7y1TZ7AnBqHmCN5EMDSYi_ccROJBHBKrauDEpF0/s1774/BCD9E0AF-C0E7-4D27-A596-A8C197AA0A22-1696-000000D31DFE92BB.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1774" data-original-width="1168" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhriI0PrU3ZkV0S4byobuBOmWYn2RUhyr1dg_Afg1L2AeBxYROi9BYZGexbID_GE8azm8irJOym6vXx-G8nWxAelZBAvux8_USMNJqFi8CW6qAYfKu2ssnIks_0FpNJIrimoigb6m8zLHcbiUeeTL5v7y1TZ7AnBqHmCN5EMDSYi_ccROJBHBKrauDEpF0/w264-h400/BCD9E0AF-C0E7-4D27-A596-A8C197AA0A22-1696-000000D31DFE92BB.jpg" width="264" /></a></div><br /><p><br /></p><p>這台當然漂亮,以純杜普生來說我也用過好幾隻不同設計的組合,包括已經停工的 Teeter Telescope... ㄟ,也是楊凱介紹的,哈哈~~ 但以顏值來說,還是 DOCTelescope 的美,而且金屬結構有很多優點 -- 至少我現在是這麼認為啦。 </p><p><br /></p><p>改到這裡,滿足了不到半年又想再改,主要有兩個原因,第一是 F/4.5 太長,實在不想墊椅子啊! 第二,主鏡到 300X 左右就上不去了,星點馬上肥掉,怎麼調焦都沒用。我問 CFF 的 Catalin 先生,他說絕對是主鏡問題,他看過一般 BK7 當基板的鏡子,distortion 時不是邊緣而已,整片都歪七扭八的,都 16" 了,好歹也要用個 supremax、pyrex 等級的。</p><p><br /></p><p>其實兩個問題都跟主鏡有關,那不換片主鏡就好了? 是沒錯啦,不過去年起全球都在缺工缺料,全球有聽過名號的製鏡師交期都是一年起跳,價錢就更不用提了。馬可先生建議找他配合的在地製鏡師,他說在義大利本地很有名喔! 可是我用名字 "Giacometti Fausto" 找了半天也沒找到什麼資料,^^" 上次 30 公分鏡好像也是 Fausto 先生製作的 (因為我們土包子看義大利名字每個都很像,所以實在記不起來到底是不是同個人),結果交貨時什麼測試資料都沒,不像美國那幾家有名的公司通通都有干涉儀測試資料。但是...... 價格便宜很多,交期只要 3 個月,配合度又高... 所以最後還是決定再賭一次。</p><p><br /></p><p>主鏡想了半天我決定作差不多 F/3.7 ~ 3.8 左右就可以;決定焦比除了鏡架高度要考慮外,也要算一下次鏡會不會太小,免得無法反射到完整的光柱,還好當時作 F4.5 時有選稍微大一點的次鏡;另外就是我很在意的 "平衡",因為鏡架變短後,原來完美的平衡必定有影響。因為 "上鏡筒" 沒改,所以萬一平衡有問題的話也只能在 "上鏡筒" 掛重量了,我心想... 大不了掛隻小折上去 ^^"</p><p><br /></p><p>馬可先生生意太好讓我多等了一個月,Fausto 先生磨好主鏡後,我又請馬可先生幫我送去鍍加強膜,也是一家義大利公司: ZAOT,多了 600 歐;隔天馬可先生發訊息説發現主鏡邊緣有磨傷,還貼了相片給我看...... 天啊,這不是不信任之下的再度不信任嗎? 真慘,當然 Fausto 先生也得重磨一片給我,因此時間又再多延了一個多月。</p><p><br /></p><p>好事多磨,終於交貨了:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiaaHbAoJnzruY1HdeFmEvrVIi_TIdipmm1zv1niuTOdDfspyyZSgshh9hqPJJ5n54lOyf9ABIJ2eLU9AAjlL89zOpjC3vxEaEqdn5D8gyG4s3ZPSrEa4UZzSirzGVgAGpMBSxzuSXIHVavWgrOcEE4Qki77KdH7K9SBAYx1RBBuExOO34Zijx5wghFohw/s3024/IMG_5872%20(1).jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3024" data-original-width="3024" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiaaHbAoJnzruY1HdeFmEvrVIi_TIdipmm1zv1niuTOdDfspyyZSgshh9hqPJJ5n54lOyf9ABIJ2eLU9AAjlL89zOpjC3vxEaEqdn5D8gyG4s3ZPSrEa4UZzSirzGVgAGpMBSxzuSXIHVavWgrOcEE4Qki77KdH7K9SBAYx1RBBuExOO34Zijx5wghFohw/w400-h400/IMG_5872%20(1).jpg" width="400" /></a></div><br /><p><br /></p><p>主鏡是鍍了保護膜啦,但也太 "工業級" 的感覺了,鏡面上都是保麗龍屑屑... >"<</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiLESlCtHfn4zFsspkuCcH24ydf4j0iS9sTCuM6pHi36SUicKVGAkVaTgy3lMnBE0VAoLo-xjKPA3Vrjg0-g9Yz28KQFlTLPM5BojMXMzDKY1Qx78QU27uJ3kOBkjCm-aIB0-gSlTz9Lj7rz04qKaZ94cSEB1jN4ZABfpdYuC8nvP2FzDelOSiYQY32isg/s3024/IMG_5873.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3024" data-original-width="3024" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiLESlCtHfn4zFsspkuCcH24ydf4j0iS9sTCuM6pHi36SUicKVGAkVaTgy3lMnBE0VAoLo-xjKPA3Vrjg0-g9Yz28KQFlTLPM5BojMXMzDKY1Qx78QU27uJ3kOBkjCm-aIB0-gSlTz9Lj7rz04qKaZ94cSEB1jN4ZABfpdYuC8nvP2FzDelOSiYQY32isg/w400-h400/IMG_5873.jpg" width="400" /></a></div><br /><p>如果精度夠好一切就都算了 -- 希望!!</p><p><br /></p><p>主鏡沒貼 center mark,不過這沒關係,自己貼還比較放心:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgCnyWgnZal9EaCzppdugnFKi64Ta-i5Tj_U5DSHQkrqd9CZIyeDfJROKR3ucmGXBF3E8YMSv1o5oGxqzyytE2Jy4HJGsdBWaNa7ZGn1XGs8_C7FjshcHbbomxE7k-Ri4U6JiQHMofBFnCAl59O3h1PN-IJ_tjHVwYttULc2dTBjZNSBJPUdLUdBJJ5AE0/s1818/FD35BDB5-2D36-40EC-A1C4-EB6FD0C10E2D.jpeg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1818" data-original-width="1818" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgCnyWgnZal9EaCzppdugnFKi64Ta-i5Tj_U5DSHQkrqd9CZIyeDfJROKR3ucmGXBF3E8YMSv1o5oGxqzyytE2Jy4HJGsdBWaNa7ZGn1XGs8_C7FjshcHbbomxE7k-Ri4U6JiQHMofBFnCAl59O3h1PN-IJ_tjHVwYttULc2dTBjZNSBJPUdLUdBJJ5AE0/w400-h400/FD35BDB5-2D36-40EC-A1C4-EB6FD0C10E2D.jpeg" width="400" /></a></div><br /><p><br /></p><p>重量比 F4.5 那片輕了半公斤左右:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjL9oJJDpDgQ9ZtAA2fyXLxmLj4e-N56v5dESCdqsJwWyJqjyY6jRbeje8zk5lG3x401GBz5UJyMsoW98B9fJJABpU1gxgQYPK4Y7vFpx7bVHQN4i3pJeYVbLZkLu-laLjlZxDbu5P2uzJwnH_SAxRUSAi_xSD2isy2EECGcyi12eL8bOot7Z5pK4P7zB4/s4032/IMG_5892.HEIC" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="4032" data-original-width="3024" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjL9oJJDpDgQ9ZtAA2fyXLxmLj4e-N56v5dESCdqsJwWyJqjyY6jRbeje8zk5lG3x401GBz5UJyMsoW98B9fJJABpU1gxgQYPK4Y7vFpx7bVHQN4i3pJeYVbLZkLu-laLjlZxDbu5P2uzJwnH_SAxRUSAi_xSD2isy2EECGcyi12eL8bOot7Z5pK4P7zB4/w300-h400/IMG_5892.HEIC" width="300" /></a></div><br /><p>組合起來測一下平衡:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhPJDzDEHRISgdazIYoKPCzoEMa2YRPDqsvRdXRXnJvS-WDQAVTUkwCvnRMuYByXTBuexVqzTpnB-5xuwbyu5uNgaEoxqdsWI1DVzEJzsvHeqksteBDfTqZKuc3DI86K3wqkxYNBr5CQti1TAGYDyZcq-KC1C8bhsiWVYsEEHUkD-nqQnB-FF9oOwNbb-U/s1776/904E0BE2-EF61-4528-B68A-BA53792CC934-1092-00000046AF8248B9.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1184" data-original-width="1776" height="266" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhPJDzDEHRISgdazIYoKPCzoEMa2YRPDqsvRdXRXnJvS-WDQAVTUkwCvnRMuYByXTBuexVqzTpnB-5xuwbyu5uNgaEoxqdsWI1DVzEJzsvHeqksteBDfTqZKuc3DI86K3wqkxYNBr5CQti1TAGYDyZcq-KC1C8bhsiWVYsEEHUkD-nqQnB-FF9oOwNbb-U/w400-h266/904E0BE2-EF61-4528-B68A-BA53792CC934-1092-00000046AF8248B9.jpg" width="400" /></a></div><br /><p>低角度不會翹頭,也不會垂頭,切換重型目鏡時也不會,阻尼 hold 得住</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjQWIBkMeEmk3R-_An07x2659-8NWVkfRDNQVE2DK29BkSx-szy7leLimDvJgKQQRxqTjUhZQEgh5B0-5wJb0YDTkSrUcd8lN26kd5lsI0JGNSgKPZ5sFg4F2Ffoboql6IDv8kWl881elZ4T85vA71ZiUYK3TQ4lLFHfSGAOGs1-fZOcZj7CD-Bx3fbHmE/s1776/89B341DC-C98A-47ED-B638-00A9B597E7FE-1092-0000004687626094.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1776" data-original-width="1184" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjQWIBkMeEmk3R-_An07x2659-8NWVkfRDNQVE2DK29BkSx-szy7leLimDvJgKQQRxqTjUhZQEgh5B0-5wJb0YDTkSrUcd8lN26kd5lsI0JGNSgKPZ5sFg4F2Ffoboql6IDv8kWl881elZ4T85vA71ZiUYK3TQ4lLFHfSGAOGs1-fZOcZj7CD-Bx3fbHmE/w266-h400/89B341DC-C98A-47ED-B638-00A9B597E7FE-1092-0000004687626094.jpg" width="266" /></a></div><br /><p><br /></p><p>垂直時高度剛好,以我的身高來說可以很自然的使用。平衡 OK,手動微調有點重手,不過感覺也還好,這要實際上場使用才知道。先來塞進車子,未來這把可是我上山的主力呀:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiWjIKyI_0GSu3wjw2CGeLrHjnJ8xSvaUT_DV8O_ye2ehekJiq9uJoJgitUt0JfcYQ-kgRtY_f2qPXyN5MGFaawuFYbOG-i-PokALl-_Hrn9ThcyKjwbyDHGkjDDul286HBNmXUueBTpEOYos3X0YoJYMyLbWghZQeOvvs9y6hdFIRlgQnFiGwGys3df_I/s1776/9C2EC041-462E-4FBF-861B-AD45DAF30FB1-1092-00000046E63DB5F8.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1184" data-original-width="1776" height="266" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiWjIKyI_0GSu3wjw2CGeLrHjnJ8xSvaUT_DV8O_ye2ehekJiq9uJoJgitUt0JfcYQ-kgRtY_f2qPXyN5MGFaawuFYbOG-i-PokALl-_Hrn9ThcyKjwbyDHGkjDDul286HBNmXUueBTpEOYos3X0YoJYMyLbWghZQeOvvs9y6hdFIRlgQnFiGwGys3df_I/w400-h266/9C2EC041-462E-4FBF-861B-AD45DAF30FB1-1092-00000046E63DB5F8.jpg" width="400" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjILL3s274KwVDbI2WPQ1IU4HuSmd0hjUw6dV-zghudMc1-YmGfqpqUp89zaADWJztxG2iMC2to-JpNcuhIsZP1YU9JgDiuk9Bis8UmYbS6y7AaUvswclMDDpDhW1pMK4ly5L5CFsjaH6eUczVBrOq0GI0WNuYoJm-QFzzhu2EanUOS2iVdPHyul1GcyQc/s1685/8E71FB36-A701-414D-AA56-10203C70072D-1092-00000046C2351458.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1123" data-original-width="1685" height="266" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjILL3s274KwVDbI2WPQ1IU4HuSmd0hjUw6dV-zghudMc1-YmGfqpqUp89zaADWJztxG2iMC2to-JpNcuhIsZP1YU9JgDiuk9Bis8UmYbS6y7AaUvswclMDDpDhW1pMK4ly5L5CFsjaH6eUczVBrOq0GI0WNuYoJm-QFzzhu2EanUOS2iVdPHyul1GcyQc/w400-h266/8E71FB36-A701-414D-AA56-10203C70072D-1092-00000046C2351458.jpg" width="400" /></a></div><br /><p><br /></p><p>沒問題,上山全套塞進 MINI Cooper 前座還能多載一人。不過真要上山不會開這台啦! 純粹示意、趣味而已 ^^"</p><p><br /></p><p>接下來就是上場實測了:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh66-peoy5oBCTy65bzjL4ObNnhv2J0_M0OXEPIhaJpQAj-xr-dFP201b_34PlN3berpxXaauKH2TSwf63EVPsgD1FbbR-36L2wUQs7X6jjQ2hLDUvWz3f_L5TAn3TEGJ0uylLswVrA6SSwTDD8U3P3jfjFOEP01PikuMhficKULFH_HSOoUvev-NRyzIw/s4032/IMG_5936.HEIC" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="4032" data-original-width="3024" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh66-peoy5oBCTy65bzjL4ObNnhv2J0_M0OXEPIhaJpQAj-xr-dFP201b_34PlN3berpxXaauKH2TSwf63EVPsgD1FbbR-36L2wUQs7X6jjQ2hLDUvWz3f_L5TAn3TEGJ0uylLswVrA6SSwTDD8U3P3jfjFOEP01PikuMhficKULFH_HSOoUvev-NRyzIw/w300-h400/IMG_5936.HEIC" width="300" /></a></div><br /><p>等天黑,又怕午後雷陣雨...</p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhk5O0AW42vG2jcvtv0fjiaJhOeaW4ISTqDhBOJqjLqSDM9Ytdxl7qK8WNUu29cKDBqf0MyksoPutjYEUIhHtjF3CHMzPvk1W_RszF_bksaG36fZac4cx2MdGZZqdEm9WhSDW35JMJC-uZWKLbwO1G9WqDF4FUUnWMUjE3T4H2KI8ZHCqiwddc171t2JxM/s1293/87F56329-5A37-4E27-AC07-6DFC69A490BE-1159-00000052740F268D.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1293" data-original-width="1179" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhk5O0AW42vG2jcvtv0fjiaJhOeaW4ISTqDhBOJqjLqSDM9Ytdxl7qK8WNUu29cKDBqf0MyksoPutjYEUIhHtjF3CHMzPvk1W_RszF_bksaG36fZac4cx2MdGZZqdEm9WhSDW35JMJC-uZWKLbwO1G9WqDF4FUUnWMUjE3T4H2KI8ZHCqiwddc171t2JxM/w365-h400/87F56329-5A37-4E27-AC07-6DFC69A490BE-1159-00000052740F268D.jpg" width="365" /></a></div><br /><p>先測對焦,連馬可先生也有點擔心計算失誤對不到焦,結果一切 OK,新支架長度做得剛剛好,連雙目視都很 OK:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjkNAj0WovLoEY0rOE9k5lC-2iPhSHtiwW_L1N389HoHKA6Md7Fbmr-KAxi27at8KxVfG5EvIACg1IKje6trKnBogHrN2L1Uhqsr_RM6Ae_LPki9HkPtEls97tIqapaxXWclhKmAWIvYnqtdX3EwzMz5ICW9est2OzywXKczKN6lQgZVmqtyJnbpVoLYVQ/s1182/B5CDD477-55B1-4B31-AC9E-AA4AF7FBCFC7-41539-000019799F9C4045.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1182" data-original-width="1182" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjkNAj0WovLoEY0rOE9k5lC-2iPhSHtiwW_L1N389HoHKA6Md7Fbmr-KAxi27at8KxVfG5EvIACg1IKje6trKnBogHrN2L1Uhqsr_RM6Ae_LPki9HkPtEls97tIqapaxXWclhKmAWIvYnqtdX3EwzMz5ICW9est2OzywXKczKN6lQgZVmqtyJnbpVoLYVQ/w400-h400/B5CDD477-55B1-4B31-AC9E-AA4AF7FBCFC7-41539-000019799F9C4045.jpg" width="400" /></a></div><br /><p><br /></p><p>把他放很低角度再用超重目鏡兩顆測試:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjmOzp5B5WHfzSxh9wn0dVL4UH57t0xZo4bNt67Ug_BRs22zpoQoOfoxQB3IDgNiAGdYGWRn1cWa3lKwJAk5fhkvMSWrVSBIx3QKPtVtbXpfLA-2MqSkUCwei5nerU_3rIdkacnpB4OCahHwI_LSRK-ouO-AxrTbnMp1yidS8xxoAxf3iP1Ey9vbBjUMbY/s1182/3FFA1FC9-1917-41B9-9EA0-5CB98B83DC8A-41539-00001979CA29DE7E.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1182" data-original-width="1182" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjmOzp5B5WHfzSxh9wn0dVL4UH57t0xZo4bNt67Ug_BRs22zpoQoOfoxQB3IDgNiAGdYGWRn1cWa3lKwJAk5fhkvMSWrVSBIx3QKPtVtbXpfLA-2MqSkUCwei5nerU_3rIdkacnpB4OCahHwI_LSRK-ouO-AxrTbnMp1yidS8xxoAxf3iP1Ey9vbBjUMbY/w400-h400/3FFA1FC9-1917-41B9-9EA0-5CB98B83DC8A-41539-00001979CA29DE7E.jpg" width="400" /></a></div><br /><p><br /></p><p>切換目鏡時平衡完全沒跑掉,可以很安心的用高倍看土星。不過畢竟是 F/3.75 的鏡子,有沒有用彗差修正鏡差很多,未來 Paracorr 應該會粘在對焦座上了:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg7HyYgUnq5znOfAeJ7j9HWS8IT29NA6_j0_cGYfSAPbbC65KFmtw43mvlgUGQzWtTHBuVM7kymXTKD_7TtVVLuHlscsoNYsdX-G9AnVo21r2p_6usv39U3DMow3oqtuoBQnagLjnvmPvXw4pNLksIq0u_dqOt_G8FHNFt-0JoWipgM1b7aKul-lQg3Kvc/s1182/82DB286B-9757-48BE-B823-CF304FF5F9BE-1092-000000469BBD12C3.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1182" data-original-width="1182" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg7HyYgUnq5znOfAeJ7j9HWS8IT29NA6_j0_cGYfSAPbbC65KFmtw43mvlgUGQzWtTHBuVM7kymXTKD_7TtVVLuHlscsoNYsdX-G9AnVo21r2p_6usv39U3DMow3oqtuoBQnagLjnvmPvXw4pNLksIq0u_dqOt_G8FHNFt-0JoWipgM1b7aKul-lQg3Kvc/w400-h400/82DB286B-9757-48BE-B823-CF304FF5F9BE-1092-000000469BBD12C3.jpg" width="400" /></a></div><br /><p><br /></p><p>鏡子大看東西爽度真的很高,測焦時我光看絲絲縷縷的東面紗就看得眼睛離不開目鏡;高倍只測到 290X 左右,不過看起來輕鬆寫意,星點相當銳利。</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhAEqL7-Xm6DZQkawWVqwcZMtL68bB5V_rAFpyfMlz9rx0nllE1lCGaZSNA9_tXGi1Om6DSKXeWfqQIXhBLHyAgz3yz3dsSz4t2NxvqVQgqbGkExCRdeL3A1MyFHHejFhgpw86udFKfZkOoXEnnYJaturE2tGOCc8kaSNvY8a8qstNK_5IjPM5tke84d4c/s1182/4317E5A8-6438-473F-92EB-3F88EA001B8F-41539-00001979B605BD5C.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1182" data-original-width="1182" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhAEqL7-Xm6DZQkawWVqwcZMtL68bB5V_rAFpyfMlz9rx0nllE1lCGaZSNA9_tXGi1Om6DSKXeWfqQIXhBLHyAgz3yz3dsSz4t2NxvqVQgqbGkExCRdeL3A1MyFHHejFhgpw86udFKfZkOoXEnnYJaturE2tGOCc8kaSNvY8a8qstNK_5IjPM5tke84d4c/w400-h400/4317E5A8-6438-473F-92EB-3F88EA001B8F-41539-00001979B605BD5C.jpg" width="400" /></a></div><br /><p><br /></p><p>隔幾天後終於等到機會測高倍了,目標是天頂天鵝脖子附近的幾個小小行星狀星雲,首先是別名足跡星雲 (footprint nebula) 的 Minkowski 1-92:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjBbz9OxhzlIjAnjCmqi4Rp9PsdSNKPMOClUgV7dDFZ_Zn6HSOWa58WhAkAVPSyEooPSPyWO57Q7-bN1C1sZgVauiJPzOe3Mk8cRrwNoamt595tLOxeAgjSa_Oco7skp-tptG-cFU5Jq8QqwIPUJXMRo7Kih5WDZCMnOjHDNGMvACbOtMYGBRv1BP7vB_Q/s2501/PN(M1-92)-DOB406-473X-2023.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2501" data-original-width="2486" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjBbz9OxhzlIjAnjCmqi4Rp9PsdSNKPMOClUgV7dDFZ_Zn6HSOWa58WhAkAVPSyEooPSPyWO57Q7-bN1C1sZgVauiJPzOe3Mk8cRrwNoamt595tLOxeAgjSa_Oco7skp-tptG-cFU5Jq8QqwIPUJXMRo7Kih5WDZCMnOjHDNGMvACbOtMYGBRv1BP7vB_Q/w398-h400/PN(M1-92)-DOB406-473X-2023.JPG" width="398" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Minkowski 1-92 (406mm f/3.75 Dobsonian, 3.7mm Ethos + Paracorr II for 473X)</td></tr></tbody></table><br /><p><br /></p><p>M1-92 我已經看過很多、很多... 次了,因為小,所以要放大很多倍,分解能也要夠,當然 seeing 不能太差,才能看清楚分開兩瓣的雲氣。我做到 473X (3.7mm Ethos,加上大約多 1.15X 的 paracorr II) 星點依舊夠紮實,相當不錯呢! 至於星點測試我不是很有經驗,我自己看是覺得 airy disk 外大概只有一環,所以應該至少有 1/8 wave length 以上的精度吧? 以目鏡下的結果而言我已經很滿意了,也許 Fausto 先生真的是位沒太多人知道的神人,總之沒有賭錯真是太好了!!</p><p><br /></p><p>M1-92 不遠處是另一個<a href="http://s00639.blogspot.com/2017/07/ic-4997-campbells-hydrogen-star-aro11.html">很特別的行星狀星雲 ARO 11</a>:</p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi6DkhfM48hyqEDLUggE7PvbQCCJxaeYhISvvn1CgPGoOrgWWcqHvTCZymhheF85RD_4rSI_LIsv0Z7frduQqsHiaMl0gkBCxZ_Rl9EZAZfwtvTouz7k3iRkbIu82SWYwThPFRM8MuLhHwDv6jMjDA9-N-2VvIcT7lgQQ6B7rCPmpn7gmfWwGNU960iF00/s1818/PN(ARO11)-DOB406-473X-2023.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1818" data-original-width="1818" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi6DkhfM48hyqEDLUggE7PvbQCCJxaeYhISvvn1CgPGoOrgWWcqHvTCZymhheF85RD_4rSI_LIsv0Z7frduQqsHiaMl0gkBCxZ_Rl9EZAZfwtvTouz7k3iRkbIu82SWYwThPFRM8MuLhHwDv6jMjDA9-N-2VvIcT7lgQQ6B7rCPmpn7gmfWwGNU960iF00/w400-h400/PN(ARO11)-DOB406-473X-2023.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">ARO 11 (406mm f/3.75 Dobsonian, 3.7mm Ethos + Paracorr II for 473X)<br /></td></tr></tbody></table><br /><p> ARO 11, 別名 Campbell's Hydrogen Star,早在 1893 年美國天文學家威廉康貝爾 (William Campbell) 就發現它了,康貝爾是用光譜望遠鏡 "目視" 發現其光譜特性與一般星星不同。網路上找到的資料很多都說 ARO11 是所謂的 沃夫-瑞葉 星 (Wolf-Rayet Star),同樣是走到恆星的演化後期,但看起來質量比一般的行星狀星雲又更大;沃夫-瑞葉星的光譜特徵很特殊 (根據其光譜特徵有強烈氦與氮的用 WN 表示,氦、碳、氧的用 WC 表示;SIMBAD 上對 ARO11 的光譜分類就是 WC9)。記得之前曾用 O III 認沒成功,查了半天資料才發現是一個很特殊,得用 H-beta 才會現身的目標;這次因為口徑夠大而且也忘了要用 H-beta,不過把倍率拉到 473X 後直接認出盤面就確定了。</p><p><br /></p><p>最後一個是也是在天鵝長脖子邊的 NGC 6842 </p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjgyAr0aDVmJX-QIn0OFx6gjunhpOhBtqTbvgJLR7uMkPeDAccrX4-fU1auhVqt5HfdodL8Z0FiRdueP0vPqH7cx8CvKwPtRfF9KbnNJcBpV0lKJE6zw_bBJcXMajLfZTDbMHyVGC38WPFyGKJbvpyR3AjtFxI7CY8FAYleddf_NxP9sGK3zNL7Ur7qolA/s1818/N6842-DOB406-292X-2023.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1818" data-original-width="1818" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjgyAr0aDVmJX-QIn0OFx6gjunhpOhBtqTbvgJLR7uMkPeDAccrX4-fU1auhVqt5HfdodL8Z0FiRdueP0vPqH7cx8CvKwPtRfF9KbnNJcBpV0lKJE6zw_bBJcXMajLfZTDbMHyVGC38WPFyGKJbvpyR3AjtFxI7CY8FAYleddf_NxP9sGK3zNL7Ur7qolA/w400-h400/N6842-DOB406-292X-2023.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 6842 (406mm f/3.75 Dobsonian, 6mm Ethos + Paracorr II + O III filter for 292X)</td></tr></tbody></table><br /><p>後來翻資料才發現原來<a href="https://s00639.blogspot.com/2022/10/blog-post.html">去年我有看過這個目標</a>,居然完全沒印象!! 不過這次不用 averted vision,加濾鏡後正正就能看到了,大口徑真是讚。</p><p><br /></p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhsulfopH2ZnYqhqnXB4Iyyz57LjAJmuQopcEXdpIEP1ZXtBHnsTO9PTHeMNGYHRczaPmzSioupsLpLcCBfiVyefb7jcmlrlovH71VcC6YxSsGtwBkBNx_S6nrRjiJ9WsaR1YE06wXQ59S2wnonJyA0lsADSlzejR7h99I6-nsGtliFhI9bmXspciUY1xo/s3024/IMG_5975.HEIC" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3024" data-original-width="3024" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhsulfopH2ZnYqhqnXB4Iyyz57LjAJmuQopcEXdpIEP1ZXtBHnsTO9PTHeMNGYHRczaPmzSioupsLpLcCBfiVyefb7jcmlrlovH71VcC6YxSsGtwBkBNx_S6nrRjiJ9WsaR1YE06wXQ59S2wnonJyA0lsADSlzejR7h99I6-nsGtliFhI9bmXspciUY1xo/w400-h400/IMG_5975.HEIC" width="400" /></a></div><br /><p><br /></p><p>就等著什麼時候帶出門囉!</p>s00639http://www.blogger.com/profile/08382086616742866311noreply@blogger.com2tag:blogger.com,1999:blog-7477593545230087753.post-69411407098977346922023-08-11T17:49:00.004+08:002023-08-11T17:56:07.308+08:00Messier 7 附近的星團與行星狀星雲觀察記錄<p>這也是跟著人家走的類似觀察題目,應該是雜誌 6 月吧? Howard Banich 的專欄;不過大師常用的是 30 吋巨砲,我的 8 吋鏡能跟點屑屑就不錯了。</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiXRDHQCx196-SsUS7VGglCKaIVbSRE71vfAeFqvpWNDpw8Z0RhLJHY7HQCihQk4gtuTX5j2PYuJDZOnLVHe78jUn7EPNqz3UIfWWYZNVdLLGjMh8b-cBLRymygw0YXApGUOy4P7rLgjLLXcU4S3ZtSz-qSWGmMUQypAWFAEaPxXat8iTdTKbwr7807Ke4/s3024/IMG_5661.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3024" data-original-width="3024" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiXRDHQCx196-SsUS7VGglCKaIVbSRE71vfAeFqvpWNDpw8Z0RhLJHY7HQCihQk4gtuTX5j2PYuJDZOnLVHe78jUn7EPNqz3UIfWWYZNVdLLGjMh8b-cBLRymygw0YXApGUOy4P7rLgjLLXcU4S3ZtSz-qSWGmMUQypAWFAEaPxXat8iTdTKbwr7807Ke4/w400-h400/IMG_5661.HEIC" width="400" /></a></div><br /><p><br /></p><p>這個題目是在一個確定的範圍附近內挖寶,跟之前習慣在茫茫星海中找目標的玩法不同;位在天蠍尾巴上方的 M7 是一般稍有觀星經驗同好可以輕易找到的目標,之後就是對照星圖慢慢來掏金啦。先看星團,目標都標在下圖,我自己覺得的難易度 從 "難" 到 "易" 依序是 NGC6455 > NGC 6444 > NGC 6453 > Trumpler 30,先從簡單的開始:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEidfReVk0xh_NAHriMVTZjEdfWHrXGK4X-oP4QW4LEDYNyugFF7wA86SxdPu6yx2bFPI48LXq93ZkTDhI26ieDG-d3l5jYyxbK_A6DUKKPSec75HCJpRjvbY2Y0R3vzmqnaulCKhNDAkdiQ0gB8WrvnHnX2KRWsruk5Pxn1QvNGdHAj10-PWDo2iLOCAcc/s1179/IMG_5755.PNG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1179" data-original-width="1179" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEidfReVk0xh_NAHriMVTZjEdfWHrXGK4X-oP4QW4LEDYNyugFF7wA86SxdPu6yx2bFPI48LXq93ZkTDhI26ieDG-d3l5jYyxbK_A6DUKKPSec75HCJpRjvbY2Y0R3vzmqnaulCKhNDAkdiQ0gB8WrvnHnX2KRWsruk5Pxn1QvNGdHAj10-PWDo2iLOCAcc/w400-h400/IMG_5755.PNG" width="400" /></a></div><br /><p><br /></p><p>最簡單的 Trumper 30 非常好找,一眼就認出來了:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh89kkcSd-Kt5Y2qzX7SAv_LmSvS4-gjOtP0kCl1FPBOZsQmCnKwq_uqxRZFlkp54hgjj_348XeZ-ss6DjYe1KMXujWpW1QTIDjpXeGmGkMbmqVQP2NUlSepNDiTovBj1rp2fIzWmOQsJ5759-dzhf539dB5Hps-nvdI4e75HyuZ_WEDY2eDfpkhKnKj-k/s2332/IMG_5753.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2332" data-original-width="2332" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh89kkcSd-Kt5Y2qzX7SAv_LmSvS4-gjOtP0kCl1FPBOZsQmCnKwq_uqxRZFlkp54hgjj_348XeZ-ss6DjYe1KMXujWpW1QTIDjpXeGmGkMbmqVQP2NUlSepNDiTovBj1rp2fIzWmOQsJ5759-dzhf539dB5Hps-nvdI4e75HyuZ_WEDY2eDfpkhKnKj-k/w400-h400/IMG_5753.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Trumpler 30 (Mewlon-210 f/11.5; 12.5mm EP for 193X)</td></tr></tbody></table><br /><p>星團內主要的亮星大約 10.X 等,其它很多 11.X 等星散落其間,目鏡走到這邊絕對不會懷疑這就是一個星團 (比起後面兩個疏散星團),最後用到 193X 畫圖。貼張 DSS 相片對照:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEibkXcukYP09An7a3u4C1Rn30Lju3gaNmSefmUNwk-BNbSYJ7xuvQ_qhh3SJeRFa4yKOOQPludJQdhe79TkG7UT2k4Iv_Ojns1lhEv_A3sFzho8PcbIYCsyp9slBForv8CvGGSQjuZm937z4thM-YXzuLiPRJGOBpG2e0YN6sGnEVfAp5M3lh3OwWAqJu8/s354/tr30.png" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="354" data-original-width="353" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEibkXcukYP09An7a3u4C1Rn30Lju3gaNmSefmUNwk-BNbSYJ7xuvQ_qhh3SJeRFa4yKOOQPludJQdhe79TkG7UT2k4Iv_Ojns1lhEv_A3sFzho8PcbIYCsyp9slBForv8CvGGSQjuZm937z4thM-YXzuLiPRJGOBpG2e0YN6sGnEVfAp5M3lh3OwWAqJu8/w399-h400/tr30.png" width="399" /></a></div><br /><p><br /></p><p>第二容易的是球狀星團 NGC 6453, 外觀分類為 Class IV,距離我們 3.78 萬光年遠,大小約 21.5 arcmin:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhzjeSPaBD6fDcdukzhNTNKNbZDFVjTDLMg1UBztDu2-k7xyuVOSoxiB-vofqC2MfxatogTLKGzGE3Y2DmY5VJM6i68kwc6rc4tZB4syi4gjgC2Ip1YVH-utlT7pdHDkUKoWqO_unisiI6vtNgJyCyKoPJkt77cUVHrNk--JPYp-vZQkKP-iKU_y-kmFek/s2316/IMG_5754.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2316" data-original-width="2316" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhzjeSPaBD6fDcdukzhNTNKNbZDFVjTDLMg1UBztDu2-k7xyuVOSoxiB-vofqC2MfxatogTLKGzGE3Y2DmY5VJM6i68kwc6rc4tZB4syi4gjgC2Ip1YVH-utlT7pdHDkUKoWqO_unisiI6vtNgJyCyKoPJkt77cUVHrNk--JPYp-vZQkKP-iKU_y-kmFek/w400-h400/IMG_5754.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 6453 (Mewlon-210 f/11.5; 6mm Ethos for 400X)</td></tr></tbody></table> <br /><p><br /></p><p>雖然拆不出星團本身的個別星點,不過位在銀河附近,前景有太多星點了,大大小小、明明暗暗交織分佈,讓整個畫面很有深淺的立體感,尤其在辨識出目標的那刻會有: "啊~ 原來深處有東西... " 的那種感覺,非常特別。</p><p><br /></p><p>第二難的 NGC 6444 離 NGC 6453 不遠,目鏡移一下 "應該" 就到了,不到 0.5 度視野,不過... 到底在哪裡呢?</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEitM7S8Jh-KKWCgUg0KfBrE-Z33TFo5R_YFUwy6_aKbu-YVbS3e1XD-CWE6Fm3uXMRi5sUEWTQFtmb9PTGznApG2BOyPVDcWJd6Lfvr6dB8t1XcrAw9KNCPWrzoTwxuHpk_tEjdzXHvXxhdfe9B_O5rKFmrpx4WYKW1AwvY0gqlUYlwYbcc4z-z4AOHmUg/s2594/IMG_5752.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2594" data-original-width="2594" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEitM7S8Jh-KKWCgUg0KfBrE-Z33TFo5R_YFUwy6_aKbu-YVbS3e1XD-CWE6Fm3uXMRi5sUEWTQFtmb9PTGznApG2BOyPVDcWJd6Lfvr6dB8t1XcrAw9KNCPWrzoTwxuHpk_tEjdzXHvXxhdfe9B_O5rKFmrpx4WYKW1AwvY0gqlUYlwYbcc4z-z4AOHmUg/w400-h400/IMG_5752.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 6444 (Mewlon-210 f/11.5; 10mm Ethos for 240X)</td></tr></tbody></table><br /><p>電子星圖 Skysafari 的星點分佈還算準,所以耐心分辨可以定位到沒問題,比較困擾的是範圍邊界在哪? 先貼張 DSS 的相片,圖是引用 <a href="http://ngcicproject.observers.org/dss/">"The NGC/IC Project" 網站</a>裡連結過去的:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgaO8jpnI7qa5rebDvA3v4xfCQAy5w-YfhpT5KD9Ju_dY0JIB7A5ZnZj4lAKDvRiNekyRTbhGI4Hc76Eq2oOOmRVOQnc-xehI7HH1kM-7J3Odj8MxDfRjAocNMGiB_4ri2M0uIlys3jCX9zJPmmVptyG3arrHDQJLQyXMU2hZthfvNgYz7qZxz2DoWdZl4/s353/n6444.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="353" data-original-width="353" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgaO8jpnI7qa5rebDvA3v4xfCQAy5w-YfhpT5KD9Ju_dY0JIB7A5ZnZj4lAKDvRiNekyRTbhGI4Hc76Eq2oOOmRVOQnc-xehI7HH1kM-7J3Odj8MxDfRjAocNMGiB_4ri2M0uIlys3jCX9zJPmmVptyG3arrHDQJLQyXMU2hZthfvNgYz7qZxz2DoWdZl4/w400-h400/n6444.jpg" width="400" /></a></div><br /><p><br /></p><p>看起來我素描的星團範圍大致沒錯。Dreyer 對這個目標的描述是 "cl, vL, vRi, st 12...13",我來翻譯一下這段密文,意思是: cluster, very Large, very Rich, star 12 ~ 13 等。cluster 當然沒問題,very large 就有點怪了,3 arcmin 算小吧? 對照起 80 arcmin 的 Messier 7 只是個小不點而已;NGC 6444 距離我們 1800 光年遠,Messier 7 距離我們 980 光年遠,所以可以想像 Messier 7 就夾在我們跟 NGC 6444 中間左右的感覺。</p><p><br /></p><p>這幾個星團中最難的 NGC 6455,事後對照相片後更加困惑了......</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi2A4TWn9gl-5xI1RveDvGmN2PbVIOMWXhPtbVHAlf4O3fH1gzIKUO8gcOc25xUQMKiHd3mQJCz99dapNsdxYazbQOJGwaPp8svJd1_5jbqahKMg64wF3VqB8dGDn5URF-EqwwyXmNBJHJ7nANy_Ftkq74uBHrHqn3cX9wpv8HzOJ-PcKAQWZbh_W2szVY/s2332/IMG_5751.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2332" data-original-width="2332" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi2A4TWn9gl-5xI1RveDvGmN2PbVIOMWXhPtbVHAlf4O3fH1gzIKUO8gcOc25xUQMKiHd3mQJCz99dapNsdxYazbQOJGwaPp8svJd1_5jbqahKMg64wF3VqB8dGDn5URF-EqwwyXmNBJHJ7nANy_Ftkq74uBHrHqn3cX9wpv8HzOJ-PcKAQWZbh_W2szVY/w400-h400/IMG_5751.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 6455 (Mewlon-210 f/11.5; 10mm Ethos for 240X)</td></tr></tbody></table><br /><p>這是 DSS 的相片:</p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgnK2uIryfiLUnLGrPfosbqoP_HIw3D4YgJ_-uZdZWn0NmBssF8awkVGr6b5XUOLjECfmlZsVOoQQewyJQAGxprEFETIYF7rhWCYVgHDYRbsyRdGedfps6cpbgM5TWCdZI4T1dQlmyiPaUDEa_49hdG-PosiVhDxC7zrS0TEicFvON9t8YH5Z45RgwYP7A/s353/n6455.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="353" data-original-width="353" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgnK2uIryfiLUnLGrPfosbqoP_HIw3D4YgJ_-uZdZWn0NmBssF8awkVGr6b5XUOLjECfmlZsVOoQQewyJQAGxprEFETIYF7rhWCYVgHDYRbsyRdGedfps6cpbgM5TWCdZI4T1dQlmyiPaUDEa_49hdG-PosiVhDxC7zrS0TEicFvON9t8YH5Z45RgwYP7A/w400-h400/n6455.jpg" width="400" /></a></div><br /><p>這是 2MASS 的:</p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhhMwDFAMFyWEhgq0zf0J9U6AbIrDGM-5yo94XuyXt3HqqlzQFVkRXWnQ95uWcs3VCggZk-fHukSCUd7rRvrq2JbVydIrser7aJVGYY7T5OjC_D6d5YsRk6EIy3anQrd29yzNTN4SxxVCoYg1dxctYGtfX1TC-Ab-zjb6cEE2rGfQaztdH_kktAGON73xE/s840/NGC_6455_2MASS.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="564" data-original-width="840" height="269" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhhMwDFAMFyWEhgq0zf0J9U6AbIrDGM-5yo94XuyXt3HqqlzQFVkRXWnQ95uWcs3VCggZk-fHukSCUd7rRvrq2JbVydIrser7aJVGYY7T5OjC_D6d5YsRk6EIy3anQrd29yzNTN4SxxVCoYg1dxctYGtfX1TC-Ab-zjb6cEE2rGfQaztdH_kktAGON73xE/w400-h269/NGC_6455_2MASS.jpg" width="400" /></a></div><br /><p>我畫的主星點跟這張比較像。網路上資料大部分說 NGC 6455 是 "star cloud" 或 "star association",因此看起來應該類似 Messier 24 的感覺,除了較亮的星點外背景是星點密到霧霧一片的模樣。Dreyer 的密文是 "cl, rr, st eS+neb",翻譯一下是: "cluster, partially resolved some star seen (rr 的譯文), extremely Small with nebula (eS+neb 的譯文)",所以 Dreyer 看到的 "nebula" 應該是密到霧狀的星點 ---- ㄜ... 我是看不到啦。</p><p><br /></p><p>挖了幾個星團後,隔幾天換挖行星狀星雲,同樣的先把挖到的目標全部標示在下圖:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhh1-WE_NhRO3Ooiw8-l6Bauy9gJzYBscZfV8xLvxnbe-tHQryw1zmdIl7WVyWUoNwnQ3PbTaTQ5vFEgEUPlMNV-O5AZEwj139DRUccf0TlB31afYHkNP7OcnrFRC3gi7XDHRra7VDfgA4NMCYoJwp-kJbxofuxP3qgFdsnDmVBMFWqrZMCIpmk4pZBtc4/s1407/IMG_5825.PNG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1407" data-original-width="1179" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhh1-WE_NhRO3Ooiw8-l6Bauy9gJzYBscZfV8xLvxnbe-tHQryw1zmdIl7WVyWUoNwnQ3PbTaTQ5vFEgEUPlMNV-O5AZEwj139DRUccf0TlB31afYHkNP7OcnrFRC3gi7XDHRra7VDfgA4NMCYoJwp-kJbxofuxP3qgFdsnDmVBMFWqrZMCIpmk4pZBtc4/w335-h400/IMG_5825.PNG" width="335" /></a></div><br /><p><br /></p><p>這幾個的難度除了 Hoffleit 2-1 特別困難以外其他幾個都差不多,共同的特徵就是 "小",然後都要靠 O-III 幫忙才好認;除此之外就是每個的名字都很多,也很混亂,所以我先整理一下好了。</p><p><br /></p><p>以上面星圖顯示的第一姓名為主:</p><p><b>Cannon 2-1</b> = He 2-303 = Sa 2-263 = (無 Wray) = ESO 394-10 = Pk 356-04.1 = PN G356.2-04.4</p><p><b>Wray 16-311</b> = He 2-28 = Sa 2-247 = Wray 16-311 = ESO 393-29 = Pk 355-03.3 = PN G355.7-03.5</p><p><b>Hoffleit 2-1</b> = (無 He) = Sa 2-253 = Wray 16-316 = ESO 393-37 = Pk 355-04.1 = PN G355.4-04.0</p><p><b>Henize 2-308</b> = He 2-308 = Sa 2-269 = Wray 16-333 = ESO 394-13 = Pk 356-04.2 = PN G356.7-04.8</p><p><b>Haro 1-42</b> = He 2-310 = Sa 2-270 = Wray 16-334 = ESO 394-14 = Pk 357-04.1 = PN G357.2-04.5</p><p><br /></p><p>第一個,Cannon 2-1:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiv3YQF1fGu25wvhgLaSMGj2zG5V2nFw7Xu0TDacbY4IRpaHem2MxzjvD_Jq-zU8oNOKJq_eaCo_qam09d5_46maHYNqNg_fSdSwqQIGJwu01CjRuPGZxMyjMIBf_FtviLD1kBGL2m8mYZIQaIdFflSp6nY6GXUL-IXU1FNmMe0pmyaZDSk_yVODy5XztM/s2158/IMG_5820.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2158" data-original-width="1532" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiv3YQF1fGu25wvhgLaSMGj2zG5V2nFw7Xu0TDacbY4IRpaHem2MxzjvD_Jq-zU8oNOKJq_eaCo_qam09d5_46maHYNqNg_fSdSwqQIGJwu01CjRuPGZxMyjMIBf_FtviLD1kBGL2m8mYZIQaIdFflSp6nY6GXUL-IXU1FNmMe0pmyaZDSk_yVODy5XztM/w284-h400/IMG_5820.JPG" width="284" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Cannon 2-1 (Mewlon-210 f/11.5; 10mm Ethos for 240X; with/without O III)</td></tr></tbody></table><br /><p><br /></p><p>如果不是手拿濾鏡滑上目鏡、滑下目鏡作 "Blink" 而已的話,還想素描一下留個紀錄,那就要多找幾個星點當對照用,對照位置也對照亮度,素描時也要比平常多留意一下各星點的亮度差異,這樣紀錄的結果就更有參考價值了。</p><p><br /></p><p>第二個是 Wray 16-311,這個位置在前幾天才找過的 NGC 6453 跟 NGC 6444 附近再外側一些,才走過,所以目鏡移過去時覺得星點分佈頗為熟悉:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjgfLkwYj1abTIX-FOBtZpTX4BeTgYGzZS27kqFerxDkhKMye7n9ja70SuTNUai1EM-FWlp6PS8zaqAaX8hnlmzz88aRIRAzedQHxxeRpOQYqh8cjDpfc0rlRAFP0RYROieW3Sid2-Ai4KoA1fj-KEpcB8UPnnR5Y52Y9QgL_fZcYuio8GvHjrn3apfrRc/s2140/IMG_5821.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2140" data-original-width="1544" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjgfLkwYj1abTIX-FOBtZpTX4BeTgYGzZS27kqFerxDkhKMye7n9ja70SuTNUai1EM-FWlp6PS8zaqAaX8hnlmzz88aRIRAzedQHxxeRpOQYqh8cjDpfc0rlRAFP0RYROieW3Sid2-Ai4KoA1fj-KEpcB8UPnnR5Y52Y9QgL_fZcYuio8GvHjrn3apfrRc/w289-h400/IMG_5821.JPG" width="289" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Wray 16-311 (Mewlon-210 f/11.5; 10mm Ethos for 240X; with/without O III)<br /></td></tr></tbody></table><br /><p>套上 O-III 後星點消失大半,唯獨目標本體變亮的感覺,也有稍微大一點啦。</p><p><br /></p><p>第三個 Hoffleit 2-1 是這次差點搞不定的目標:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgyMBoXQDcrLYU0ju4mJEnmCnG5nDtn3r9H9hCsLqqoTat93EvPtnj-BeqgSKqnrv3Pa6KsywSiE4kpWV6BHgZeoJ7v7QEvEWHuj5ku-N1rtPfgL2kb48YELE0CgyPghD7sZum9Pl4bGDoXSD3h3sux1PwBeQKAmP5GVUFFRhj4Hm4JMEio9YtVGrMdqbw/s2115/IMG_5822.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2115" data-original-width="1563" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgyMBoXQDcrLYU0ju4mJEnmCnG5nDtn3r9H9hCsLqqoTat93EvPtnj-BeqgSKqnrv3Pa6KsywSiE4kpWV6BHgZeoJ7v7QEvEWHuj5ku-N1rtPfgL2kb48YELE0CgyPghD7sZum9Pl4bGDoXSD3h3sux1PwBeQKAmP5GVUFFRhj4Hm4JMEio9YtVGrMdqbw/w295-h400/IMG_5822.JPG" width="295" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Hoffleit 2-1 (Mewlon-210 f/11.5; 10mm Ethos for 240X; with/without O III)</td></tr></tbody></table><br /><p>我把定位區域縮到很小很小了,目標周遭也有幾個 +12.X 等的參考星點,但夜深之後這邊的角度已低,觀測條件越來越差,套上 O-III 後都快失明了,UHC 又不太夠力,看了許久是有認出目標啦,但跟參考星點間的相對位置我一直無法精確定出來,最後就只有這樣的成果而已。</p><p><br /></p><p>這三個之後,目鏡移到 Messier 7 北側,放棄了 M 1-30 (Wray 16-322);前面這個 Hf 2-1 的視星等是 +13.8 已經看得要死不活了,M 1-30 的視星等是 +14.69,怎麼有可能看到? 還是等 8 吋長到 16 吋再試了。</p><p><br /></p><p>北側我抓兩個,比較靠近的是 Heniz 2-308:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhF_LJmYaQMkE-w6bLeqKyER7zZAfRAGL-Xpv1uy2D2s60V9IR2ejYGEumcGuqhzpRykdkFxnOLWeOmcaO__VQixmJaota-LdcWKVG5p4vO1wJUujt7AqTy0NSumZBdg5UfYoyvrCoiUOhn4VjhFLLifZ5-h3gx8QA6_7fD8ERmgRVLk94-LAmFm4ktqq8/s2182/IMG_5823.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2182" data-original-width="1516" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhF_LJmYaQMkE-w6bLeqKyER7zZAfRAGL-Xpv1uy2D2s60V9IR2ejYGEumcGuqhzpRykdkFxnOLWeOmcaO__VQixmJaota-LdcWKVG5p4vO1wJUujt7AqTy0NSumZBdg5UfYoyvrCoiUOhn4VjhFLLifZ5-h3gx8QA6_7fD8ERmgRVLk94-LAmFm4ktqq8/w278-h400/IMG_5823.JPG" width="278" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Heniz 2-308 (Mewlon-210 f/11.5; 10mm Ethos for 240X; with/without O III)<br /></td></tr></tbody></table><br /><p>這個的是亮度是 +13,但經過前一個的洗禮之後覺得不怎麼難;目標夾在兩個 10.X ~ 11.X 的 "亮" 星斜線中間,所以可以很清楚且精準的把位置畫出來。</p><p><br /></p><p>最後一個是離 Messier 7 稍遠的 Haro 1-42:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhUChOhDtFmBligWafc1mWc8v89pu_cwtVSQ7BKjLLjLrZyEjMaENvhDI6uBXPO4DW6mZ9tqYHgDu6sviqxUXRo7aQYo8fkEvQCfuFxfQSbMDDkPiAm1F6Acu8BaMQnEQRc50ZMz6W18aHBMiNRMbWJmBdCixgr8Yahn-z8JxdiE-m9vTqIHHcFPny_5kU/s2164/IMG_5824.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2164" data-original-width="1528" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhUChOhDtFmBligWafc1mWc8v89pu_cwtVSQ7BKjLLjLrZyEjMaENvhDI6uBXPO4DW6mZ9tqYHgDu6sviqxUXRo7aQYo8fkEvQCfuFxfQSbMDDkPiAm1F6Acu8BaMQnEQRc50ZMz6W18aHBMiNRMbWJmBdCixgr8Yahn-z8JxdiE-m9vTqIHHcFPny_5kU/w283-h400/IMG_5824.JPG" width="283" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Haro 1-42 (Mewlon-210 f/11.5; 10mm Ethos for 240X; with/without O III)<br /></td></tr></tbody></table><br /><p>視星等亮度 +12.6,對眼睛而言甜如糖果,很輕鬆的就找到位置並畫下來。</p><p><br /></p><p>位置再推遠一些,往射手座的方向走,這附近的行星狀星雲還真多,有 +13.3 的 Perek 1-11、+11.1 的 Haro 1-50、+11.7 的 M 3-21... 不過這幾個都還沒去找。這些看過的或還沒去找的小小行星狀星雲,雖然都太小看不到什麼細節,不過若純粹以挖寶的角度來説,這邊還真是一塊寶地呢!!</p><p><br /></p>s00639http://www.blogger.com/profile/08382086616742866311noreply@blogger.com0tag:blogger.com,1999:blog-7477593545230087753.post-10118440808947729672023-07-21T17:49:00.001+08:002023-07-21T17:49:15.285+08:00夾在天蠍腳與蛇夫腳間的一些球狀星團觀察<p>夏夜天蠍的上方是抓著長蛇的蛇夫先生,就是那個想到球狀星團就會聯想到的蛇夫座;夾在蠍子左腳跟蛇夫右腳之間除了 M 字輩的幾個球狀星團以外, NGC 輩的更有一大堆,比較有看頭的以前都看過了,最近又多畫了幾個:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjKO5yr792YYeZiH0VZvqX3h6Q4I5Kj1amazgGp_QGVoUCgi_BL6MKFX1WPzna-FhH6UJ-9Ii0NIhMOEg6pVSPUYww8yJZQH236_WONOeEslxHM06VWlt8HnjbI65DqVVKI19UB4J1ULUKQX1jjbaF0uwL_ZtwBShb3RG05lZEFGmvElBTqKCaMNE7mwyk/s966/GCLOT.png" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="711" data-original-width="966" height="472" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjKO5yr792YYeZiH0VZvqX3h6Q4I5Kj1amazgGp_QGVoUCgi_BL6MKFX1WPzna-FhH6UJ-9Ii0NIhMOEg6pVSPUYww8yJZQH236_WONOeEslxHM06VWlt8HnjbI65DqVVKI19UB4J1ULUKQX1jjbaF0uwL_ZtwBShb3RG05lZEFGmvElBTqKCaMNE7mwyk/w640-h472/GCLOT.png" width="640" /></a></div><br /><p><br /></p><p>紅色是以前畫過的,黃色就是這幾天看的。</p><p><br /></p><p>先説明左上角,長蛇尾巴附近包括以前畫過好幾次的 Palomar 7 (IC 1276) 的那三個好了,這三個用 3 度視野就能框在一起了:</p><p><br /></p><p>這一組位在中間的 NGC 6539 應該是最容易的,視覺亮度 +9.33,距離我們 2.54 萬光年遠,面積放在 M 字輩的球狀星團裡都算大,21.5 arcmin,算是跟 M4(26.3')、M22(24') 差不多等級:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEipXOsShfUhaZKxj-aYVGYtrhIOk9-znF8MkCU4UUb7qO8JTSHbmLtZsJ19WTJB3-xYujo6ay3aqQ6vMS1AwzwJtVYn1XfcHE7hgu9kBzjZM00UU4U-nQeQt-Q7GeFuIL-aG0X9gVBntTYWz_YpHsazb9AgkafS1YSY7R2SPvSqOQcNyJYfBmE986b8Uhs/s2013/N6539-CFF160-220X-2023.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2013" data-original-width="2013" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEipXOsShfUhaZKxj-aYVGYtrhIOk9-znF8MkCU4UUb7qO8JTSHbmLtZsJ19WTJB3-xYujo6ay3aqQ6vMS1AwzwJtVYn1XfcHE7hgu9kBzjZM00UU4U-nQeQt-Q7GeFuIL-aG0X9gVBntTYWz_YpHsazb9AgkafS1YSY7R2SPvSqOQcNyJYfBmE986b8Uhs/w400-h400/N6539-CFF160-220X-2023.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 6539 (CFF 160 f/6.5; 4.7mm Ethos for 220X)</td></tr></tbody></table><br /><p>NGC 6539 的外觀分類是很鬆散的 Class X,不過平地屋頂用 16 公分鏡也拆不出什麼星點,勉強可以看到靠核心 北北西方 有幾粒零散的星點而已,星團整體看起來的感覺就是大、質地鬆散、雲氣淡淡的模樣。</p><p><br /></p><p>NGC 6539 下面是 NGC 6517, 看起來好暗喔! 外觀分類是偏緊實的 Class IV,距離我們更遠,3.46 萬光年遠,視覺亮度 +10.23,面積大約 4.1 arcmin:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjg5DZFFyYRbRkpY6Gw1xBkUaiCe2pIpVN9VQWYGaEDnwOSecN7OvNgVWMRVsL6e0Dw-Vjf6sgfthmBhowvAT3qktnVgqK5RqnNOtUMIuLzEjgaCGXbzTOALS87wPNaJgjsKf7V19-kAhTGr1rjE04rn3LQUVmrZ50dz89md6dA_ervBGTB81zThBxIJv4/s2126/N6517-CFF160-280X-2023.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2126" data-original-width="2126" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjg5DZFFyYRbRkpY6Gw1xBkUaiCe2pIpVN9VQWYGaEDnwOSecN7OvNgVWMRVsL6e0Dw-Vjf6sgfthmBhowvAT3qktnVgqK5RqnNOtUMIuLzEjgaCGXbzTOALS87wPNaJgjsKf7V19-kAhTGr1rjE04rn3LQUVmrZ50dz89md6dA_ervBGTB81zThBxIJv4/w400-h400/N6517-CFF160-280X-2023.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 6517 (CFF 160 f/6.5; 3.7mm Ethos for 280X)</td></tr></tbody></table><br /><p>怎麼會這麼暗呢? 是我的視力衰退嗎? 看起來甚至比 IC 1276 還暗。因為實在挖不出什麼細節,頂多只能測一測大小,以這種觀察條件來說,我大概只能看到一半 -- 2 arcmin 左右的面積而已。</p><p><br /></p><p>這組最後一個就是 IC 1276,外觀分類是最鬆散的 XII,距離我們 1.76 萬光年遠,面積也不小 -- 21 arcmin,視覺亮度 +10.34:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjalBS2C-34LT9nNj7r1-CLKGP8ioCjrMpgYLNKWoaULZ1aLW1LQp4rwvVawy35HG33xrl6GTyXlnZacMu5F9NmqJ9Z6Ayh_iPF0kITBIYgsENV7OhN-iJ_x70L8FLmFZdjDQq630WDR2z1XEGG6y3I60ldXdJDdLixTzX5M1_ralRIKm0NF41FA4bajT0/s2032/IC1276(Palomar7)-CFF160-220X-2023.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2032" data-original-width="2032" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjalBS2C-34LT9nNj7r1-CLKGP8ioCjrMpgYLNKWoaULZ1aLW1LQp4rwvVawy35HG33xrl6GTyXlnZacMu5F9NmqJ9Z6Ayh_iPF0kITBIYgsENV7OhN-iJ_x70L8FLmFZdjDQq630WDR2z1XEGG6y3I60ldXdJDdLixTzX5M1_ralRIKm0NF41FA4bajT0/w400-h400/IC1276(Palomar7)-CFF160-220X-2023.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">IC 1276 (CFF 160 f/6.5; 4.7mm Ethos for 220X)</td></tr></tbody></table><p><br /></p><p>這顆的色澤跟前兩個比起來明顯帶點髒髒的黃橙色,是受前景的塵埃影響還是因為很年老? 雲氣分布不太規則,看起來也是粗糙鬆散的視感,拆得出幾顆星;星團外北側有兩顆亮星,南側有一個,星團大致就夾在它們之間。</p><p><br /></p><p>以上面那張剪下來的電子星圖來說,有三組我覺得蠻有趣可以連在一起觀賞的,一組是前面講的 NGC 6517 -- NGC 6589 -- IC 1276;另外還有: NGC 6342 -- M19 -- NGC 6356,這組有畫過同框照:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhMsj9lXLuIZMQvHAma1ovfJHqjQLxquZYuhjJijKiwZAVA-ev6iHcOb7qsPA0G-P6LoKlSrPIrlRF1tqgy1pL32Fh79cUgJ7I4GG85hl9tCYoaBM0_HHajqhqGUfWOjujcB8K0ui-QpYQcYHWNmhHm6NbrUzAmz41behqO9dTCE84QaFYLKh7VJ4bODGU/s3908/M19N6284N6293-FC100-24X-2016.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3908" data-original-width="3024" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhMsj9lXLuIZMQvHAma1ovfJHqjQLxquZYuhjJijKiwZAVA-ev6iHcOb7qsPA0G-P6LoKlSrPIrlRF1tqgy1pL32Fh79cUgJ7I4GG85hl9tCYoaBM0_HHajqhqGUfWOjujcB8K0ui-QpYQcYHWNmhHm6NbrUzAmz41behqO9dTCE84QaFYLKh7VJ4bODGU/w310-h400/M19N6284N6293-FC100-24X-2016.jpg" width="310" /></a></div><br /><p><br /></p><p>還有一組 NGC 6293 -- M9 -- NGC 6284;另外 NGC 6440 旁邊有一個行星狀星雲 NGC 6445 連在一起看也不錯:</p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh4J9evBXlqvska8G-XsvB7T_gzhV7nULZ7n_mBuLfo9FH0N0DYEfJ6imOK7J37b5Y_xv9SkgZkYugk1g7xn7w0tHHxAst3D_f8JRJ4FK_8henuqW5BcVTuRD6_Sh_nAcWhwm8svZc0DVAEo7tLxpQBtSN7PxD7Tfcn0J_WNrxSVfojM7t5AhywDhsCkHE/s1880/N6445N6440-TEC140Mewlon210-110X-2015.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1390" data-original-width="1880" height="296" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh4J9evBXlqvska8G-XsvB7T_gzhV7nULZ7n_mBuLfo9FH0N0DYEfJ6imOK7J37b5Y_xv9SkgZkYugk1g7xn7w0tHHxAst3D_f8JRJ4FK_8henuqW5BcVTuRD6_Sh_nAcWhwm8svZc0DVAEo7tLxpQBtSN7PxD7Tfcn0J_WNrxSVfojM7t5AhywDhsCkHE/w400-h296/N6445N6440-TEC140Mewlon210-110X-2015.png" width="400" /></a></div><br /><p><br /></p><p>NGC 6401 則是今年新看的:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiWhRy4WCd9vl42HOUfYgLdBdZGvk8iJCb3EKEri7MnDcT_M-KAGeO47DUegmC0bUOYYHtJYU9KY5yha03N-150cV8_RWFOcgt8feR9UqzBlfCazMH_QhJ_XwXoT_JXuyt7WvTOR-4js2oZZ9_KRum9uxJvd-ljVIvT6CCppSV4L4taAsL1t8CS4sic2AQ/s1827/N6401-CFF160-280X-2023.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1827" data-original-width="1827" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiWhRy4WCd9vl42HOUfYgLdBdZGvk8iJCb3EKEri7MnDcT_M-KAGeO47DUegmC0bUOYYHtJYU9KY5yha03N-150cV8_RWFOcgt8feR9UqzBlfCazMH_QhJ_XwXoT_JXuyt7WvTOR-4js2oZZ9_KRum9uxJvd-ljVIvT6CCppSV4L4taAsL1t8CS4sic2AQ/w400-h400/N6401-CFF160-280X-2023.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;"><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td class="tr-caption" style="text-align: center;">NGC 6401 (CFF 160 f/6.5; 3.7mm Ethos for 280X)</td></tr></tbody></table></td></tr></tbody></table><br /><p><br /></p><p>NGC 6401 的視覺亮度 +9.45,亮到用 16 公分鏡可以做到快 300X 看也沒問題;外觀分類是 Class VIII,距離我們比前面幾個都近: 8800 光年遠,大小約 12.4 arcmin。如果看天文相片會發現 北北西 與 南南東 兩邊都有暗星雲,對比起來蠻漂亮的,不過以我的觀察條件當然是看不到啦。星團本身看起來有兩層,核心部分小而亮,外圍那層的視感質地粗糙,淡淡的延伸範圍頗廣;星團東南側有幾顆大約 12.X 等亮的星點拆得出。</p><p><br /></p><p><br /></p><p>NGC 6401 往天蠍方向走先會碰到 NGC 6325:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgt7b9-DYaxi6mpr1hXV_EyxJzEp-Ljfjl4DZpUtWonPstpYYGIsAMnxUH7wJ9JxPsbrCrXXkqKpx4Qux_hyqnXw_OoDaOC7V4jIkzuu50-zg9UGZLgyUK70JuewVn26LPFmjn3VTPBDcpOBREtYGNKLnHpU29MtaLkL61WcUD0EBv_cmeEf3sLlxHjWb0/s1547/N6325-Mewlon210-240X-2023.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1547" data-original-width="1547" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgt7b9-DYaxi6mpr1hXV_EyxJzEp-Ljfjl4DZpUtWonPstpYYGIsAMnxUH7wJ9JxPsbrCrXXkqKpx4Qux_hyqnXw_OoDaOC7V4jIkzuu50-zg9UGZLgyUK70JuewVn26LPFmjn3VTPBDcpOBREtYGNKLnHpU29MtaLkL61WcUD0EBv_cmeEf3sLlxHjWb0/w400-h400/N6325-Mewlon210-240X-2023.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 6325 (Mewlon-210 f/11.5; 10mm Ethos for 240X)<br /></td></tr></tbody></table><br /><p><br /></p><p>NGC 6325 視星等亮度 +10.33,這在平地屋頂就算用 21 公分鏡也勉強勉強而已,外觀分類是 Class IV,距離我們 2.54 萬光年遠,面積大小約 4.3 arcmin;不過我實在挖不出什麼細節,看起來就只有一坨糊糊的棉花狀。</p><p><br /></p><p>繼續往天蠍方向走會碰到 NGC 6287:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEimGJxXwff0kszAcL_6w_BBm6-4JrPLKQCxMYR-8WDLXYyFWjoNTjMWSH9DR8DW2Zss1ZoYyUG0W5-jQgC2sju579IoCVmDp7yk85Ea9inEIJctWHWjxZ4TSFlhOQzDqqOmUcpyGSLoRf3t_Gt8hVAnJV6-hYUFa4PxqReXRKK2W-qAGhDN44n4a2YVaZk/s2554/N6287-CFF160-280X-2023.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2554" data-original-width="2554" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEimGJxXwff0kszAcL_6w_BBm6-4JrPLKQCxMYR-8WDLXYyFWjoNTjMWSH9DR8DW2Zss1ZoYyUG0W5-jQgC2sju579IoCVmDp7yk85Ea9inEIJctWHWjxZ4TSFlhOQzDqqOmUcpyGSLoRf3t_Gt8hVAnJV6-hYUFa4PxqReXRKK2W-qAGhDN44n4a2YVaZk/w400-h400/N6287-CFF160-280X-2023.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 6287 (CFF 160 f/6.5; 3.7mm Ethos for 280X)</td></tr></tbody></table><br /><p>NGC 6287 視星等亮度 +9.35,跟前一個 NGC 6325 只差一個星等亮度,看起來卻截然不同。外觀分類為 Class VII,距離我們 3.06 萬光年遠,大小為 5.1 arcmin; 5.1 arcmin 的感覺喔...... 以較熟悉的梅西爾目標來比擬的話也只能找到一些星系來比擬了,大概就是看 M95、M96 大小那種感覺了。因為亮度夠,倍率拉到 280X 看,核心中央似乎有條南北向的帶狀看起來比較濃。</p><p><br /></p><p>移到剪下來的電子星圖最下方還有兩個,一個是 NGC 6316:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgQ0JiPV-M1cKxkCu8wvWnz1sa1U9AT4hYhG7Fet7eH3GoxGNz77m5MQSY-xpv0H7I8Rqvt_C6CVxbHf8z38z_HypXTMYyrtORDiOW1NWWvNxrosa5Zq2HNjGxg_mA-GqrMXnfbIAX4h8F7BOnUZsRQd9aVwfbxKkUjdD8OoiSjkj0QAbVfcUFBMXXcfD8/s1838/N6316-Mewlon210-240X-2023.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1838" data-original-width="1838" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgQ0JiPV-M1cKxkCu8wvWnz1sa1U9AT4hYhG7Fet7eH3GoxGNz77m5MQSY-xpv0H7I8Rqvt_C6CVxbHf8z38z_HypXTMYyrtORDiOW1NWWvNxrosa5Zq2HNjGxg_mA-GqrMXnfbIAX4h8F7BOnUZsRQd9aVwfbxKkUjdD8OoiSjkj0QAbVfcUFBMXXcfD8/w400-h400/N6316-Mewlon210-240X-2023.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 6316 (Mewlon-210 f/11.5; 10mm Ethos for 240X)</td></tr></tbody></table><br /><p><br /></p><p>NGC 6316 算是簡單又清楚的目標,視覺亮度 +8.43,大小約 4.9 arcmin,距離我們有 3.39 萬光年遠,外觀分類是相當密集的 Class III,密集是很密集啦,可能因為夠亮,我覺得看起來細節頗多,表面上有一塊一塊較濃的特徵。</p><p><br /></p><p>最後一個是 NGC 6304:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh9lKZpeqDbfOWs0acadfCqt9k5Pftcz3V7q_lYyoO2gE-2__Y260cKTYke9SOHTqyaTaKcga4xG8TOLafMq_62e6ba1HMXNurHSI2nMsuWjX2r4zSUBRQT0G1htfAsfvU_-AKysB_ZGzYLcU4Mun7MFR5_aSbv3ZUlBRJI54SzMKEAznbqLhwe2NtJuqs/s1845/N6304-Mewlon210-240X-2023.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1845" data-original-width="1845" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh9lKZpeqDbfOWs0acadfCqt9k5Pftcz3V7q_lYyoO2gE-2__Y260cKTYke9SOHTqyaTaKcga4xG8TOLafMq_62e6ba1HMXNurHSI2nMsuWjX2r4zSUBRQT0G1htfAsfvU_-AKysB_ZGzYLcU4Mun7MFR5_aSbv3ZUlBRJI54SzMKEAznbqLhwe2NtJuqs/w400-h400/N6304-Mewlon210-240X-2023.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 6304 (Mewlon-210 f/11.5; 10mm Ethos for 240X)</td></tr></tbody></table><br /><p><br /></p><p>NGC 6304 亮度有到 +8.22,大小約 6.8 arcmin,距離我們 1.92 萬光年遠,外觀分類 Class VI,因為夠亮看起來真舒服,同樣的,我覺得中央有一條較濃亮的帶狀分布,大約是 東西向。</p><p><br /></p><p><br /></p><p>除了這區域的幾個球狀星團外,也撈了兩個在其它星座,而且以球狀星團的距離來説都算是很遠的目標,一個是武仙座的 NGC 6229:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjzOsZJ_S9uYSPEDRgYh72F0NlJr3r5mEYaDJNKSMdBS2mTtyz6mx_fXHrvOfruehjgMCEitxWUcuF8U9pVZxK1oUutohdn0ac_jhYJCZ6kjig8z76tjeS0X6xX8UhksSqGZn1QS_Tp0eQRSu6a4wMt50swk9Sp-vOI6rYUzO137mGsHHAOJZUMVtgC-SE/s1411/N6229-Mewlon210-400X-2023.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1411" data-original-width="1411" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjzOsZJ_S9uYSPEDRgYh72F0NlJr3r5mEYaDJNKSMdBS2mTtyz6mx_fXHrvOfruehjgMCEitxWUcuF8U9pVZxK1oUutohdn0ac_jhYJCZ6kjig8z76tjeS0X6xX8UhksSqGZn1QS_Tp0eQRSu6a4wMt50swk9Sp-vOI6rYUzO137mGsHHAOJZUMVtgC-SE/w400-h400/N6229-Mewlon210-400X-2023.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 6229 (Mewlon-210 f/11.5; 6mm Ethos for 400X)</td></tr></tbody></table><br /><p><br /></p><p>NGC 6229 跟鼎鼎大名的 M13、M92 在武仙座腳下圍成一個三角形,不過應該常常被大部分的人錯過了;視覺亮度 +9.39,距離我們很遠,9.71萬光年遠,比可能是從 SagDEG 抓過來的 M54 還遠,外觀分類 Class IV,大小約 4.5 arcmin;我用 400X 看起來,濃淡可以分成三層,核心部分看起來也像一條帶狀 bar,外層淡淡的延伸到很外面。</p><p><br /></p><p>另外一個 NGC 5634 位在刻板印象跟球狀星團扯不太到關係的處女座腳邊:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgF4vUm0gi0LgaSoY3moxd51AUMw-bMj4eOsy7cwGz8zIHFSUMRrhkbYG_5P3Wg4-p3RgP5wJk8WDA-_sCTVpkGo84rwxPpSVrBO-7A69W6vRr4fi9_FHNpuvlEYSzfKA7eUK73Xi9ZQTacUum4-6LObC-WW2qYatPgJjReu-xhuDPGOc2Xp7A2DGGW4TM/s1847/N5634-CFF160-280X-2023.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1847" data-original-width="1847" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgF4vUm0gi0LgaSoY3moxd51AUMw-bMj4eOsy7cwGz8zIHFSUMRrhkbYG_5P3Wg4-p3RgP5wJk8WDA-_sCTVpkGo84rwxPpSVrBO-7A69W6vRr4fi9_FHNpuvlEYSzfKA7eUK73Xi9ZQTacUum4-6LObC-WW2qYatPgJjReu-xhuDPGOc2Xp7A2DGGW4TM/w400-h400/N5634-CFF160-280X-2023.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 5634 (CFF 160 f/6.5; 3.7mm Ethos for 280X)</td></tr></tbody></table><br /><p><br /></p><p>NGC 5634 的視星等 +9.47,以這幾次看的幾個星團來説算是亮晶晶了,大小約 4.9 arcmin,外觀分類是 Class IV,距離我們也是很遠的 8.22 萬光年遠,跟 M54 (8.74 萬光年遠) 差不多;NGC 5634 推測也是從 1994 年發現證實的 SagDEG (Sagittarius Dwarf Spheroidal Galaxy) 那邊拉過來的;觀察上比較特別的是 東側 有顆橘色的亮星 HD 127119,貼在旁邊很有趣。</p><p><br /></p><p>好久沒有看這麼多球狀星團了呢!!</p>s00639http://www.blogger.com/profile/08382086616742866311noreply@blogger.com0tag:blogger.com,1999:blog-7477593545230087753.post-62194745615878459512023-06-08T10:19:00.004+08:002023-06-08T15:02:26.882+08:00兩個南天的科德韋爾目標與兩個正在中天的后髮座星系 -- NGC 5694, NGC 5128, NGC 4251, NGC 4448<p>每年北部的五月,能有個 "看得見星星" 的夜晚都算難得,所以如果有一點點機會,天況再差都要好好把握;霧霧的春季在平地用 8 吋鏡能看多深? 試試看。</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh3sgyldReu5H4mE58lyADJm722LccbEsmtsTeY3pXsRSem4BeOBqTxTXVouGGlpDQd1RmV-PGMBsRz5tUzUtSJoN69liJVpvOLV3JIz5u1Ykermv7DxH4NHu9EFpGpBYx0SgvKoKiB95K7y1e51z5G-LAzVB_xXrOTI1R-98CbSFbUImLv1P20fI7Z/s1776/2BDDDBF2-8CE7-4C79-92D0-1B0D6D78D961-11015-000006EFCC93C83D.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1184" data-original-width="1776" height="266" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh3sgyldReu5H4mE58lyADJm722LccbEsmtsTeY3pXsRSem4BeOBqTxTXVouGGlpDQd1RmV-PGMBsRz5tUzUtSJoN69liJVpvOLV3JIz5u1Ykermv7DxH4NHu9EFpGpBYx0SgvKoKiB95K7y1e51z5G-LAzVB_xXrOTI1R-98CbSFbUImLv1P20fI7Z/w400-h266/2BDDDBF2-8CE7-4C79-92D0-1B0D6D78D961-11015-000006EFCC93C83D.jpg" width="400" /></a></div><br /><p><br /></p><p>南天有開的話,這個季節幾個著名的南天目標很適合剛入夜時欣賞,首先是銀河系內已知最古老的球狀星團 NGC 5694 -- 應該有 120 億年老了,當初很可能是從麥哲倫雲被拉過來的,而現在卻正離我們銀河系遠去中;跟銀河系裏其它球狀星團比起來距離我們也很遠,11 萬 4000 光年遠左右;舉幾個例子比較好了,天蠍座的 M4 距離我們才 7200 光年遠,武仙座的 M13 距離 2 萬 5100 光年遠。</p><p><br /></p><p>找張圖顯示位置比較有感覺:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiOrVATsBhjEOB1PFXoGaUqbeSzG4gThTT3VRUOe_JaWCJfuMuHgFElZ_RalvZmVlc4KAtqyrRgh6dgsvxhT9tV3cK_G_4URxnHrxQ0pnd7xi_vHZbraRudEOnYk_kU-kj_fx7yupwY7ZyopksB_vwIk_Fnm_gniig3EYXtPDt19fNaiJbkwzaQSAqj/s1654/IMG_5455.PNG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1654" data-original-width="1179" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiOrVATsBhjEOB1PFXoGaUqbeSzG4gThTT3VRUOe_JaWCJfuMuHgFElZ_RalvZmVlc4KAtqyrRgh6dgsvxhT9tV3cK_G_4URxnHrxQ0pnd7xi_vHZbraRudEOnYk_kU-kj_fx7yupwY7ZyopksB_vwIk_Fnm_gniig3EYXtPDt19fNaiJbkwzaQSAqj/w285-h400/IMG_5455.PNG" width="285" /></a></div><br /><p><br /></p><p>差不多這樣,很偏斜吧? 實際目視大概長這樣:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiF3xNUjAPi1LpSbSY0_bsvgD9rvMdpJFFKIZrhdV-vqxcTGDC7F3cT2-Ekv57LqKxQRbA3tnPfbgTFFoWS_uyiF0Ah5knA5k5A8DsVPKZPg1mLFEO-kVRmwWc6l5nrOHEK5_dshsjRooyld4hzgGgrLqM0wLPWugovXXw5bYCIYAKPAJNev8PulIaX/s2589/IMG_5451.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2589" data-original-width="2589" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiF3xNUjAPi1LpSbSY0_bsvgD9rvMdpJFFKIZrhdV-vqxcTGDC7F3cT2-Ekv57LqKxQRbA3tnPfbgTFFoWS_uyiF0Ah5knA5k5A8DsVPKZPg1mLFEO-kVRmwWc6l5nrOHEK5_dshsjRooyld4hzgGgrLqM0wLPWugovXXw5bYCIYAKPAJNev8PulIaX/w400-h400/IMG_5451.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 5694 (Mewlon-210 f/11.5; 6mm Ethos for 403X)</td></tr></tbody></table><p><br /></p><p>當時目標仰角 36 度,我是覺得這個角度還好啦,可以接受,不算太低,60X (40mm XW) 尋星時就看到了。NGC 5694 的柯德韋爾編號是 C66,南邊有兩顆 10.X 等的亮星當參考座標,它自己本身的視覺亮度也有 +10.17,不但好認也可以失焦那兩顆亮星來跟本尊比亮度做確認。NGC 5694 的外觀分類是 Class VII (Shapley-Sawyer 分類),跟大家比較熟的梅西爾目標相比的話,程度大概是 M10 及 M22,8 吋鏡拆不清楚什麼星點,看起來頂多就是 "粗糙表面" 的那種感覺,把倍率拉到 400X (6mm Ethos) 看,有兩個層次的樣子,整體顏色偏黃。1784 年 5/22 威廉赫歇爾發現 NGC 5694,我是 5/21 第一次看到,覺得有點巧呢!</p><p><br /></p><p><br /></p><p>再往下,看起來希望不大... 不過夢幻的南天星系 NGC 5128 這次竟然一眼認出! 當時目視仰角只有 22 度,應該是那天可以目視到東西的仰角臨界線,再往下 4 度的 Omega 球狀星團就被霧霾遮住看不見了。</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgESh5YFEjOXlDhkQpa6DMZyreKJmaOTpDEXSs1tWj-kIjckdLU74oLFgjGxZ-Q0Zzey9rtgqaoMAkddv9txZ1z7EA7N_WQX7RgJr2SaRKc6UYd0Itnmv0sOg4X3a1oeBQ2JKo7puIJXbNLBYC_cFK1D5fAoGRXVyCW7RABetyj9wxyGCHPpHZcL72M/s2135/IMG_5452.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2135" data-original-width="2135" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgESh5YFEjOXlDhkQpa6DMZyreKJmaOTpDEXSs1tWj-kIjckdLU74oLFgjGxZ-Q0Zzey9rtgqaoMAkddv9txZ1z7EA7N_WQX7RgJr2SaRKc6UYd0Itnmv0sOg4X3a1oeBQ2JKo7puIJXbNLBYC_cFK1D5fAoGRXVyCW7RABetyj9wxyGCHPpHZcL72M/w400-h400/IMG_5452.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 5128 (Mewlon-210 f/11.5; 12.5mm for 193X)</td></tr></tbody></table><br /><p><br /></p><p>NGC 5128 被叫作 半人馬座 A (Centaurus A),能被叫 "某某 A" 的都不簡單,像是 Virgo A 的 M87。也有人叫它漢堡星系,不過中間有黑帶的星系很容易被叫漢堡星系就是了。</p><p><br /></p><p>關於它自己本身,查資料會找到不同說法,有的説 NGC 5128 是橢圓星系前面有條暗帶,也有説是透鏡星系前面有暗帶,還有説是一個大透鏡星系跟一個小螺旋星系碰撞後變成的特殊星系... 因為很明顯,所以倍率慢慢拉高,一路從 40mm(60X) --> 17mm(140X) --> 12.5mm (193X),才開始畫圖。那條招牌的大黑帶看得見唷,看得出黑帶從東側切入,最明顯的部分在中央附近...... 這也很正常,看暗帶就是這樣,背景越亮對比當然就越好。隨著眼睛適黑狀況到最佳,整個星系範圍看起來就越來越大,有機會到南半球看一定很壯觀。</p><p>貼一張經典的天文相片:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgcdW21IdWvSAM7R1X1_VGUn6aSl_SBSukJimOTuyCb36b8LGKN6LkjygnuucvBOkbGvoKX2FW7MSckKsGCFh0AW-2dUYVdruUJcrhCylZHkKgjSl3oM4SDTJ4PrvXGAx5cmYx5HWMn3gnX1a6fUDF0f_l5rgUDB7VcPwxmbb-RBcXP37ZnttCm-4Gr/s1280/eso0315a.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1251" data-original-width="1280" height="391" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgcdW21IdWvSAM7R1X1_VGUn6aSl_SBSukJimOTuyCb36b8LGKN6LkjygnuucvBOkbGvoKX2FW7MSckKsGCFh0AW-2dUYVdruUJcrhCylZHkKgjSl3oM4SDTJ4PrvXGAx5cmYx5HWMn3gnX1a6fUDF0f_l5rgUDB7VcPwxmbb-RBcXP37ZnttCm-4Gr/w400-h391/eso0315a.jpg" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;"><strong style="background-color: white; box-sizing: border-box; color: #333333; font-family: "Helvetica Neue LT ESO", "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 13px; text-align: start;">Credit:</strong><div class="credit" style="background-color: white; box-sizing: border-box; color: #333333; display: inline-block; font-family: "Helvetica Neue LT ESO", "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 13px; margin-left: 4px; text-align: start; vertical-align: top;"><p style="box-sizing: border-box; margin: 0px 0px 9px;">ESO</p></div></td></tr></tbody></table><br /><p><br /></p><p>前面這兩個目標都有科德韋爾編號,NGC 5694 是 C66,NGC 5128 是 C77,都很壯觀,所以目視難度不高;如果要找其它深空天體就要看天頂附近有沒有機會了。找找看后髮座裏有沒有不曾看過但亮度還可以挑戰的? 首先是 NGC 4251,電子星圖 Skysafari 上説視覺亮度有 +10.8 呢:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEinPxfAKh6bU08OlFQbHZlBpjm5tQUi9YkYIEUWhL0Mhedi1TMpHx4LuW4baOtXeV_JHT3raQ3R37OFYlF0ZSaHm7QWF3U3FYlmOztLBqY5_NdQI0vpHCxpo64QBJUOk0CcsVyl7O48JGiTJAPwQVYY2RaX2uuhUuUWekoLNtl9tIc4ojVezhJqHmVw/s2189/IMG_5453.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2189" data-original-width="2189" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEinPxfAKh6bU08OlFQbHZlBpjm5tQUi9YkYIEUWhL0Mhedi1TMpHx4LuW4baOtXeV_JHT3raQ3R37OFYlF0ZSaHm7QWF3U3FYlmOztLBqY5_NdQI0vpHCxpo64QBJUOk0CcsVyl7O48JGiTJAPwQVYY2RaX2uuhUuUWekoLNtl9tIc4ojVezhJqHmVw/w400-h400/IMG_5453.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 4251 (Mewlon-210 f/11.5; 10mm Ethos for 242X)<br /></td></tr></tbody></table><br /><p>對,就只這樣小小暗暗的;目鏡換到 140X (17mm Ethos) 時認到,用 240X (10mm Ethos) 畫圖,400X (6mm Ethos) 時又看不到了。NGC 4251 東--西 向拉長的外觀不難認出,分類是透鏡星系,距離我們大約 6300 萬光年遠,看不出核心部位,亮度就整個云云的那種樣子。</p><p><br /></p><p>另外一個 NGC 4448 更暗,+11.15 等,距離我們 7800 萬光年遠,對它有興趣純粹是因為編號 -- 記得我第一份工作的工號就是 4448.... 嗯,的確是一樣黯淡呀。^^" </p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjTQp3_Hpe-27Nq4nvc_hAvqxJJ7RZ8BTlE083F7Zi_SWMatD1eNdIL_Spd8BVJZ49t3FG4DxEbQtukA338NDCyKbjseYBCGI5mw0QKEViNKo_dv9yXtzfl4ZJNYRHo6j0bRIHqFvIGh9imlB7jqhVfFT-WGDFNJ84so63Pjibt04HBTDsQgzGKKFan/s2080/IMG_5454.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2080" data-original-width="2080" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjTQp3_Hpe-27Nq4nvc_hAvqxJJ7RZ8BTlE083F7Zi_SWMatD1eNdIL_Spd8BVJZ49t3FG4DxEbQtukA338NDCyKbjseYBCGI5mw0QKEViNKo_dv9yXtzfl4ZJNYRHo6j0bRIHqFvIGh9imlB7jqhVfFT-WGDFNJ84so63Pjibt04HBTDsQgzGKKFan/w400-h400/IMG_5454.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 4448 (Mewlon-210 f/11.5; 10mm Ethos for 242X)<br /></td></tr></tbody></table><br /><p><br /></p><p>同樣用 140X (17mm Ethos) 找到,用不同倍率觀察比較了半天,240X 有比 190X 清楚,所以最後就是用 10mm Ethos 畫圖。看得蠻辛苦的,整體外型略扁又不是太扁,長軸在 南--北 向;NGC 4448 分類是棒旋星系,我看天文相片覺得有點像縮小版的 M31,這麼小.... 有機會應該弄個 600X 來看看到底像不像。</p>s00639http://www.blogger.com/profile/08382086616742866311noreply@blogger.com2tag:blogger.com,1999:blog-7477593545230087753.post-12932643627784880112023-06-02T17:04:00.007+08:002023-07-21T17:58:43.197+08:00M101 超新星及其附近幾個星系的觀察紀錄 -- SN 2023ixf, NGC 5474, NGC 5485, NGC 5473, dragon triplet (NGC 5985, NGC 5982, NGC 5981)<p>平平常常日子裏,最近有個小特殊星象 -- 位在大熊尾巴的 M 101 出現一顆逐漸變亮的超新星;雖然 "看" 起來不過是顆再平凡不過的 11、12 等亮 "星星" 而已,不過如果新朋友出現在還算熟悉的目標範圍內時,總會有興趣找找看。</p><p><br /></p><p>不管如何,先要找到 M101。平地看 M101 的確頗挑戰,至少比大熊尾巴分隔線對面的 M51 難上許多;但一個高挑戰性目標努力找過很多次的話,腦海裡會建立一個粗略的星圖,包括附近比較亮的星點、分佈位置都會印在腦海,因此不速之客出現在此一定會發現。</p><p><br /></p><p>幾年前曾在山上借永融兄的 AG 12 仔細畫過 M101 細節:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEglni6S4GdSOnQcsaGG9ib6O_0qgITr1wgArk3WSyu04cqEba8m_QEoCnqWEkfEYcoEX9D1tBYbOu-O3e-TZvaAHGVSvksBnxLGp4IZYwgwJ39h6LtSDOF_aVP7Gy-Lgb8TXILKSRAdT_E_mh2rTR4JC2PReWT0m2eBAWEOnqr_HZAKpuKJabGygrau/s992/IMG_5468.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="843" data-original-width="992" height="340" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEglni6S4GdSOnQcsaGG9ib6O_0qgITr1wgArk3WSyu04cqEba8m_QEoCnqWEkfEYcoEX9D1tBYbOu-O3e-TZvaAHGVSvksBnxLGp4IZYwgwJ39h6LtSDOF_aVP7Gy-Lgb8TXILKSRAdT_E_mh2rTR4JC2PReWT0m2eBAWEOnqr_HZAKpuKJabGygrau/w400-h340/IMG_5468.JPG" width="400" /></a></div><div><br /></div><div><br /></div><div>這顆編號 SN 2023ixf 的超新星在哪裡呢?</div><div><br /></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhJKEcXUIoLJ7xHxa3BpGJ099xcInZQamf6_j_X34P1bkGJF0q6h_u3ZQ0DOkH6t_9Bb1IWkgZOhBfu5ZtOLRUfSIMAAiz1vhbFJelkROcwCFmsu7RX74GrwcV1NKoH9BGCSMt4WqVaCkxMs-xhioqv7MyxgwStllbIoYuHhVMyKn_ALUgHvBF5NRJ6/s1600/IMG_5488.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1360" data-original-width="1600" height="340" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhJKEcXUIoLJ7xHxa3BpGJ099xcInZQamf6_j_X34P1bkGJF0q6h_u3ZQ0DOkH6t_9Bb1IWkgZOhBfu5ZtOLRUfSIMAAiz1vhbFJelkROcwCFmsu7RX74GrwcV1NKoH9BGCSMt4WqVaCkxMs-xhioqv7MyxgwStllbIoYuHhVMyKn_ALUgHvBF5NRJ6/w400-h340/IMG_5488.JPG" width="400" /></a></div><br /><p>NGC 5461 旁邊一點點。NGC 5461 的目視亮度只有 14 等,平地當然是不可能拿它來當路標,不過這顆超新星位在此處算是很亮了,就算沒什麼路標,目鏡移到附近第一眼就被它吸引。我也畫了一下:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhmLofarvMjeHOll2-2ZtzB6IAwoUQaEMxTrPhD8Waw2jSRybac47QUSgSt6B9Wsqq8XKaRn77PS9FLtvbjyopDKUr0lVqDHfg2Kp6oiwIvfiF6Xpnl_L6B7IVLwJtryE2lDmegVhoDJ1XyvQyGP5mO6AyFpNso5reRTvMJoLIVMpoQ7Sb8WdimU7BM/s1818/IMG_5491.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1818" data-original-width="1818" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhmLofarvMjeHOll2-2ZtzB6IAwoUQaEMxTrPhD8Waw2jSRybac47QUSgSt6B9Wsqq8XKaRn77PS9FLtvbjyopDKUr0lVqDHfg2Kp6oiwIvfiF6Xpnl_L6B7IVLwJtryE2lDmegVhoDJ1XyvQyGP5mO6AyFpNso5reRTvMJoLIVMpoQ7Sb8WdimU7BM/w400-h400/IMG_5491.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">SN 2023ixf (Mewlon-210; 10mm Ethos for 240X)</td></tr></tbody></table><br /><p><br /></p><p>M101 本尊只能看到核心一小部分,每次拿來當定位星,位在核心北側一點點的 12.9 等星還差點看不到。認出超新星並沒什麼太有趣之處,至少要來識別一下亮度吧! 所以把週遭星點都拿來比看看,最好能找到亮度差不多的,不然也要找到比它亮一點點跟暗一點點的來算亮度範圍.... 比了半天,我覺得大概 +11.0 左右,如果電子星圖 Skysafari 準的話,當時它一定比 +11.2 亮,也一定比 +10.9 暗。用相機記錄一下,真的只有一下 -- 單張 30 秒:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiu-RBEU4tyg79-JZMVWLXZYRStAfChwfWyzmv0XLcCw69MfMjnzE5ULa8R5M1PvKo3CVeUos5DzBJGpN5_W9fovDvj032k_nBXK1jWheqLJ4DAjTCSAdBSCO-3HXOXIVHK4mMXol5DACeKuIN46QNV2C20B6nVYDPy4Pix8GgdxZ2UHXIHMmRWhtcX/s1182/CCB631B9-C599-4148-A6C5-68C5E2C0B60F-34657-0000173F6CDEFE93.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1182" data-original-width="1182" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiu-RBEU4tyg79-JZMVWLXZYRStAfChwfWyzmv0XLcCw69MfMjnzE5ULa8R5M1PvKo3CVeUos5DzBJGpN5_W9fovDvj032k_nBXK1jWheqLJ4DAjTCSAdBSCO-3HXOXIVHK4mMXol5DACeKuIN46QNV2C20B6nVYDPy4Pix8GgdxZ2UHXIHMmRWhtcX/w400-h400/CCB631B9-C599-4148-A6C5-68C5E2C0B60F-34657-0000173F6CDEFE93.jpg" width="400" /></a></div><br /><p>相片裡超新星下方 7 點鐘方向的一小點糊糊的就是 NGC 5461,中央比較大點糊糊的當然就是 M101 核心,不過從相片發現核心西側 11 點鐘方向有個糊糊的東西,可能是 NGC 5451,好像夠亮可以挑戰看看喔。</p><p><br /></p><p><br /></p><p>M101 附近其實還有很多星系可以找看看,記得以前曾經看過雜誌有一篇很有趣的文章介紹 M101 附近的星系。既然平地屋頂 M101 沒什麼看頭,倒是可以找找這附近比較明顯的幾個目標</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjI_oZyu05DgScFA8zguLcFI2B6r2KtNra_ul49Rzj516ufwE9OFxhJRhU2x2S_k4ZI0FzNiP_LEaC6QynIUMUaOzUS2Qe8dnzbwejwApNTdXtDlWXZ-npTfY4znuOPMm-SFm4RiW6AClaNs6DtqTHLsWoAbP792J5EjuRbxik2BZ-l2ihMWDFf0c2Y/s1552/IMG_5515.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1552" data-original-width="1179" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjI_oZyu05DgScFA8zguLcFI2B6r2KtNra_ul49Rzj516ufwE9OFxhJRhU2x2S_k4ZI0FzNiP_LEaC6QynIUMUaOzUS2Qe8dnzbwejwApNTdXtDlWXZ-npTfY4znuOPMm-SFm4RiW6AClaNs6DtqTHLsWoAbP792J5EjuRbxik2BZ-l2ihMWDFf0c2Y/w304-h400/IMG_5515.jpg" width="304" /></a></div><br /><p><br /></p><p>黃色字是有找到的,紅色是沒找到的;雖然月光頗亮,但可能因為颱風逼近,透明度很好,所以用 16 公分折射鏡挑戰 11.X 等的星系。首先是屬於 M101 矮星系裏最亮的一個, NGC 5474:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjY90nUSItd6GMqMUDsn3UhzysmEXV_8l13u7Zvx_9JUftfekBx4su6VunskaA-q4CXwueudBLcBvGkFuOun9g4S-DQJpnd7B0INbtkx5HYmotU_CNSX8fRHRdfCA6NA1F9EA0fRAO3iAqBD8W2Odi3tXpYpwqIZlqioJ_Ex2bAQig8x_ZncndIcEN8/s2835/IMG_5499.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2835" data-original-width="2835" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjY90nUSItd6GMqMUDsn3UhzysmEXV_8l13u7Zvx_9JUftfekBx4su6VunskaA-q4CXwueudBLcBvGkFuOun9g4S-DQJpnd7B0INbtkx5HYmotU_CNSX8fRHRdfCA6NA1F9EA0fRAO3iAqBD8W2Odi3tXpYpwqIZlqioJ_Ex2bAQig8x_ZncndIcEN8/w400-h400/IMG_5499.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 5474 (CFF 160 f/6.5; 3.7mm Ethos for 280X)</td></tr></tbody></table><br /><p>M101 的 NGC 編號是: NGC 5457,距離我們大約 2300 萬光年遠,而這個伴星系 NGC 5474 大約 2200 萬光年遠。仔細看會發現一個蠻有趣的現象: 星系的核心偏一邊,靠北側,據說是受到 M101 引力的影響,剪貼一下 DSS 的相片,同時有 M101 與 NGC 5474 的:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi6WG99-xiNDhbTsgRQQnx3_K3kAMgUsSK-GyuCA_r3PIvqHo9KPPoV2t9b0g1MxzTkKGhAeeLboUS1n7NmtzmgZJc22IifuOOm0Mx2qJULeTL8w3l0SDmiVGH8jiifKwsGnbh5uHZegFsSxXBM4A6tL9szw2RGtUx9v_mCZ1SGVqZ6poULPl_SYCjW/s1647/5474.png" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1393" data-original-width="1647" height="339" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi6WG99-xiNDhbTsgRQQnx3_K3kAMgUsSK-GyuCA_r3PIvqHo9KPPoV2t9b0g1MxzTkKGhAeeLboUS1n7NmtzmgZJc22IifuOOm0Mx2qJULeTL8w3l0SDmiVGH8jiifKwsGnbh5uHZegFsSxXBM4A6tL9szw2RGtUx9v_mCZ1SGVqZ6poULPl_SYCjW/w400-h339/5474.png" width="400" /></a></div><br /><p>核心被那個十字符號遮住了。當時在找時並沒有這麼容易認出,先是勉勉強強用 100X 左右 (10mm Ethos) 看見核心,看一段時間後眼睛充分適黑,倍率上到 220X (4.7mm Ethos) 才發現核心南側有點雲氣蔓延過去,雖然最後用 280X (3.7mm Ethos) 畫圖,不過我覺得 220X 比較清楚,目標長得還不小呢! 而且看資料才知道它是螺旋星系,本來還以為矮星系都是橢圓或不規則星系説。</p><p><br /></p><p>後補一個 7 月時畫的 NGC 5474:</p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjD9lt8_xI3JbQObUh9Hur7fX9SntGGzje9mgCs6u7tU8BVmalNBfefe52scYZcEfD4wnPqtcP1JySYtisf10gDMcKh3P30mt4ufntpHu0lk4zUSsS3o2qzcqo1jIEjNUu7dSYH1O8pWZUP1rkFA6roTMCGIxAwrZaXw3iimUW0c6UcHENYFQSeyeDU1BI/s1812/N5474-Mewlon210-240X-2023.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1812" data-original-width="1812" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjD9lt8_xI3JbQObUh9Hur7fX9SntGGzje9mgCs6u7tU8BVmalNBfefe52scYZcEfD4wnPqtcP1JySYtisf10gDMcKh3P30mt4ufntpHu0lk4zUSsS3o2qzcqo1jIEjNUu7dSYH1O8pWZUP1rkFA6roTMCGIxAwrZaXw3iimUW0c6UcHENYFQSeyeDU1BI/w400-h400/N5474-Mewlon210-240X-2023.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 5474 (Mewlon-210 f/11.5; 10mm Ethos for 240X)</td></tr></tbody></table><br /><p><br /></p><p><br /></p><p>NGC 5474 畫好後,轉到 M101 的北側另有三顆可能有機會看到的目標,其實只有視覺亮度都是 + 11.4 的 NGC 5485 跟 NGC 5473 啦;+11.8 的 NGC 5422 最後果然怎麼試都沒機會。雖說資料上視覺亮度一樣,但是實際去找後發現 NGC 5485 超難,NGC 5473 卻很簡單:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEghbwAvyTCgTqHw_-qagWt1_ySpCy3sXTZZt_dZVXx1s8w8gmorZb3mxh3gZm_1Acp9U1PCp-F2EfVJp4TbHKl-PFFEebf4TUuYn-8aV5Io9Iv29jFYaMQozOyYw6YLYtkd5enaXhbBBFkKn-cpQuwvpSu9itFD5tLvwNDMidQE3_OhGfyLv1DEDo4j/s2705/IMG_5500.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2705" data-original-width="2705" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEghbwAvyTCgTqHw_-qagWt1_ySpCy3sXTZZt_dZVXx1s8w8gmorZb3mxh3gZm_1Acp9U1PCp-F2EfVJp4TbHKl-PFFEebf4TUuYn-8aV5Io9Iv29jFYaMQozOyYw6YLYtkd5enaXhbBBFkKn-cpQuwvpSu9itFD5tLvwNDMidQE3_OhGfyLv1DEDo4j/w400-h400/IMG_5500.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 5485 (CFF 160 f/6.5; 3.7mm Ethos for 280X)</td></tr></tbody></table><br /><p>NGC 5485 距離我們大約 8400 萬光年遠,我用 280X (3.7mm Ethos) 看好久才確認,實在很暗,如果專注力不足,一失神就消失,又要專心好久目鏡微微移來移去才再找到;看起來就是很均勻、圓圓的外貌,也有點面積... 就是那種不像星點、比星點大很多很多的感覺啦。</p><p><br /></p><p>專業的天文相片長這樣,很精彩:</p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjquajJJMja3oZyc5k-UaUN3stLKJrXtHl0MIPOFFfvsRQPMQCOiSMH1233j8naqKYA2M9oHO4zeLImb8OW7RmRG_hUaJRfRAk8HXMKrRoj_3FxPHcj22eZByzsm4F6CgawJmHad-_1vCior4TS5m5-AroAg-Jrz4_HXptIlR29h6EQYZQydqMqXLMn/s800/NGC5485_-_SDSS_DR14.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="800" data-original-width="800" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjquajJJMja3oZyc5k-UaUN3stLKJrXtHl0MIPOFFfvsRQPMQCOiSMH1233j8naqKYA2M9oHO4zeLImb8OW7RmRG_hUaJRfRAk8HXMKrRoj_3FxPHcj22eZByzsm4F6CgawJmHad-_1vCior4TS5m5-AroAg-Jrz4_HXptIlR29h6EQYZQydqMqXLMn/w400-h400/NGC5485_-_SDSS_DR14.jpg" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Von Sloan Digital Sky Survey</td></tr></tbody></table><p><br /></p><p>對,就是中央橫過去那條塵埃帶,這個不知道用業餘的鏡子看得到嗎?</p><p><br /></p><p><br /></p><p>下一個 NGC 5473 卻意外的容易看到:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh80oOMv3NVRKGLm7kToU0plWNcWGDq377sAf0EsON54chtd4U4wFoKv7BsKmJb7QOvgqu7WS-vlP2VSd8VL_51wHD_npZBLU4t2SBcIm4AvVIjPmBRQA3WkXgzsVeFChivZlUs-_P-ubniHRqw-kf1FtI2fVwphmfKV3soJYibh4XkWfXUB-z_bBbi/s2941/IMG_5501.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2941" data-original-width="2941" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh80oOMv3NVRKGLm7kToU0plWNcWGDq377sAf0EsON54chtd4U4wFoKv7BsKmJb7QOvgqu7WS-vlP2VSd8VL_51wHD_npZBLU4t2SBcIm4AvVIjPmBRQA3WkXgzsVeFChivZlUs-_P-ubniHRqw-kf1FtI2fVwphmfKV3soJYibh4XkWfXUB-z_bBbi/w400-h400/IMG_5501.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 573 (CFF 160 f/6.5; 3.7mm Ethos for 280X)</td></tr></tbody></table><br /><p>Wikipedia 上說距離我們 8500 萬光年遠,跟前面那個 NGC 5485,還有前面剪貼電子星圖左下角的 NGC 5475 屬相同一個小型的星系群。280X 看還能看出其稍微拉長的外型,長軸在 西北--東南 向,另外就是核心夠亮,也看得出外圍的雲氣... 不過當然是因為有看到外圍的雲氣才知道是橢圓形啦。DSS2 的天文相片長這樣:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhndS3llK23tq73DfXfIyf23GyLp6GghuLfmoIB5VMygzd6MWfXEUHaQaHj-YQgkwzb20e7g0dZ3S99YNjX3xjBN4uw-FdTRY8PV95QXs069uLcBFul2TWipraCnU7T6R435ed9-ycLIpSPJmGtJvHEeqiBTPgcvxCPHiSuc0JZDAUx_09B9s3OoUVR/s800/ngc5473-dss2r-800.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="800" data-original-width="800" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhndS3llK23tq73DfXfIyf23GyLp6GghuLfmoIB5VMygzd6MWfXEUHaQaHj-YQgkwzb20e7g0dZ3S99YNjX3xjBN4uw-FdTRY8PV95QXs069uLcBFul2TWipraCnU7T6R435ed9-ycLIpSPJmGtJvHEeqiBTPgcvxCPHiSuc0JZDAUx_09B9s3OoUVR/w400-h400/ngc5473-dss2r-800.jpg" width="400" /></a></div><br /><p><br /></p><p><br /></p><p>最後一組目標位在天龍座,NGC 5985, NGC 5982, NGC 5981,這三個應該在 0.25 度視野內就能裝一起的組合有人叫它: Dragon Triplet:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjK1qgM22PSUcd1rphJVnzGXwrtqWBzVxMySfm2lhO_QkJr3DO00tcnAqZiyCuD__VxWqSkGk7SFCyXWtINKYjuTLYY5LXpiMAwyoncD0IbnZBWCgiiVwkR8fuglihX_LLrOFNeAzz-A3AuR0GGE8VUw6K2PfddT58wQUiXHRiXd2_oHsU3sWZcdnIr/s1845/IMG_5502.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1791" data-original-width="1845" height="622" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjK1qgM22PSUcd1rphJVnzGXwrtqWBzVxMySfm2lhO_QkJr3DO00tcnAqZiyCuD__VxWqSkGk7SFCyXWtINKYjuTLYY5LXpiMAwyoncD0IbnZBWCgiiVwkR8fuglihX_LLrOFNeAzz-A3AuR0GGE8VUw6K2PfddT58wQUiXHRiXd2_oHsU3sWZcdnIr/w640-h622/IMG_5502.JPG" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 5985, NGC 5982, NGC 5981 (CFF 160 f/6.5; 3.7mm Ethos for 280X)</td></tr></tbody></table><br /><p><br /></p><p>畫面中央那個 NGC 5982 最容易,也能識別出核心;右邊那個 NGC 5985 也 OK,整體看起來面積比較大,雲氣分佈也比較均勻;左邊那個 NGC 5981 應該算失敗啦...... 雖然當時覺得有看到、也畫下來了,但後來跟天文相片相比後,我覺得畫的面積大太多,通常這樣就是錯覺了。天文相片長這樣:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiiOkbI4uCbwgPpmz28XgmxGmtMmZxMtGDGBPiq9p-pK_r_YEhWwImAaiKTKn4To7BaOfqHthtqnluj0bPwbGYXlqDUPGZ6-Clnwt-nzKZLF2g8wJycHmeE6jvFd739kV5bWauiCjWl8EqnPOtsEK5naG3jdJVPSNd-sGeFB69qRCFpR7d-yBhlmckB/s1000/2016-07-07_577ec96e64db2_NGC5981-2-5RGBcPS_1000.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="643" data-original-width="1000" height="258" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiiOkbI4uCbwgPpmz28XgmxGmtMmZxMtGDGBPiq9p-pK_r_YEhWwImAaiKTKn4To7BaOfqHthtqnluj0bPwbGYXlqDUPGZ6-Clnwt-nzKZLF2g8wJycHmeE6jvFd739kV5bWauiCjWl8EqnPOtsEK5naG3jdJVPSNd-sGeFB69qRCFpR7d-yBhlmckB/w400-h258/2016-07-07_577ec96e64db2_NGC5981-2-5RGBcPS_1000.jpg" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">https://skyandtelescope.org/online-gallery/ngc-5981-5982-5985/</td></tr></tbody></table><br /><p><br /></p><p>相片絕對跟目視的結果不同,相片的 NGC 5981 跟另兩個比起來超亮,實際上絕非如此。其實我這次的素描有畫 NGC 5985 跟 5981,調了很久才把對比弄到跟那天目視的情況很接近,真的很接近。 ^^"</p><p><br /></p><p><br /></p>s00639http://www.blogger.com/profile/08382086616742866311noreply@blogger.com0tag:blogger.com,1999:blog-7477593545230087753.post-25367013414299673282023-05-20T14:48:00.001+08:002023-05-20T14:48:24.422+08:00換了一輪又回到 Mewlon-210<p>搬進大光害的市區住之後,觀星機會大減;畢竟還要早起上班賺錢,沒辦法再像以前住鄉下時這麼方便控制時間。不過,想看星星的人不管住哪裡都會想看,就算有各種不方便也要想辦法克服。就這樣也嘗試了 3 年,從用原器材開車到附近河堤,到屈就小陽台;120mm 折射 (完全與小陽台不合)、90mm 折射、76mm 折射、180mm DK、18X 70mm 雙筒、100mm 折射... 目前心得是這樣: 目標以行星、月面最適合,雙星 (多星或其他特別的星星) 次之,行星狀星雲與疏散星團很勉強 (因為沒多少細節,純粹只是看到就好),其他就沒了;所以依目標類型選器材的話當然最棒的是 Mewlon-180C,折返式設計又特別適合縱深很短的小陽台。<br /></p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh463sdyZVC8MIXsNzz6U8Zg3S4wq2NJMDEBkuubs_Y-1fBRE6VSw0cTujJUqtCAzUUc_6yFfZrQuDgyiHvGWYKruS_zQ-aFMxt7GeZnscpzjIx3_sGWssq39yF0lWbe91FU9jGR4l0uJm3aWIf0rhFmcUdkcC27zWRzBcP7TnKWPihCbhXXfB4gDsn/s4032/IMG_1238.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3024" data-original-width="4032" height="300" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh463sdyZVC8MIXsNzz6U8Zg3S4wq2NJMDEBkuubs_Y-1fBRE6VSw0cTujJUqtCAzUUc_6yFfZrQuDgyiHvGWYKruS_zQ-aFMxt7GeZnscpzjIx3_sGWssq39yF0lWbe91FU9jGR4l0uJm3aWIf0rhFmcUdkcC27zWRzBcP7TnKWPihCbhXXfB4gDsn/w400-h300/IMG_1238.HEIC" width="400" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh4qeFNf7e_B97t2M2mcpAlFzhqxuV-59XuGXrdmJMrt-MzqO1V7fkmS02MeaLEQuMCx2RqJMen9qYZ1qivRvsz98l0WdcCB6AfXmtUyjm_1oBYGlVQ0m28KS2e_jCRwMe4cnCaJiAKcyj0Coow7pXEEHS6eM5rZ_1sO-CqdpQYjwAjNFtd3YFZU0zt/s3024/IMG_1218.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3024" data-original-width="3024" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh4qeFNf7e_B97t2M2mcpAlFzhqxuV-59XuGXrdmJMrt-MzqO1V7fkmS02MeaLEQuMCx2RqJMen9qYZ1qivRvsz98l0WdcCB6AfXmtUyjm_1oBYGlVQ0m28KS2e_jCRwMe4cnCaJiAKcyj0Coow7pXEEHS6eM5rZ_1sO-CqdpQYjwAjNFtd3YFZU0zt/w400-h400/IMG_1218.HEIC" width="400" /></a></div><br /><p><br /></p><p>Mewlon-180 很好,如果是 Mewlon-210 不就更好? 對,我一直都是這麼想的。不過這兩年來日本高橋什麼東西都逐漸停產,原來還有賣的鏡子交期也變遙遙無期,上面這隻 180C 也是廠長幫忙從二手市場找來的。 210 呢? 還好有位超級日本通的同好割愛:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjVjYRFgL5j_yth-WqNRil4Ra7Y7AhdnN2dP1ImtU9BO_acfCG1WZExWDuYwNzYBvIHN2t-zGTLHzbfegbUwL1NzGcEX8u6ce1pc9FQYK8T9b2sksWw2xb-dr1ujSpj65mrHUpS6OXTMGSkD9UwpkRiKAKlP_KEQoKPw8t4zJeiZ6NGXTuzkfI2z4v7/s1182/4130B92B-A68C-4FC5-90FE-1FAB3A4F7ABA-12280-00000775ED520858.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1182" data-original-width="1182" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjVjYRFgL5j_yth-WqNRil4Ra7Y7AhdnN2dP1ImtU9BO_acfCG1WZExWDuYwNzYBvIHN2t-zGTLHzbfegbUwL1NzGcEX8u6ce1pc9FQYK8T9b2sksWw2xb-dr1ujSpj65mrHUpS6OXTMGSkD9UwpkRiKAKlP_KEQoKPw8t4zJeiZ6NGXTuzkfI2z4v7/w400-h400/4130B92B-A68C-4FC5-90FE-1FAB3A4F7ABA-12280-00000775ED520858.jpg" width="400" /></a></div><br /><p><br /></p><p>Mewlon-210 曾陪我好長一段追星星的日子,過了這麼多年重新抓著 Mewlon 的招牌 -- 兼把手使用的尋星鏡 -- 時覺得再熟悉不過了。10 吋、12 吋... 更大的主鏡,價錢等級太高難相比,因此考慮其他鏡種理所當然;但很多同好要我推薦 8 吋鏡的話我都會推 Mewlon-210,並不是因為 "高橋" 的緣故,而是從光學品質、易用性、維護保養、光軸調整... 方方面面平衡的結果,一直都認為首選就是它啦。</p><p><br /></p><p>之前用 Mewlon-210 這麼多年居然從來不曾調過光軸,當然也不曾拆過主鏡,現在沒什麼不敢了,先清理一下主鏡,晚上再來對星點調光軸:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEihjmV-ra1tURZrp-C-Fr3PSpw9mGA1WC6DBIuLeL56MYd4ZKwu0o4MErglC6eoWkzdgAJRt06XUmX3O5o6xGLRvXVQ8X2Q4kTdsGYOpfmwXfKgT5XU94qbbuuVE95Rk8SRqKEGrJ_DwXTjzj8QzEJTPC-qV6SZ251NtW5VR6_gsBAAIZkrGby51uco/s4032/IMG_5368.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="4032" data-original-width="3024" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEihjmV-ra1tURZrp-C-Fr3PSpw9mGA1WC6DBIuLeL56MYd4ZKwu0o4MErglC6eoWkzdgAJRt06XUmX3O5o6xGLRvXVQ8X2Q4kTdsGYOpfmwXfKgT5XU94qbbuuVE95Rk8SRqKEGrJ_DwXTjzj8QzEJTPC-qV6SZ251NtW5VR6_gsBAAIZkrGby51uco/w300-h400/IMG_5368.HEIC" width="300" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhGoyY2YTcFPjvKhhXQ_ER5wEq_kwq5SBWOj1ld90fAXSVsPGW2HPpaIZW36Zm_e5mR4nqnDqVHjPQnNZYblEl-jwoECdf02pgGECpwGm5uPnjvypmCTQqhohx_sGyAb5m3xAY8S8DNzRl5EdEFpN6J5JNyueTTiCF8pHClSxbKjQWqGQE4wHBNBXf0/s4032/IMG_5370.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3024" data-original-width="4032" height="300" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhGoyY2YTcFPjvKhhXQ_ER5wEq_kwq5SBWOj1ld90fAXSVsPGW2HPpaIZW36Zm_e5mR4nqnDqVHjPQnNZYblEl-jwoECdf02pgGECpwGm5uPnjvypmCTQqhohx_sGyAb5m3xAY8S8DNzRl5EdEFpN6J5JNyueTTiCF8pHClSxbKjQWqGQE4wHBNBXf0/w400-h300/IMG_5370.HEIC" width="400" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjKeDxMUpdmn4Fx0jV1niH3XAR-NqGKz-soVQEAdt0ues5tl9RW9zKAKGgc_is1qWUdye1zm93AV5aDuguY4ayrL-Z3SmFFwGIrSIIJb3uGggREIORti5HCPWKOEFp529P1kA1Paclo7fpBC442p7KFID4jCRFPMta95IuI9oGlGFcd08ZZizGCpBEX/s4032/IMG_5371.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3024" data-original-width="4032" height="300" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjKeDxMUpdmn4Fx0jV1niH3XAR-NqGKz-soVQEAdt0ues5tl9RW9zKAKGgc_is1qWUdye1zm93AV5aDuguY4ayrL-Z3SmFFwGIrSIIJb3uGggREIORti5HCPWKOEFp529P1kA1Paclo7fpBC442p7KFID4jCRFPMta95IuI9oGlGFcd08ZZizGCpBEX/w400-h300/IMG_5371.HEIC" width="400" /></a></div><br /><p><br /></p><p>由於主鏡不太髒,所以吹完氣後我只噴了中性的 ROR 清潔劑,然後用脫脂棉輕輕擦一遍;對於最討厭的 "水漬" 問題,以前試過各種方法... ZEISS 的鏡片溼拭紙 (不佳,擦完水漬更多),Lenspen (也不佳,擦頭太小,而且還會小堆碳粉),這次發現脫脂棉最好用啦! 水漬一擦就掉,擦完的主鏡簡直完美。</p><p><br /></p><p>擦完就架起來校準尋星鏡還有調光軸了:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgTsLiLR7CzHJdbfPpUCijhGMQOeaZN8NijJq5vBG1semRuFcWECoV3D6E1P4Dnl66Mwy7mACliO-8waNYUzefWwQJI4cRUbAgu2X8svoqdTUg_SHouGh1N46DVhnfQRG4baOKcXhTlrKvnERp-dP10nC7re5OvlM5aTEEQyYYEDefmebe7qf0RkXnf/s1776/8B096B86-02C1-44FA-BF71-A58C73A04650-999-00000097403545AC.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1184" data-original-width="1776" height="266" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgTsLiLR7CzHJdbfPpUCijhGMQOeaZN8NijJq5vBG1semRuFcWECoV3D6E1P4Dnl66Mwy7mACliO-8waNYUzefWwQJI4cRUbAgu2X8svoqdTUg_SHouGh1N46DVhnfQRG4baOKcXhTlrKvnERp-dP10nC7re5OvlM5aTEEQyYYEDefmebe7qf0RkXnf/w400-h266/8B096B86-02C1-44FA-BF71-A58C73A04650-999-00000097403545AC.jpg" width="400" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><br /></div><br /><p>松本正像對角鏡的光路比較長,用在 Mewlon-180C 上很多目鏡都合不到焦,不過 Mewlon-210 不會,我手上所有目鏡都合得到。調準光軸的 Mewlon-210 星點相當犀利,對著已屆春末的天狼星,一眼就拆開小狼 Sirius b...... 從去年底到今年至少認真找過 5~6 次還不曾成功過呢! 沒想到這次快速搞定。</p><p><br /></p><p>北部春天的天況通常都不好,每天都是霧霧一層;找幾個比較亮的深空目標試,第一個是位在處女座範圍的橢圓星系 NGC 4697:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg7lASIYm8lw5J47U2WFOSdme7t-vlD2RFrYUxR4ntBuCwbz1_0W3qVocyoX12InhS-OYpG204YbA3xDsQWlLX9-k6jgNdijC2dOfB_iUrdFRPfHTjRYA8zx_msAoIWaZuET7n5YkIkD-guDkTrWzpZCtZfWO8psebB4Jtu2zdFwnvEx5KZD9ykvr_q/s2859/IMG_5409.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2859" data-original-width="2859" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg7lASIYm8lw5J47U2WFOSdme7t-vlD2RFrYUxR4ntBuCwbz1_0W3qVocyoX12InhS-OYpG204YbA3xDsQWlLX9-k6jgNdijC2dOfB_iUrdFRPfHTjRYA8zx_msAoIWaZuET7n5YkIkD-guDkTrWzpZCtZfWO8psebB4Jtu2zdFwnvEx5KZD9ykvr_q/w400-h400/IMG_5409.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 4697 (Mewlon-210; 10mm Ethos for 240X)</td></tr></tbody></table><br /><p><br /></p><p>NGC 4697 是 Caldwell 列表中的成員,編號 C52,視覺亮度有到 +9.3 的橢圓星系,距離我們 4000 萬光年遠,比 M95、M96 稍微遠一些;橢圓星系通常會比較好認,因為光比較集中;儘管天況不佳,我用 140X (17mm Ethos) 就找到了,最後用 240X (10mm Ethos) 畫圖,目標看起來可以說是又大又亮,仔細觀察會發現外型是 東--西 向拉長的橢圓,大小約 3 arcmin...... 其實資料上是 7 arcmin,天況不好的情形下大概只能看到一半大小而已;再看久一點眼睛充分適黑後,附近 13.X 等的星星也看到不少 -- 21 公分鏡就有這個好處。</p><p><br /></p><p>下一個深空目標也是 Caldwell 列表中的一員,算是位在牧夫座邊界的 NGC 5248,Caldwell 編號為 C45:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiTGCk7LztAkx3dYLqHYP54vM9z-wXq2XNpT2vPWsA1qPkHq4BRWhKKCCDJTgiMw1Fyce_lgkNsENUEpCMXqYEet3yWU7Xk4p6dfZk753IdDBEC6e-HqyBAHjONBRRj9UkTXN5NeZAoZj0Q96MGM9TVH5gBSLV-16SoM1Cf8-0t5en6HsWq1zVNUW83/s2339/IMG_5408.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2339" data-original-width="2339" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiTGCk7LztAkx3dYLqHYP54vM9z-wXq2XNpT2vPWsA1qPkHq4BRWhKKCCDJTgiMw1Fyce_lgkNsENUEpCMXqYEet3yWU7Xk4p6dfZk753IdDBEC6e-HqyBAHjONBRRj9UkTXN5NeZAoZj0Q96MGM9TVH5gBSLV-16SoM1Cf8-0t5en6HsWq1zVNUW83/w400-h400/IMG_5408.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 5248 (Mewlon-210; 12.5mm NIKON NAV HW for 193X)</td></tr></tbody></table><p><br /></p><p>NGC 5248 的視覺亮度 +10.14,距離我們大約 3900 萬光年遠,是個旋臂看起來很粗壯的棒旋星系。我同樣是用 140X (17mm Ethos) 找到的,沒有前一個容易,視覺亮度 9.X 與 10.X 還是差很多的唷。最後用 190X (12.5mm Nikon NAV HW) 觀察與畫圖,是很容易看出它 東南--西北 向拉長的外觀啦,但面對機會這麼好的目標真希望能清楚分出其旋臂;不過當時只能模模糊糊的看到南北各一條非常黯淡的旋臂模樣,多虧相當亮的核心做對比才能襯托出兩端拉長的雲氣看起來像旋臂,我自己覺得北又比南的那條稍微清楚些。</p><p><br /></p><p>還有一個以前畫過的南天 Caldwell 目標,編號 C74 的 NGC 3132,八裂星雲,也有人叫它南環狀星雲:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiAKK9PxzssvLvbbh0cAZsBDt_0gLUWkyUT5Xm8Dcdu_TfzPyHQa9lBWLID6Gim_0cAFYKYJKIHxJ8lH8bVG-MOeBslNceUDErLgTFJNGHpETVeTvPxFcW0vPFqFK9rG9smc2xY0NqFfF1PALEsb1akHIZ0WjMg329J-HpPa0vMRG1YlY36GuFk4Uir/s1971/IMG_5407.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1971" data-original-width="1971" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiAKK9PxzssvLvbbh0cAZsBDt_0gLUWkyUT5Xm8Dcdu_TfzPyHQa9lBWLID6Gim_0cAFYKYJKIHxJ8lH8bVG-MOeBslNceUDErLgTFJNGHpETVeTvPxFcW0vPFqFK9rG9smc2xY0NqFfF1PALEsb1akHIZ0WjMg329J-HpPa0vMRG1YlY36GuFk4Uir/w400-h400/IMG_5407.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 3132 (Mewlon-210; 6mm Ethos for 400X)</td></tr></tbody></table><br /><br /><br />雖然目標位在南天高度不高的位置,不過因為亮度夠,60X (40mm XW) 就認出來了,然後一路拉到 400X (6mm Ethos) 觀察;加上窄頻的濾鏡 O III 或 UHC 都能讓雲氣更明顯、範圍也更大,不過當時那邊的空域透明度不佳,所以最後是用 UHC 觀察及畫圖的。星雲外型看起來就是個長方形狀,大致 南--北 向是長邊,雖然模糊,但是倍率做高後雲氣中央有個空洞是看得出來的,然後我覺得環狀雲氣的南北兩端稍稍濃厚一點;星雲中央那顆 10.X 等星很清楚,不過不是中央星,真正引爆的是跟這顆 10.X 等星相距只有 1.6 arcsec 的 16 等星,哈伯相片才看得到啦。底下這張從 Wikipedia 引用的相片可以找到喔:<div><br /><br /><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh3-gzpSZUrB50kH1gFe2WT-IWZSj6lqFYhE9si4Kv0UiDQ-QN7JeRz7Hcp9emhNNJfHBJZsozr0JmaD7zcyA_y_zeYvOO_0DseOSVygNoRf74vbIeemLDweOuaL3IUNMak1BRPZhxuT_kqJaLTxXhc-azgBcdiP9po0rkHAohZXyIlH5kGNK16vhDG/s1920/Southern_Ring_Nebula_(NIRCam_Image).png" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1788" data-original-width="1920" height="373" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh3-gzpSZUrB50kH1gFe2WT-IWZSj6lqFYhE9si4Kv0UiDQ-QN7JeRz7Hcp9emhNNJfHBJZsozr0JmaD7zcyA_y_zeYvOO_0DseOSVygNoRf74vbIeemLDweOuaL3IUNMak1BRPZhxuT_kqJaLTxXhc-azgBcdiP9po0rkHAohZXyIlH5kGNK16vhDG/w400-h373/Southern_Ring_Nebula_(NIRCam_Image).png" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">By Image:National Aeronautics and Space Administration</td></tr></tbody></table><br /><div><br /></div><div><br /></div><div>因為實在太喜歡 4 吋鏡了,今年初忍不住又買的 FC-100 DZ 也曾在市區小陽台工作過,不過沒什麼看頭,找幾個在鄉下舊家條件差到快像市區時畫的星團,第一個是位在英仙座的星團 Trumpler 2 號:</div><div><br /></div><div><br /></div><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEifYFHpnrFqNDNhTPypxT1-X_P4UVH1Ti6lSjto68jou6P8_7l8ShQqpet7Gw2ZjNcakF5HW-0UG23F6c6GwrGvaKkEpf9B7nXiT_GzZ2ZNF8XS6YYkbWqEsRvH_AQVNSJZiJKMTzmlrlh4XutmNIXtzVYtMB1KYhSUBG1MEdqAyrYhy4PF2-FhTMZO/s2652/IMG_5212.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2605" data-original-width="2652" height="393" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEifYFHpnrFqNDNhTPypxT1-X_P4UVH1Ti6lSjto68jou6P8_7l8ShQqpet7Gw2ZjNcakF5HW-0UG23F6c6GwrGvaKkEpf9B7nXiT_GzZ2ZNF8XS6YYkbWqEsRvH_AQVNSJZiJKMTzmlrlh4XutmNIXtzVYtMB1KYhSUBG1MEdqAyrYhy4PF2-FhTMZO/w400-h393/IMG_5212.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Trumpler 2 (FC-100 DZ; 3.7mm Ethos for 216X)</td></tr></tbody></table><br /><div><br /></div><div>Trumpler 2 是相當亮的星團,所以倍率我也拉很高來看,視野裝得下的話能多高就多高。對照天文相片雖然沒那麼精彩,不過也數出不少星點了:</div><div><br /></div><div><br /></div><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiAw6wQgKYrN81o7Wzf6ddABFm4f0hD5ZFN0zQVQrI-zE0iiLHr5MBUFMaT9tQUzhJhH-ujEqkRf3zKOQcCHHzduz7YHLZB7k49vc4BM58EIvmWyDeUy-OD5yeKLCFOgLcD6ylVLarObetxxwhpMzNDVeeYI8hK2pIAOig21mthZSmEsrx0K2AbV52x/s744/Tr_2.png" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="624" data-original-width="744" height="335" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiAw6wQgKYrN81o7Wzf6ddABFm4f0hD5ZFN0zQVQrI-zE0iiLHr5MBUFMaT9tQUzhJhH-ujEqkRf3zKOQcCHHzduz7YHLZB7k49vc4BM58EIvmWyDeUy-OD5yeKLCFOgLcD6ylVLarObetxxwhpMzNDVeeYI8hK2pIAOig21mthZSmEsrx0K2AbV52x/w400-h335/Tr_2.png" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">By Roberto Mura - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=27440982</td></tr></tbody></table><br /><div><br /></div><div><br /></div><div>另外一個也在附近,算位在仙女座的 NGC 956:</div><div><br /></div><div><br /></div><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiv0HO5BMYkPu1do_2zfaHlFgt_lIsoDcE_yAmil5JlVxtgfM_MsmBJDZ2x5QghmnPkZLlxBL7szPoW7pUjtoSwRZmMscUyzDQPX2orh04bXnyLt3nJ_q26FX60WGP2N-qefwuHcMygTHIuI_M9p_HqzIazBZ29OdYuZ_wjkkZJmGqzzrw4GdvGeZNn/s2732/IMG_5211.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2732" data-original-width="2732" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiv0HO5BMYkPu1do_2zfaHlFgt_lIsoDcE_yAmil5JlVxtgfM_MsmBJDZ2x5QghmnPkZLlxBL7szPoW7pUjtoSwRZmMscUyzDQPX2orh04bXnyLt3nJ_q26FX60WGP2N-qefwuHcMygTHIuI_M9p_HqzIazBZ29OdYuZ_wjkkZJmGqzzrw4GdvGeZNn/w400-h400/IMG_5211.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 956 (FC-100DZ; 3.7mm Ethos for 216X)</td></tr></tbody></table><br /><div><br /></div><div>應該是天況太差,只能看到比較亮的一些星點;較亮的星點排成一條弧狀主幹,其它星點散落其間,看起來也蠻有特色的。我找了張從<a href="https://theskylive.com/sky/deepsky/ngc956-object"> theSkyLive.com 的相片</a>做對照,也是 DSS2 的:</div><div><br /></div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjMf6eeIGTgWKZf0818eMIJj-yCQL-9dIa0gCNaGTyrEdZVVA3w-uZyrzu2y_ts6_bACJLpnzajTrSnlgNv_EEEcB9KTvElVTJOeEo1FSJkU3_o6QLg0woND-O8fPKI-T-rMpxSzI9zrZARMcLBIvSCpA2R2W15xlVLPPyd6CgOoAS5h6sDlgncjgLw/s800/ngc956-dss2r-800.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="800" data-original-width="800" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjMf6eeIGTgWKZf0818eMIJj-yCQL-9dIa0gCNaGTyrEdZVVA3w-uZyrzu2y_ts6_bACJLpnzajTrSnlgNv_EEEcB9KTvElVTJOeEo1FSJkU3_o6QLg0woND-O8fPKI-T-rMpxSzI9zrZARMcLBIvSCpA2R2W15xlVLPPyd6CgOoAS5h6sDlgncjgLw/w400-h400/ngc956-dss2r-800.jpg" width="400" /></a></div><br /><div><br /></div><div><br /></div><div>還有一個 NGC 957,算在英仙座範圍裡:</div><div><br /></div><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh8abD7qt8QCP9kuP3s4ewM6SGiHDv-8m-61ZiZjxmmon7-JbIF8JjSa_weVTIriVp-RSTGF9xHSoi7suP2kqKBlF7GtaX6qKcWZijRxTPGUwwbLoKQ0--e54jmKA3zocHhao3GC_5eqMNGUQMY5HzwoxuANkTHE1wbebWGqKelOT170vmnNZ4ew7_N/s2673/IMG_5209.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2673" data-original-width="2673" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh8abD7qt8QCP9kuP3s4ewM6SGiHDv-8m-61ZiZjxmmon7-JbIF8JjSa_weVTIriVp-RSTGF9xHSoi7suP2kqKBlF7GtaX6qKcWZijRxTPGUwwbLoKQ0--e54jmKA3zocHhao3GC_5eqMNGUQMY5HzwoxuANkTHE1wbebWGqKelOT170vmnNZ4ew7_N/w400-h400/IMG_5209.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 957 (FC-100DZ; 3.7mm Ethos for 216X)<br /></td></tr></tbody></table><br /><div><br /></div><div>星點分布看起來也頗稀疏,目視分佈稀疏的星團有些優點,比如說外觀容易有特殊聯想的形狀,然後星點有亮有暗、有大有小,因此看起來很有景深的立體感。找張 Wikipedia 上的相片來對照:</div><div><br /></div><div><br /></div><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjvNm26fWXKkawhpZvC82XISSmn9iyFcVpJo0wIkazuNywTjPpTNYuZOZYawtB_ZOb-jPxnJPdMv-gj45QQNfEm6RDJ9azVaoWsAe_3YeyaVXdvRMpLvw2sV1zqg3dM0qtvB33mfxGGYC083XEGYOzdPXvpX2iofvzc6OV8MDOlgkLgW1vhnEabWBGR/s714/NGC_957.png" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="600" data-original-width="714" height="336" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjvNm26fWXKkawhpZvC82XISSmn9iyFcVpJo0wIkazuNywTjPpTNYuZOZYawtB_ZOb-jPxnJPdMv-gj45QQNfEm6RDJ9azVaoWsAe_3YeyaVXdvRMpLvw2sV1zqg3dM0qtvB33mfxGGYC083XEGYOzdPXvpX2iofvzc6OV8MDOlgkLgW1vhnEabWBGR/w400-h336/NGC_957.png" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">By Roberto Mura - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=27458615</td></tr></tbody></table><br /><div><br /></div><div><br /></div><div><br /></div><div>除了 FC-100 DZ 外,也有 Mewlon-180C 在市區陽台畫的雙星,而且我覺得這兩組位在大熊前腳的雙星還蠻漂亮的:</div></div><div><br /></div><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgaQNMYb3jspvnw1CBuic0OjPwdXSm8vOi0pGorjZ_BDXFB_hO5YbVkc4yzkl-cJb1WAWMTGd9dpo13ADgRmT8halv8DfIRZp2sQ_I5b5rr_3XGaaxpT3z3ECjHYfoKtJnTMe4Lke66HpV7cLUJ4899d9MxRVVo0MoBjwkbfus8NVKXVVy5VPMho_Aq/s1818/IMG_5200.PNG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1818" data-original-width="1818" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgaQNMYb3jspvnw1CBuic0OjPwdXSm8vOi0pGorjZ_BDXFB_hO5YbVkc4yzkl-cJb1WAWMTGd9dpo13ADgRmT8halv8DfIRZp2sQ_I5b5rr_3XGaaxpT3z3ECjHYfoKtJnTMe4Lke66HpV7cLUJ4899d9MxRVVo0MoBjwkbfus8NVKXVVy5VPMho_Aq/w400-h400/IMG_5200.PNG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Alula Borealis (Nu Ursae Majoris; STF 1524) -- Mewlon 180C; 23mm XW + 2X barlow for 188X</td></tr></tbody></table><div><br /></div><div><br /></div><div>大熊座 Nu 星,雙星的 STF 代號是 STF 1524,感覺有點阿拉伯味的英文名叫 "Alula Borealis";主星亮度 +3.5,另外一顆 +10 等,亮度差異頗大,實際看到的樣子就會一大顆旁邊一小顆細細小小的,就像上面畫的 ---- 我自己也覺得這張畫得很傳神。 </div><div><br /></div><br /><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh3K6ge_6IQGgkpZ_zyMqeHmwvNJ3KLGRF6glr_dCXiNeVgpqO9fpYKvXk6Q9RGMRRYn7o_UQMrJcvGTOgK_wG8wvX-jmAvd2PuriRJmnK5z9MozD0Mq4imKSb8C-0uJfIfiicONwyg-IhCrupvlwlqXiw3k0QKJwVhKV_vm09pCtxF0Re00q_wbBho/s1713/IMG_5199.PNG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1713" data-original-width="1713" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh3K6ge_6IQGgkpZ_zyMqeHmwvNJ3KLGRF6glr_dCXiNeVgpqO9fpYKvXk6Q9RGMRRYn7o_UQMrJcvGTOgK_wG8wvX-jmAvd2PuriRJmnK5z9MozD0Mq4imKSb8C-0uJfIfiicONwyg-IhCrupvlwlqXiw3k0QKJwVhKV_vm09pCtxF0Re00q_wbBho/w400-h400/IMG_5199.PNG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Alula Australis (Xi Ursae Majoris; STF 1523) -- Mewlon 180C; 23mm XW + 2X barlow for 188X</td></tr></tbody></table><br /><div><br /></div><div>另外一組大熊座 Xi 星,雙星的 STF 代號是 STF 1523,英文名叫 "Alula Australis";前面那顆 Nu 星 "Borealis" 好像是 "北極" 的意思,這顆 Xi 星 "Australis" 則是 "南極" 的意思;主星亮度 +3.78,另外一顆 +4.8 等亮,亮度差不多但靠很近 2.5" (對 18 公分鏡來說沒什麼難),seeing 不佳或鏡子不夠銳利時看起來就像上圖一樣,兩顆小毛球 -- 畫得很像喔。</div><div><br /></div><div><br /></div><div>再來是合照圖,Mewlon-180C 視野不夠大,只好拿出小可愛 FC-76 DCU:</div><div><br /></div><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiqV3J0tEwAYy2TsVXA7TQflu_akFpfPwvkfOUIImx77X0RGl3WZUYhDMkPCHGvfNbKsqevX0kOIqwP874-sug-c7ox3WN9sETmYswQNbdMDO5dxuI0FXHhMfM4BSlmHdTSCCp_qDJr2dJyZMLgvOBiw1wawwIToc5p9SGdH_lJerGJBS0KWBWSqlAC/s2177/IMG_5198.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2177" data-original-width="1519" height="640" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiqV3J0tEwAYy2TsVXA7TQflu_akFpfPwvkfOUIImx77X0RGl3WZUYhDMkPCHGvfNbKsqevX0kOIqwP874-sug-c7ox3WN9sETmYswQNbdMDO5dxuI0FXHhMfM4BSlmHdTSCCp_qDJr2dJyZMLgvOBiw1wawwIToc5p9SGdH_lJerGJBS0KWBWSqlAC/w446-h640/IMG_5198.JPG" width="446" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Alula Australis & Alula Borealis (FC-76 DCU; 23mm XW for 25X)<br /></td></tr></tbody></table><br /><div><br /></div><div>真的是一南一北,真特別!</div><div><br /></div><div><br /></div><div>最後讓改用松本正像對角鏡的 CFF 160 畫的兩個目標搭個便車,也在測試 23mm XW 啦:</div><div><br /></div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg9eqXqsbMBNfuOsXOdKauDPQd-4x-MMxBi4PWnMEPdbC9zBfrJ-KfGDHIjJnrU1UYyMLB4WnFgOeseRQDIDDr6N_mo_1s7IxIkcIyL4qRvqRip7vjXKIwSqcUcmO0TeIcySIHD89X4P8jnMnYVe5zuC-WWBqCeuJqT7xhyJ-68LbF6Bp8jxeBS0ia-/s1271/ED8D20EA-2B40-4FAD-82CC-5C8E43BEF19A-17321-00000B7FD9539553.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1184" data-original-width="1271" height="373" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg9eqXqsbMBNfuOsXOdKauDPQd-4x-MMxBi4PWnMEPdbC9zBfrJ-KfGDHIjJnrU1UYyMLB4WnFgOeseRQDIDDr6N_mo_1s7IxIkcIyL4qRvqRip7vjXKIwSqcUcmO0TeIcySIHD89X4P8jnMnYVe5zuC-WWBqCeuJqT7xhyJ-68LbF6Bp8jxeBS0ia-/w400-h373/ED8D20EA-2B40-4FAD-82CC-5C8E43BEF19A-17321-00000B7FD9539553.jpg" width="400" /></a></div><br /><div><br /></div><div><br /></div><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjtEcT-S4UDaD2-cEDsBeaACwcpYLgy9pFzu4LRg1f4e0W58I5DmQn8uzoREqkYQ5_5FvWQu0zsBBryaV_eX8of7ayVIjM-Tm32t4tspMV6Zvlzkg7mpa18OD4gwuadgOR1IXDb_DAQatXPL45FNUBHtLXrI9HNxwcq4lVVStZAqG7ctu4AsWS1UEQC/s3424/IMG_5125.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="3424" data-original-width="2784" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjtEcT-S4UDaD2-cEDsBeaACwcpYLgy9pFzu4LRg1f4e0W58I5DmQn8uzoREqkYQ5_5FvWQu0zsBBryaV_eX8of7ayVIjM-Tm32t4tspMV6Zvlzkg7mpa18OD4gwuadgOR1IXDb_DAQatXPL45FNUBHtLXrI9HNxwcq4lVVStZAqG7ctu4AsWS1UEQC/w325-h400/IMG_5125.JPG" width="325" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Messier 44 (CFF 160 f/6.5; 23mm XW for 45X)</td></tr></tbody></table><br /><div><br /></div><div><br /></div><div>還有當時還蠻熱門的彗星目標 C/2022 E3 (ZTF):</div><div><br /></div><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj_LJQr6wDXm7_fgWKp6Yt1Wasktl7ppp7MZ-Q8GT_BIJSoskGBqaot0zwgbE9StcX9XJnM26vSqQHFaKKlxElD0ouCreRJmHzDLIEW5mQoougnbyA6bVGfShAhq5-Jhg-Ska1hA8gNfjK-eWIycCxinPVpMeCn7jVwCUChzT7EfWfj3gy6UvryBLsa/s2289/IMG_5070.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2289" data-original-width="2289" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj_LJQr6wDXm7_fgWKp6Yt1Wasktl7ppp7MZ-Q8GT_BIJSoskGBqaot0zwgbE9StcX9XJnM26vSqQHFaKKlxElD0ouCreRJmHzDLIEW5mQoougnbyA6bVGfShAhq5-Jhg-Ska1hA8gNfjK-eWIycCxinPVpMeCn7jVwCUChzT7EfWfj3gy6UvryBLsa/w400-h400/IMG_5070.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">C/2022 E3 (ZTF) -- CFF 160 F/6.5; 6mm + 2X barlow for 347X</td></tr></tbody></table><br /><div><br /></div><div><br /></div><div>以上,所有候選人都回關西舊家的防潮櫃待著吧,Mewlon-210 準備來市區上班!!</div><div><br /></div><div><br /></div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgdluwgNWLjyDvp4ZKTCF76u7K5NEZBT6e27TtGRLVkDTKaGMm3iWL5OfXTCUSEzMFlHYfggjMWAEr4i35MwhhPrv-WrgLgAUwE-C2OigS-MfrNMwfMo82-RrNZ4jc778raYP8C3UPJcn3d3YagNldcHJTpqRIxtDLd4YiakyVH8gHVTFb-qS9ClUYP/s1182/05E096D5-D157-490F-A0A9-104B2D12BB51-999-0000009737E45B87.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1182" data-original-width="1182" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgdluwgNWLjyDvp4ZKTCF76u7K5NEZBT6e27TtGRLVkDTKaGMm3iWL5OfXTCUSEzMFlHYfggjMWAEr4i35MwhhPrv-WrgLgAUwE-C2OigS-MfrNMwfMo82-RrNZ4jc778raYP8C3UPJcn3d3YagNldcHJTpqRIxtDLd4YiakyVH8gHVTFb-qS9ClUYP/w400-h400/05E096D5-D157-490F-A0A9-104B2D12BB51-999-0000009737E45B87.jpg" width="400" /></a></div><div><br /></div>s00639http://www.blogger.com/profile/08382086616742866311noreply@blogger.com8tag:blogger.com,1999:blog-7477593545230087753.post-57891667915669307612023-04-27T11:59:00.007+08:002023-05-03T14:52:06.303+08:00把 16 吋杜普生搬上屋頂了<p>其實也還好啦,當初請馬可先生製作時就打算做可以分解組合帶出門的架構,上屋頂只是拆拆再裝裝就好,拖這麼久也只是想説找天時間充裕時能優閒來搬:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgUmClXlfUuDpVEQVG9gdehuHlLki_1cj0mZGef_R-nJejUjiviH5VquEzRfc4ZnqwAWlJ0EZTl0DG6z488NENEmJ52I2nyIbLtSZVOd2-4zEy0clGDSVSWQWQpUptcVsulkNLnFtz0Ciu5MzoIQQEhQcpa8SFmFK0ioo92vNwRMbPYSDNYiGEnqU2Z/s1774/BCD9E0AF-C0E7-4D27-A596-A8C197AA0A22-1696-000000D31DFE92BB.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1774" data-original-width="1168" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgUmClXlfUuDpVEQVG9gdehuHlLki_1cj0mZGef_R-nJejUjiviH5VquEzRfc4ZnqwAWlJ0EZTl0DG6z488NENEmJ52I2nyIbLtSZVOd2-4zEy0clGDSVSWQWQpUptcVsulkNLnFtz0Ciu5MzoIQQEhQcpa8SFmFK0ioo92vNwRMbPYSDNYiGEnqU2Z/w264-h400/BCD9E0AF-C0E7-4D27-A596-A8C197AA0A22-1696-000000D31DFE92BB.jpg" width="264" /></a></div><p></p><p><br /></p><p>整組拆一拆最重的反而是主鏡呢,而體積最大 (但重量最輕) 的是下面相片裡右邊連著上鏡筒的支架部分,當然支架拆下來後也變成幾件小東西了,但少掉一些拆、裝步驟總是方便,懶得拆的話可以整個骨架扛在肩上爬屋頂,看起來雖然有點可怕,不過其實還算容易:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEho3PrWBib5oWBhBr_xKXD1EkOpTgRR3KAGi80cR3s9veHod3vSlsFzSrAlog8AdqI6D9TjQMo3WWarGz9ErVlOQkaUQ3RbU3lQq9s0XtvhcjjxJtvK2qMzlb2ntnKpF7Z0W0chqoNUQ__kPmBLGu234fU7NGjmjmXtFcY0Qao7CqRXReDudua7jtlB/s2180/IMG_4311.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2180" data-original-width="1636" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEho3PrWBib5oWBhBr_xKXD1EkOpTgRR3KAGi80cR3s9veHod3vSlsFzSrAlog8AdqI6D9TjQMo3WWarGz9ErVlOQkaUQ3RbU3lQq9s0XtvhcjjxJtvK2qMzlb2ntnKpF7Z0W0chqoNUQ__kPmBLGu234fU7NGjmjmXtFcY0Qao7CqRXReDudua7jtlB/w300-h400/IMG_4311.HEIC" width="300" /></a></div><br /><p><br /></p><p>架好之後看著夕陽等天黑,期待滿天星...... 結果天黑後是半天雲,真可惜。將就著天空有開的方向找目標;我的 "待看清單" 一直維持有兩份,一份是 "困難的",另一份是 "簡單的" ,看這種天況只能用 "簡單的" 版本了。大 DOB 沒自動尋星,那就 hopping 吧,本來第一個是位在英仙手拿盾牌上的 NGC 1513,不過半途中也有幾個不曾畫過的星團,先是 NGC 1496:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg2IGw9c6L8ZCcCmPUZzBThMbiqixY8mJfWvOYN1ums7soFgIJYBUxkLmPFEovHbMbbnxAReJWq_fSnUvCuDdwkPdokXhXbZnZhj5t-MiPkMDIDRaJiY8yKRydqsJqKpY-RI7JC0MRciNim_o85Z2-nLGakhvAw4mMqxqYuA1CwMhsRpneJsTCPsHrW/s1857/IMG_5154.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1857" data-original-width="1857" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg2IGw9c6L8ZCcCmPUZzBThMbiqixY8mJfWvOYN1ums7soFgIJYBUxkLmPFEovHbMbbnxAReJWq_fSnUvCuDdwkPdokXhXbZnZhj5t-MiPkMDIDRaJiY8yKRydqsJqKpY-RI7JC0MRciNim_o85Z2-nLGakhvAw4mMqxqYuA1CwMhsRpneJsTCPsHrW/w400-h400/IMG_5154.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 1496 (406/1800mm dobsonian, 6mm Ethos for 300X)</td></tr></tbody></table><br /><br />貼 DSS2 的相片比對一下:<div><br /></div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhfL5Gz8Z5qvqdLq2Cv4a4DABp7Stdh_loXCJq_SNRTpL-kNXoRyqwXgQe0FbK6Gnq_5ZCOA6XQM3nxQ16JltcSCsxtNnsH2eiKXNJ0lld4p0daAvUPBlDk4lN2Xxsm9VUUf_cXk-CXBJLrrD0mKy5ztT_RJMdmTWCBJKyUg2mRAFt0D89txZIbO7sp/s377/%E6%9C%AA%E5%91%BD%E5%90%8D.png" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="377" data-original-width="322" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhfL5Gz8Z5qvqdLq2Cv4a4DABp7Stdh_loXCJq_SNRTpL-kNXoRyqwXgQe0FbK6Gnq_5ZCOA6XQM3nxQ16JltcSCsxtNnsH2eiKXNJ0lld4p0daAvUPBlDk4lN2Xxsm9VUUf_cXk-CXBJLrrD0mKy5ztT_RJMdmTWCBJKyUg2mRAFt0D89txZIbO7sp/w341-h400/%E6%9C%AA%E5%91%BD%E5%90%8D.png" width="341" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><br /></div>因為是牛頓鏡看的,所以有把天文相片上下左右倒過來。目標是用 78X (23mm XW) 認出來的,霧霧一小團,180X (10mm Ethos) 看有比較好,星點也慢慢拆出來,可是天況不佳只能硬著頭皮上到 300X (6mm Ethos) 才完成素描。這片 40 公分鏡好像極限就這樣了,倍率再往上拉星點就變糊糊的,而且弄到 300X 後,seeing 又成為另一個變數,seeing 不好的話星點扭七歪八的也很難畫圖。走到這邊前有先試過天頂獵戶四合星的另兩顆,F 可以,E 就怎麼樣都看不到。<div><br /></div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg62CACJRs-h3uB111IMw2JncBJvcwD96Yg8Ip3Abvd4hvrax8u0HKMyNPpOQEBJuJhGjex00bkvRwZySvKLcwlj4jkQPV1EFRAgMURr-J5FUvrrASqOO90GsCJXUcqrUH4Pdwmgeg_A_su_4e0aBuEqKXBSfd2P_UijPPESIrzfninMb26zXY54bSj/s1776/C752E531-99DC-41C4-BA0D-380007306A5D-17793-00000C68A3520313.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1184" data-original-width="1776" height="266" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg62CACJRs-h3uB111IMw2JncBJvcwD96Yg8Ip3Abvd4hvrax8u0HKMyNPpOQEBJuJhGjex00bkvRwZySvKLcwlj4jkQPV1EFRAgMURr-J5FUvrrASqOO90GsCJXUcqrUH4Pdwmgeg_A_su_4e0aBuEqKXBSfd2P_UijPPESIrzfninMb26zXY54bSj/w400-h266/C752E531-99DC-41C4-BA0D-380007306A5D-17793-00000C68A3520313.jpg" width="400" /></a></div><br /><div><br /></div><div><br /></div><div><br /></div><div>NGC 1444 也在附近:</div><div><br /></div><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEim5XcotvBCC2-D4lVTfzij_thmWb3zgjB9XKzWntgENFIOJTN5ONNAJrYRsnvmRRtuwOU37wmY5WT_yUoLEa8aPgBxjmqHqU9qGE7va0KOF6yYcNheb7gYxgk_PfTMs3zBdG20_fdJTgjLcOzpTG-KilEUOJcJM8FIYmsHEIpvWHQvzamjZAeYqlnk/s1789/IMG_5155.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1789" data-original-width="1789" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEim5XcotvBCC2-D4lVTfzij_thmWb3zgjB9XKzWntgENFIOJTN5ONNAJrYRsnvmRRtuwOU37wmY5WT_yUoLEa8aPgBxjmqHqU9qGE7va0KOF6yYcNheb7gYxgk_PfTMs3zBdG20_fdJTgjLcOzpTG-KilEUOJcJM8FIYmsHEIpvWHQvzamjZAeYqlnk/w400-h400/IMG_5155.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 1444 (406/1800mm dobsonian, 6mm Ethos for 300X)<br /></td></tr></tbody></table><br /><div><br /></div><div><br /></div><div>DSS 2 的相片,同樣也有做上下左右的反向:<br /><div><br /></div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg11CSk20PzTgnVEh1CvlmcltBMzHpeAjHy2eTZh7ZYUCMmQyDu_Yp1Ma0d0WmoFSuyTmd-xFvYo0eMJ-tEeN1QDwxkkHg5xAap9KfD3cOh-7UEBMlhcPdAMP8qPN8dgRrmjoSkSZJFrbzDM2d8uYA6ydDK9WWbQm5iQ7Ug8RguE1be3f6q8gulBZFK/s303/%E6%9C%AA%E5%91%BD%E5%90%8D1.png" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="303" data-original-width="300" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg11CSk20PzTgnVEh1CvlmcltBMzHpeAjHy2eTZh7ZYUCMmQyDu_Yp1Ma0d0WmoFSuyTmd-xFvYo0eMJ-tEeN1QDwxkkHg5xAap9KfD3cOh-7UEBMlhcPdAMP8qPN8dgRrmjoSkSZJFrbzDM2d8uYA6ydDK9WWbQm5iQ7Ug8RguE1be3f6q8gulBZFK/w396-h400/%E6%9C%AA%E5%91%BD%E5%90%8D1.png" width="396" /></a></div><br /><div><br /><br />找 NGC 1444 時一定畫倍中樣最亮那顆 HD 23675 的雙星所吸引,雙星編號是 STF 446,+6.82, +9.89, 分開 8.8",PA 是 254 度 (2015 的資料)。不過, google 網路相片,不管是 WIKI 或上面這張 DSS2 的相片,伴星看起來 "好像" 都位在 PA 可能 20~30 度左右的地方,而 PA 254 度處看不出有伴星;但是如果 google "素描",素描都是親眼看的,伴星位置就跟我看的一樣了。不知道彼此運轉的週期如何? 會不會使因為動得快,而相片又多是很多年以前拍的?</div><div><br /></div><div><br /></div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi-n0HNEjKcpi93LFcjZ7bDXSugfwJmY1XrqPee8JbpKPk6JDB3UyJnBHR5cUx0hh0wH85NVtmCWM8fJi7XpbtD760QQZ02HHJifIg1jv19_W9xlsCsBNIju_Osv4kUsZv0kYAmuGCX7mG4gBYgemDbT_52Ses-IFjF3iS0TydRCzbww2cnFD3nFor3/s1182/B711436F-2C1C-4974-8BDB-EC6EB5C5FEB7-17793-00000C6894DF318B.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1182" data-original-width="1182" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi-n0HNEjKcpi93LFcjZ7bDXSugfwJmY1XrqPee8JbpKPk6JDB3UyJnBHR5cUx0hh0wH85NVtmCWM8fJi7XpbtD760QQZ02HHJifIg1jv19_W9xlsCsBNIju_Osv4kUsZv0kYAmuGCX7mG4gBYgemDbT_52Ses-IFjF3iS0TydRCzbww2cnFD3nFor3/w400-h400/B711436F-2C1C-4974-8BDB-EC6EB5C5FEB7-17793-00000C6894DF318B.jpg" width="400" /></a></div><br /><div><br /></div><div><br /><br />最後主角就是 NGC 1513 了:</div><div><br /></div><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgHj3SKZtaXJ1GMrMNi1Zo_GqekFmZttSm7eqQDTmyKTD2UzXPMIEIAbHt-89ayckYeU5ULXM8gvY5-SXBtuQfr5sLp4J3OqVvVp-k-O25WOTf7KfouROzKVHFmlrl1LQr7SwtrKmHizvD542ZQ3yn6m0s39lj5wz7gvkNm_-lNxyCKjTeHMJe6J_L2/s1832/IMG_5156.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1832" data-original-width="1762" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgHj3SKZtaXJ1GMrMNi1Zo_GqekFmZttSm7eqQDTmyKTD2UzXPMIEIAbHt-89ayckYeU5ULXM8gvY5-SXBtuQfr5sLp4J3OqVvVp-k-O25WOTf7KfouROzKVHFmlrl1LQr7SwtrKmHizvD542ZQ3yn6m0s39lj5wz7gvkNm_-lNxyCKjTeHMJe6J_L2/w385-h400/IMG_5156.JPG" width="385" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 1513 (406/1800mm dobsonian, 6mm Ethos for 300X)</td></tr></tbody></table><br /><div><br />DSS2 的相片長這樣:</div><div><br /></div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgeqveairjel4JsblFegWTdyYoWfZYOKtjaQg7apd88kbkRHdMnfxUKxCH6y8RoJ7mLxRmm330h4LvRYXlkreoUrv6XptklopTYY77qUpaTRbBlnhSellN5rx-elG49XiBjRAdJhALgSXddZ8KP-G9Ub_XCZ8Seo9p_miyhzHJHH2wzD-NfkP0vODT2/s800/ngc1513-dss2r-800.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="800" data-original-width="800" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgeqveairjel4JsblFegWTdyYoWfZYOKtjaQg7apd88kbkRHdMnfxUKxCH6y8RoJ7mLxRmm330h4LvRYXlkreoUrv6XptklopTYY77qUpaTRbBlnhSellN5rx-elG49XiBjRAdJhALgSXddZ8KP-G9Ub_XCZ8Seo9p_miyhzHJHH2wzD-NfkP0vODT2/w400-h400/ngc1513-dss2r-800.jpg" width="400" /></a></div><br /><div><br />天況不佳,儘管拿這麼大隻鏡子看也沒數出多少星點;第一眼的感覺是大星團裡包著另一個小星團的兩層模樣,有點可惜,天況好的話應該是個頗為精彩的星團。</div><div><br /></div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiVBHJT2IkpQAICdj7Tgcy7mqL9fB6U9cZfe4poAGxw2H457ievJz73fkkUyXiSi7ft_GLeoXpV9CxqZjrOPOuV2aXEryf6WnFlJ_dRXTeY5c28I-O124D0Kt34rYCv-KkZsPXrcuu-wDyj2Y4A7NQtANmRGFpVwz0H_O5Dtxm8zVHUdska_E4eq40-/s1776/5933385B-2309-4C8F-9E64-092DF24E1B4B-17793-00000C687F74D94B.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1184" data-original-width="1776" height="266" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiVBHJT2IkpQAICdj7Tgcy7mqL9fB6U9cZfe4poAGxw2H457ievJz73fkkUyXiSi7ft_GLeoXpV9CxqZjrOPOuV2aXEryf6WnFlJ_dRXTeY5c28I-O124D0Kt34rYCv-KkZsPXrcuu-wDyj2Y4A7NQtANmRGFpVwz0H_O5Dtxm8zVHUdska_E4eq40-/w400-h266/5933385B-2309-4C8F-9E64-092DF24E1B4B-17793-00000C687F74D94B.jpg" width="400" /></a></div><br /><div><br /><br /><br />之後回頭去看雙子腳邊的 M35 及比 M35 遠三倍的 NGC 2158:</div><div><br /></div><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj_jZ1gVV9iwLIhhmqEtYc4-hJIcnpVTnmGNGFj8Xm6AS9TmTqpNp9pOwsj6xKlgk9a-P4J06pMhY_IrpnbDZzKgw0IghVVMt8UjdqqHmYgLDZzCMi6Y9ZXAHKoAO_9aMuVGRrPzIY5GFdk_3NlFcM6HzH-Xssf31hiSf1VGAvbF0q8ZMDb-fdqen8b/s2173/IMG_5157.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2173" data-original-width="2173" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj_jZ1gVV9iwLIhhmqEtYc4-hJIcnpVTnmGNGFj8Xm6AS9TmTqpNp9pOwsj6xKlgk9a-P4J06pMhY_IrpnbDZzKgw0IghVVMt8UjdqqHmYgLDZzCMi6Y9ZXAHKoAO_9aMuVGRrPzIY5GFdk_3NlFcM6HzH-Xssf31hiSf1VGAvbF0q8ZMDb-fdqen8b/w400-h400/IMG_5157.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 2158 (406/1800mm dobsonian, 6mm Ethos for 300X)<br /></td></tr></tbody></table><br /><div><br /><br />難得在平地可以看 NGC 2158 看這麼清楚,至少拆出不少星點,星點分布為長長一條,當然北側也有很多星點,不過分解不出來,看起來就霧霧偏黃色的一小片區域。<br /><br /><br /><br /></div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgpml9JO32XwOV8-k6f0Ra5lakW3Vebp6Y7o8OLshO-a43y0u2DmC0RaZ8A96n9cPyIGPgqYp0g9r73FQu47HIhkPcKVGuTxk5kHjJKOz-BIXAu8UKb9kDouYQ12TLG-KSwwD4dmh6iANcn7rpLySDUf75mXAToe3fhfwheljYkrqTeDFZDC7IpARFw/s1776/77B279BE-5598-4413-9D98-A00EFF905540-17793-00000C687AEFBC66.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1184" data-original-width="1776" height="266" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgpml9JO32XwOV8-k6f0Ra5lakW3Vebp6Y7o8OLshO-a43y0u2DmC0RaZ8A96n9cPyIGPgqYp0g9r73FQu47HIhkPcKVGuTxk5kHjJKOz-BIXAu8UKb9kDouYQ12TLG-KSwwD4dmh6iANcn7rpLySDUf75mXAToe3fhfwheljYkrqTeDFZDC7IpARFw/w400-h266/77B279BE-5598-4413-9D98-A00EFF905540-17793-00000C687AEFBC66.jpg" width="400" /></a></div><br /><div><br /></div><div>因為雙子座附近包括麒麟座有開,所以也看了一下去年好像忘了看的哈伯變星雲:</div><div><br /></div><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi7tQ956gCAE0pJtNApaiBjtGKdRSijXvUgJIKYf_jXt4Hi4e0AqtTaHrpx0QWFK5l04QK6GGywn5NNarZC_N-PIRY7K4_navYY7V5xLVmM04nCKvgL-jy_gZoem1B5s1-fvYbUU_io3BSNIhlp9_XJL0e5NVszA-U3Fcj2Stdj7hcQEbXTkXVSA_NR/s2697/IMG_5153.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2697" data-original-width="2697" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi7tQ956gCAE0pJtNApaiBjtGKdRSijXvUgJIKYf_jXt4Hi4e0AqtTaHrpx0QWFK5l04QK6GGywn5NNarZC_N-PIRY7K4_navYY7V5xLVmM04nCKvgL-jy_gZoem1B5s1-fvYbUU_io3BSNIhlp9_XJL0e5NVszA-U3Fcj2Stdj7hcQEbXTkXVSA_NR/w400-h400/IMG_5153.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 2261 (406/1800mm dobsonian, 4.7mm Ethos for 383X)<br /></td></tr></tbody></table><br /><div><br /><br />跟過去每次看的差不多,亮亮的頭拖著長尾巴,有點像彗星的模樣;仔細看尾巴形狀的雲氣,東側、前側比較濃而且拖比較長;西側雲氣短,西側邊緣貼著暗星雲,東西兩條分岔的雲氣尾巴夾著的暗部區域很清楚,其實當天能看到這樣就不錯了.... 畢竟用 40 公分鏡做到快 400X 耶,看不到就太慚愧了。<br /><br /><br /></div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEghHMugjRSzrvmxb76XR-EpfagI-HO4UxF8TTLPh-Ox89pAmxB7yELk2k5fpu5hFpDXmQDJnv4W0EgfT7NNItAv5bUoV9PKjYEd5q5zEGCQQca0eBAaTOvYxN4Srs-g3_6GMkRpUSc_0Wcr6z5z833jO4cGiHZBGnRFuNmxSLul8ZDhOVPdWCTgkXv5/s1182/79735ABE-945F-4E2E-AAEC-B9FB59CD8111-17793-00000C68903CB932.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1182" data-original-width="1182" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEghHMugjRSzrvmxb76XR-EpfagI-HO4UxF8TTLPh-Ox89pAmxB7yELk2k5fpu5hFpDXmQDJnv4W0EgfT7NNItAv5bUoV9PKjYEd5q5zEGCQQca0eBAaTOvYxN4Srs-g3_6GMkRpUSc_0Wcr6z5z833jO4cGiHZBGnRFuNmxSLul8ZDhOVPdWCTgkXv5/w400-h400/79735ABE-945F-4E2E-AAEC-B9FB59CD8111-17793-00000C68903CB932.jpg" width="400" /></a></div><br /><div><br /></div><div>這幾個就是 16" DOB 初上屋頂的成績了...... 實在不怎麼樣,希望再度改造之後能更常上屋頂;要改什麼呢? 比如不用再墊椅子的 f/3.7 低膨脹係數玻璃主鏡應該不錯。<br /><br /><br /><br /><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhYqT2sCGH8N1Q-K09GJ7o1dqAjW8BSP5jLtf-1pSlDeCpAnqb4fmGS1cG_jc6xBEuCLgFiTe7lgGyQMwy6Z2s200-bH7cMqhfB_MAqmyutPhmCE0sTmElUP_3l7G_ii8CjP33pNmKoMo2xDCa9u5R5t9LgpKnHrHs3dq2IDfLPYZQM6lKdulTJ3aKk/s1776/1EB596ED-A673-4FC0-8EBB-21AC71F79B3B-1696-000000D2FE4B64CB.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1776" data-original-width="1184" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhYqT2sCGH8N1Q-K09GJ7o1dqAjW8BSP5jLtf-1pSlDeCpAnqb4fmGS1cG_jc6xBEuCLgFiTe7lgGyQMwy6Z2s200-bH7cMqhfB_MAqmyutPhmCE0sTmElUP_3l7G_ii8CjP33pNmKoMo2xDCa9u5R5t9LgpKnHrHs3dq2IDfLPYZQM6lKdulTJ3aKk/w266-h400/1EB596ED-A673-4FC0-8EBB-21AC71F79B3B-1696-000000D2FE4B64CB.jpg" width="266" /></a></div><br /><p><br /></p></div></div>s00639http://www.blogger.com/profile/08382086616742866311noreply@blogger.com2tag:blogger.com,1999:blog-7477593545230087753.post-86773821289916941162023-04-23T16:56:00.001+08:002023-04-23T16:56:09.573+08:00冬末春初的幾個目標觀察 -- Gum 1, Gum 3, NGC 3044, NGC 4635, NGC 4245<p>其實 4/20 的節氣是 "穀雨",都已經是春季最後一個節氣了,寫 "冬末春初" 顯然又是篇過期筆記~~ 幸好最近都有習慣先手寫下觀察簡要,不然二月的東西早就忘光光了。</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjaMoVodnmWZ_2DZD3Ygju5OVBVZCjSN-76RjGvLnMtr9ilDCo0yDVgTmGxIbUuNm5O9oBt6e0lb6aAF5BKLIgk5Aa1Fljd3H4Ud-W0umQYXFtKiDZMerIvYoV9Qk96rRJuAmF7JZM8NAYtvT5Ai-LiC_tjB8Wnx6wB10b5yfruun0Uzhzsa7z-jISv/s1271/331409689_3465782367079571_1980786221429218859_n.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1184" data-original-width="1271" height="373" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjaMoVodnmWZ_2DZD3Ygju5OVBVZCjSN-76RjGvLnMtr9ilDCo0yDVgTmGxIbUuNm5O9oBt6e0lb6aAF5BKLIgk5Aa1Fljd3H4Ud-W0umQYXFtKiDZMerIvYoV9Qk96rRJuAmF7JZM8NAYtvT5Ai-LiC_tjB8Wnx6wB10b5yfruun0Uzhzsa7z-jISv/w400-h373/331409689_3465782367079571_1980786221429218859_n.jpg" width="400" /></a></div><br /><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgFXrjkzMU_3Pf5hGPU6E7y4y7f5Xe2rDnsw3XIWdlyJ3Z7bG_YpZkM3nJvtAWw54TfLUMC0PSzkgybYdMLkHMVZYjTHsulDeEcbDB-Oj7nQh4DzPvbTZ9LwFfMnTCvHRz57yNwOzc1XMNxxmmToX3JJwYXa1m4CyZg3bZsBl6ef7xIwtTVm5QWiGwE/s1214/330117592_1684783578607204_3942364763883369517_n.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1184" data-original-width="1214" height="390" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgFXrjkzMU_3Pf5hGPU6E7y4y7f5Xe2rDnsw3XIWdlyJ3Z7bG_YpZkM3nJvtAWw54TfLUMC0PSzkgybYdMLkHMVZYjTHsulDeEcbDB-Oj7nQh4DzPvbTZ9LwFfMnTCvHRz57yNwOzc1XMNxxmmToX3JJwYXa1m4CyZg3bZsBl6ef7xIwtTVm5QWiGwE/w400-h390/330117592_1684783578607204_3942364763883369517_n.jpg" width="400" /></a></div><p></p><div class="separator" style="clear: both; text-align: center;"><br /></div><br /><div class="separator" style="clear: both; text-align: center;"><br /></div>這是請松本先生製作的單眼用天頂對角鏡,光學效能不錯,不過光路較長,還好 CFF 160 有留很長的 backfocus,因此對焦沒問題。可以開始享受正像的感覺了... 但這次先沒用 ^^"<div><p><br /></p><p>位在大犬上方,其實算在麒麟座範圍內,別名海鷗星雲的廣大 H II 區夾雜各種發射星雲、反射星雲、暗星雲、星團... 是個挖寶的好地方。當電子星圖走到南邊,不免常常看見編號 "GUM" 與 "RCW" 的目標,編號很陌生,不過目標大家都很熟悉,舉前面幾個為例: GUM 2 (RCW 1) 代表的就是整隻海鷗,GUM 1 (RCW 2) 則是海鷗頭,GUM 3 位在南邊翅膀最末端,沒有對應的 RCW 編號;GUM 4 (RCW 5) 是雷神索爾的頭盔。這次要仔細看的是 GUM 1 與 3,為了好說明擅自截了 SIMBAD 裡面的圖:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgy3Iqe_Or2_MrgRAn8gVyLIWSlQJgiPIcBCU5n9Yg8SYpnaqbImhalvYcSqvf80O9VW5-s0aSlDWqvEUPyUJDBcFbRKeX_5d9I3GK7k9f8FwAzXQ3kVZVDDfYQo17M4u3PEJ86drBa841THQbFr_ElVBNuraZa3VPl8yCcPPDBOnrRuokCLKc9MnAc/s1289/seagull.png" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1115" data-original-width="1289" height="346" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgy3Iqe_Or2_MrgRAn8gVyLIWSlQJgiPIcBCU5n9Yg8SYpnaqbImhalvYcSqvf80O9VW5-s0aSlDWqvEUPyUJDBcFbRKeX_5d9I3GK7k9f8FwAzXQ3kVZVDDfYQo17M4u3PEJ86drBa841THQbFr_ElVBNuraZa3VPl8yCcPPDBOnrRuokCLKc9MnAc/w400-h346/seagull.png" width="400" /></a></div><br /><p><br /></p><p>平地屋頂看 GUM 3 非常淡:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhMNtplGyXYE55ZUzaUjVGe0yJlf2eOj-B_YVBdX97guwD2D-p0TU_zyzcvMvOi1sYhe_ndLYGh8mZ6b0Y9H13Vd6mKw14yilAaYEGBEKOTfOmsOanM4S5I23jF7ekUlaHjhseGLDmugMB8hAY5ZOQOkjH11T0ophDqLYcs9RiGA1gMvEhhfPT6JpZQ/s2079/IMG_5071.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2079" data-original-width="2079" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhMNtplGyXYE55ZUzaUjVGe0yJlf2eOj-B_YVBdX97guwD2D-p0TU_zyzcvMvOi1sYhe_ndLYGh8mZ6b0Y9H13Vd6mKw14yilAaYEGBEKOTfOmsOanM4S5I23jF7ekUlaHjhseGLDmugMB8hAY5ZOQOkjH11T0ophDqLYcs9RiGA1gMvEhhfPT6JpZQ/w400-h400/IMG_5071.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Gum 3 nebula (CFF 160 f/6.5; 10mm Ethos for 104X; O III filter)</td></tr></tbody></table><br /><p>我用 17mm (61X) + UHC 效果不佳,6mm (173X) + O III 則完全看不到,最後是用 10mm (104X) + O III 畫圖的。星雲的西北側是一塊暗星雲,對比出此側較為明顯;東南側的雲氣則漸漸延伸、然後淡去,很難認出較為明確的雲氣邊界。貼一張從 SIMBAD 剪下來 DSS 的相片對照:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjROtpi3J9U7_Hte2lfJCZkP7z9I1K7duylDG568igLwCRBcv2UUpsg4eVa2DlzAWhKsgnMTVxgIQDYW2B1KAY7rUmapyowW6i8F_YwzhViDE-pqOeMQ0BWFiZs_E8ZgXmmWWOetai-yjUXhAkPRx6ponAOiqGr3rOB1uV4rTnNPg11msZw7ux5OcUQ/s1307/%E6%9C%AA%E5%91%BD%E5%90%8D1.png" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1071" data-original-width="1307" height="328" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjROtpi3J9U7_Hte2lfJCZkP7z9I1K7duylDG568igLwCRBcv2UUpsg4eVa2DlzAWhKsgnMTVxgIQDYW2B1KAY7rUmapyowW6i8F_YwzhViDE-pqOeMQ0BWFiZs_E8ZgXmmWWOetai-yjUXhAkPRx6ponAOiqGr3rOB1uV4rTnNPg11msZw7ux5OcUQ/w400-h328/%E6%9C%AA%E5%91%BD%E5%90%8D1.png" width="400" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><br /></div><p><br /></p><p>畫完 GUM 3 後換低倍目鏡觀賞整隻海鷗會覺得 "真是海鷗啊!!" 的強烈感覺,不過若要完整的畫下此美景可能要有個 2~3 小時吧? 還是算了,先把海鷗頭畫下就好:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg_1DxDmPiezBpeaFW1G3trdIoWNrWf9KnY77CZ4FBAtGace5U6bA7YgGL1COjhGljljrys31J8pRVfrCyBF36CnqkGFJhFr8NmumxKHK1OoC9aL_mnNd0Oyv4PXSIT7zBbWqLjOzc5cEVrYCuu-FPIyou4n3gJEMnz39265aEQG8TTs8OZQynu6S2z/s2302/IMG_5072.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2302" data-original-width="2302" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg_1DxDmPiezBpeaFW1G3trdIoWNrWf9KnY77CZ4FBAtGace5U6bA7YgGL1COjhGljljrys31J8pRVfrCyBF36CnqkGFJhFr8NmumxKHK1OoC9aL_mnNd0Oyv4PXSIT7zBbWqLjOzc5cEVrYCuu-FPIyou4n3gJEMnz39265aEQG8TTs8OZQynu6S2z/w400-h400/IMG_5072.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Gum 1 nebula (CFF 160 f/6.5; 10mm Ethos for 104X; O III filter)<br /></td></tr></tbody></table><p><br /></p><p>相較 Gum 3,這顆海鷗頭 Gum 1 亮多了;重點當然是星雲中間那條暗星雲,雖然看起來比天文相片裡的肥一些,但還算清楚。這個也是用 10mm (104X) + O III 畫圖的,果然 1.6 mm 的出瞳徑目前還蠻適合我的 DSO 觀察。同樣貼一張從 SIMBAD 剪下來 DSS 的相片對照,相片都有左右反向處理過:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhjyyvM4v9USrYQsaB6DeQfpgDg7KnPzRgwWWy-rFxGhlYcgcbC6XZDYpte5l8c7TTjpx9uJ0gowrc9-HI1HVJKWHPdiyfUslJNbcP29lfRbxBRfJ1aF0IC34AkRxagkIKOyIs5NuyUHC9GniLGbdQL3E1TDb5uI9_mQua_R0Y96GK20OgPfbcNjsB-/s1181/%E6%9C%AA%E5%91%BD%E5%90%8D2.png" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1144" data-original-width="1181" height="388" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhjyyvM4v9USrYQsaB6DeQfpgDg7KnPzRgwWWy-rFxGhlYcgcbC6XZDYpte5l8c7TTjpx9uJ0gowrc9-HI1HVJKWHPdiyfUslJNbcP29lfRbxBRfJ1aF0IC34AkRxagkIKOyIs5NuyUHC9GniLGbdQL3E1TDb5uI9_mQua_R0Y96GK20OgPfbcNjsB-/w400-h388/%E6%9C%AA%E5%91%BD%E5%90%8D2.png" width="400" /></a></div><br /><p><br /></p><p>接下來是三組星系,躺在我的 "待看清單" 很久很久,都忘記當時列進清單的原因了。首先是位在六分儀座的 NGC 3044,小小的六分儀座夾在獅子跟長蛇兩隻巨獸間,尋星的話從 獅子 Alpha 星 (Regulus) 或長蛇 Alpha 星 (Alphard) 出發都可以,因為差不多就在這兩顆星的中間:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhgB77yzB0C7xoyMgO_NBxxSztxSWgl3Wly2oqDpmDPKlT69bVO_RcGYNyn8fE9RqFNst4JfvSmQTiJErR6Ux12--IZNPpvo90um6QBuY16pAWtbnqyG_Az-7s3pXPNaJx83h8x9m65VDNMgSyl4yAfRSUG5FbQVnXyaw-N-6jGT9t9ian-SpsKM-ex/s1855/IMG_5076.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1855" data-original-width="1855" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhgB77yzB0C7xoyMgO_NBxxSztxSWgl3Wly2oqDpmDPKlT69bVO_RcGYNyn8fE9RqFNst4JfvSmQTiJErR6Ux12--IZNPpvo90um6QBuY16pAWtbnqyG_Az-7s3pXPNaJx83h8x9m65VDNMgSyl4yAfRSUG5FbQVnXyaw-N-6jGT9t9ian-SpsKM-ex/w400-h400/IMG_5076.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 3044 (CFF 160 f/6.5; 4.7mm Ethos for 221X)</td></tr></tbody></table><br /><p><br /></p><p>差點槓龜... NGC 3044 視亮度 +11.91 (i:12.0 / r: 12.2),距離我們 7 千萬光年遠,外觀分類是棒旋星系的 SBc,平地屋頂我只能用側視法持續看見,正視的話時有時無,其實也只有核心比較清楚一些些,兩端頭尾很勉強的一點點,判斷得出是橢圓形,對照相片長軸的方向也對,目視看起來當然沒相片裡的這麼長。也貼一張 DSS 的相片比對一下:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh3yn41HPSnivnfNzgQGj5PyWWlVjWdt10djRn5EQXjLjaHYuHnfGqd5SgJu19490_BehSIeu-Qp6wRUdI_smRVetcflfwph6ET147qFSa-xqH7lmEdym0O79fvGzaG0qL3wYfhFSES_HF5Ebd-6wJDOvHthHsgry2bLvxSjwZWnW9ZmUo042adAYdm/s800/ngc3044-dss2r-800.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="800" data-original-width="800" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh3yn41HPSnivnfNzgQGj5PyWWlVjWdt10djRn5EQXjLjaHYuHnfGqd5SgJu19490_BehSIeu-Qp6wRUdI_smRVetcflfwph6ET147qFSa-xqH7lmEdym0O79fvGzaG0qL3wYfhFSES_HF5Ebd-6wJDOvHthHsgry2bLvxSjwZWnW9ZmUo042adAYdm/w400-h400/ngc3044-dss2r-800.jpg" width="400" /></a></div><br /><p><br /></p><p>然後是頗有看頭的 NGC 4365,電子星圖的資料視星等: +9.52 等,SIMBAD 的資料 (i:9.9 / r: 10.4 ); 距離我們 7.5 千萬光年遠,外觀分類是橢圓星系的 E3:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEikw9Z8Vdcd25Q7YoLbKXXjVEVuxk6WKvkp2pVU6T0YsVwkY1jJEESG_1OaDUlRhX4PgGidC4Dmtg9W_BRFsQrN2PuAUOuyB6Nl1ZVekO-k6XJrJQPc1k_-vBoQJBEFGxsikL4ofqhv0N7-y47LRJrgXIUqegqz_Nc3jZiCUERA_bBqwWuoxhES4F4U/s1850/IMG_5073.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1850" data-original-width="1850" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEikw9Z8Vdcd25Q7YoLbKXXjVEVuxk6WKvkp2pVU6T0YsVwkY1jJEESG_1OaDUlRhX4PgGidC4Dmtg9W_BRFsQrN2PuAUOuyB6Nl1ZVekO-k6XJrJQPc1k_-vBoQJBEFGxsikL4ofqhv0N7-y47LRJrgXIUqegqz_Nc3jZiCUERA_bBqwWuoxhES4F4U/w400-h400/IMG_5073.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 4365 (CFF 160 f/6.5; 4.7mm Ethos for 221X)</td></tr></tbody></table><br /><p>尋星時用 17mm Ethos 就認到了,因為夠亮所以把倍率拉到 221X (4.7mm Ethos) 仔細看;有個很亮的核心,核心外的雲氣分布看起來有兩層的樣子,外層是很淡的一圈,有點像看行星狀星雲的感覺,同樣也貼張 DSS 的相片比對:</p><p><br /></p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEim4PQFRXY5X3Gws-_pEPjEZCXD5OvR_Y5-DWZsewM1Gy99DzRQuYbgwy2cAWhJ9Dek_Xh8IKjYGGi3yHRBvMELxNIxPVheyJPPZmCrwh42VSxmWV_Rm-_i0M5wD6kn4RsJ7DB5IEaDRaYEjDizncUDZUDq15q43162mqqt-P8FU0N7r99WQY4JdBc5/s800/ngc4365-dss2r-800.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="800" data-original-width="800" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEim4PQFRXY5X3Gws-_pEPjEZCXD5OvR_Y5-DWZsewM1Gy99DzRQuYbgwy2cAWhJ9Dek_Xh8IKjYGGi3yHRBvMELxNIxPVheyJPPZmCrwh42VSxmWV_Rm-_i0M5wD6kn4RsJ7DB5IEaDRaYEjDizncUDZUDq15q43162mqqt-P8FU0N7r99WQY4JdBc5/w400-h400/ngc4365-dss2r-800.jpg" width="400" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><br /></div><br /><p>下一組在之前看過的 NGC 4274 附近的 NGC 4278,結果收穫不只是 NGC 4278,還有一個視星等 +11.41 的 NGC 4245:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgVEJewu4fSNrJ4KbGIwORKqRXkKzTGxEPOysDrxtCtKmeWnd2_0Q28e0RyVRlLi7hq-RByLnkCQ5ztcOFkV-WwOCF81Qva68S8PvKuPoRPEBh7nn3iUXcin7CXW_gSv2CBhiTyte92fwcdiQ5_9x4Onrkmi8DSbU0-UJLXfyN6TVO5s7TOdYgNc-7O/s1796/IMG_5074.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1796" data-original-width="1796" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgVEJewu4fSNrJ4KbGIwORKqRXkKzTGxEPOysDrxtCtKmeWnd2_0Q28e0RyVRlLi7hq-RByLnkCQ5ztcOFkV-WwOCF81Qva68S8PvKuPoRPEBh7nn3iUXcin7CXW_gSv2CBhiTyte92fwcdiQ5_9x4Onrkmi8DSbU0-UJLXfyN6TVO5s7TOdYgNc-7O/w400-h400/IMG_5074.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 4245 (CFF 160 f/6.5; 4.7mm Ethos for 221X)<br /></td></tr></tbody></table><br /><p>SIMBAD 的資料 i: 11.0 / r: 11.4 ; 距離我們 5.1 千萬光年遠,外觀分類是透鏡星系的 S0-Aa,"通常" 透鏡星系都比較好認,可能雲氣比較集中的關係。我用 104X (10mm Ethos) 時就認出來了,最後用 221X (4.7mm Ethos) 做觀察及畫圖;核心清楚,看得出橢圓狀,長軸為 東南 -- 西北向。反而一開始拿來當定位點的 NGC 4274 (視星等 +10.34) 還比較難認,NGC 4274 定位好後往下瞄一眼就看到 NGC 4278 了 (視星等 +10.02),把三個星系用 104X (10mm Ethos) 視野放一起畫一張:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhdBD5LdT6rlGBBGmeUnQikVcB8bZx_iG1I0Iz4ahciqryhT4D9fJyEvB7BVfuAHpFNvwla_8leyb77MBQijLDTG6FFI9SEyEwH3uSDeJY5ryx4JeJ-ZndvoUWn3hoyrAcW8SOAllJfF1PtGbMxonOTr-r_rD2qI0HH60VNnjnvRceuStWl2VBgCu0V/s2942/IMG_5075.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2942" data-original-width="2496" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhdBD5LdT6rlGBBGmeUnQikVcB8bZx_iG1I0Iz4ahciqryhT4D9fJyEvB7BVfuAHpFNvwla_8leyb77MBQijLDTG6FFI9SEyEwH3uSDeJY5ryx4JeJ-ZndvoUWn3hoyrAcW8SOAllJfF1PtGbMxonOTr-r_rD2qI0HH60VNnjnvRceuStWl2VBgCu0V/w339-h400/IMG_5075.JPG" width="339" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 4278, NGC 4245, NGC 4274 (CFF 160 f/6.5; 10mm Ethos for 104X)</td></tr></tbody></table><br /><p>我自己覺得的目視難度由易到難依序: NGC 4278, NGC 4245, NGC 4274</p><p><br /></p><p>最近生活、工作事情多,筆記進度好慢,這篇冬末春初,還有秋末冬初的還沒寫呢! ^^"</p><p><br /></p></div>s00639http://www.blogger.com/profile/08382086616742866311noreply@blogger.com2tag:blogger.com,1999:blog-7477593545230087753.post-14836929290285699102023-03-15T17:51:00.004+08:002023-03-15T17:51:20.946+08:00大雪山林道快閃觀星<p>以我自己有限的外出觀星經驗裡,目視星空之美,合歡山的昆陽、鳶峰無疑排第一;大、小雪山莊可以排第二...... 不過這也已是幾年前的印象了;自從鳶峰掛上超大暗空公園的招牌後,不管是不是真暗空,肯定已不再是第一名,不過附近業者的客人變多了、政府開始賺點錢、暗空保護人士博得好名聲、學術單位順利完成專案... 要名有名要利得利,皆大歡喜,代價只有一片純樸自然星空,會有人覺得可惜嗎?</p><p><br /></p><p>美好星空只能從記憶裡回味。不過也因此太久沒往中部跑了,上次來就是大雪山林道接近國家公園大門附近,帶著 16 公分折射鏡,可惜看了一整晚雲;這次帶著同樣的鏡子來到同樣的地方,雖然剛開始一片霧霧的,但幸好天頂微開可以先校正好架台,入夜後不久整片天打開近 2 小時直到大月亮出來,重溫久違的高山美麗星空,算是一趟愉快的觀星快閃。</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj4fPBuabshDm8RNl7QkPwfoJ2_SoZ4DjHwvayMVXoute_XBRDoq7RnQbN9oiCUXYJ3v93ECxEljwFkQkUuZkzsAYEiMVptOuXrVmTtAteITJlFsmHfi7qwMxtbBUQrx9S3sZP932MVqKIiEJEm6I4VPBIvJTm9_eKlftbIf-KJVMpsOE66ps53M7_8/s897/7E543846-5697-4620-ABD0-3D59548E6F67-588-000003A9E5116883.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="897" data-original-width="897" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj4fPBuabshDm8RNl7QkPwfoJ2_SoZ4DjHwvayMVXoute_XBRDoq7RnQbN9oiCUXYJ3v93ECxEljwFkQkUuZkzsAYEiMVptOuXrVmTtAteITJlFsmHfi7qwMxtbBUQrx9S3sZP932MVqKIiEJEm6I4VPBIvJTm9_eKlftbIf-KJVMpsOE66ps53M7_8/w400-h400/7E543846-5697-4620-ABD0-3D59548E6F67-588-000003A9E5116883.jpg" width="400" /></a></div><br /><p><br /></p><p>還在山下便利商店門口喝咖啡時擬了一串觀察清單,大多是西天方向目標,結果上山後一看 -- 完全記錯方向,清單白擬了,其實西邊跟在宇老一樣擋在山壁後。19:30 過後雲霧逐漸消散,視野最好之處在大熊到獅子座附近,但先趁著長蛇的頭還沒完全隱沒在樹林間時找了一組相隔只有大約 11 arcmin 的星系組 NGC 2713 與 NGC 2716:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhKt4SyqfPkGur_2FzCspnV1ARPvKWKB23ocoe4I8tX4kpRee_7Gs_GqJXkoKCefnkunSXc1-0bm6m5ftd0Gb_sm-Y31ZncKSe5iX6V11_paK3QHiAoMfvB4S8YdRcqWX1x8nSgmbVhjdO9zadfYohVnaQVX--8v1BG4A21mLCyGZYH1el-OcvPz8Or/s2603/IMG_5233.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2603" data-original-width="2603" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhKt4SyqfPkGur_2FzCspnV1ARPvKWKB23ocoe4I8tX4kpRee_7Gs_GqJXkoKCefnkunSXc1-0bm6m5ftd0Gb_sm-Y31ZncKSe5iX6V11_paK3QHiAoMfvB4S8YdRcqWX1x8nSgmbVhjdO9zadfYohVnaQVX--8v1BG4A21mLCyGZYH1el-OcvPz8Or/w400-h400/IMG_5233.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 2713, NGC 2716 (CFF 160 APO, 6mm Ethos for 173X)</td></tr></tbody></table><br /><p>NGC 2713 視亮度 +11.74 (i:11.4 / r: 11.9),距離我們 2.4 億光年 (也有說是 1.8 億光年) 遠;NGC 2716 視亮度 +12.2 (i:11.6 / r: 12.0),距離近一點 1.7 億光年遠;不管 +11.74 還是 +12.2 在平地屋頂都是相當困難的星系目標,不過在高山上一眼就抓到了,SQM 顯示當時夜空有到 20.68。</p><p><br /></p><p>前面的亮度與距離等資料都是參考電子星圖 skysafari 的,這次多查了幾個網路資料源發現 "距離" 部分各資料源都有差異,而且我又看不懂 NASA/IPAC 資料庫 (NED) 的距離表示方式...... 我只看得懂 "多少多少光年" 啦,因此 "距離" 部分微微參考就好。亮度部分表示方式很多,有表面亮度、顯示亮度、視覺亮度... 然後亮度又有用星等當單位的也有用照明度當單位... 然後天體目標尤其有些面積的亮度分布也不可能 "平均" (所以我認為最沒參考價值的就是所謂的 "表面亮度" surface brightness),因此還是用 Skysafari 的資料再加上從 SIMBAD 查來的光譜資料,列出像: i (黃色) 660~860 nm、r (中綠) 540~720 為主,有些還會有 V (深綠) 520~580,R (淺綠) 500~800 等目視可見光譜的亮度資料當目視愛好者挑戰時的參考。</p><p><br /></p><p>NGC 2713 是畫面右邊那個,外觀分類是 SBab 的棒旋星系,天文相片裡最引人注目的是北側的一條旋臂,不過時間有點趕 (快被樹梢遮住了),來不及把倍率拉上去檢視,有點可惜。左邊那個 NGC 2716 的外觀分類是透鏡星系的 S0-Aa,還好是亮度比較集中的透鏡星系,不然可能也沒這麼容易辨識。</p><p><br /></p><p><br /></p><p>長蛇前半身看沒多久就隱入樹林了,只好乖乖的回到甜蜜空區;有一組我覺得也蠻有趣的三連星系組... 其實這附近星系一大堆,鏡子夠大隻的話應該可以找到超多視覺上的星系 "組"。位在夾在大熊與獅子之間的小獅座,NGC 2964、NGC 2968、NGC 2970:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhy8qLhskuTpcs-tRLsA8b96CNA-VbF5CF8PxF3F2fbCDRA0SLpg2Yd3oMFw4Hqly8IaXJC9OfEQ6TU4xl4574XCqr0fZnCKL4qbvPNXWHM6n06CXunVaOkJWiAZN3rzMbwSGrvUyP5CVZWXOtMb1xeeE_0S_d9KP9k3SXvSbPvGGJkyXabX7FlvSeI/s1818/IMG_5232.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1818" data-original-width="1818" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhy8qLhskuTpcs-tRLsA8b96CNA-VbF5CF8PxF3F2fbCDRA0SLpg2Yd3oMFw4Hqly8IaXJC9OfEQ6TU4xl4574XCqr0fZnCKL4qbvPNXWHM6n06CXunVaOkJWiAZN3rzMbwSGrvUyP5CVZWXOtMb1xeeE_0S_d9KP9k3SXvSbPvGGJkyXabX7FlvSeI/w400-h400/IMG_5232.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 2964, NGC 2968, ?? NGC 2970 (CFF 160 APO, 6mm Ethos for 173X)<br /></td></tr></tbody></table><br /><p>最明顯的當然是 NGC 2964,+11.29 (i:11.2 / r: 11.6),距離 6 千 7 百萬光年遠,外觀分類為螺旋星系的 SAbc,這在高山上完全沒問題,看起來面積還頗大,我覺得這顆頗有潛力可以像 M66 一樣來認旋臂。往東北向移一點可以看到暗很多的 NGC 2968,雖然查到的資料好像沒差很多,但我覺得亮度差異頗有感,+11.6 (i: 11.3 / r: 11.9),距離 7 千 2 百萬光年遠,外觀分類也是螺旋星系的 SAa,看到的面積小很多,可能只看到靠核心的部分,因為天文相片看起來外面還包著一大片雲氣,而且很明顯跟再往東北向靠過去的 NGC 2970 有互相連結、拉扯的痕跡。NGC 2970 的亮度是 +13.64 (i: 13.1 / r: 13.4),距離 7 千 4 百萬光年遠,外觀分類為橢圓星系的 E3;可能因為視面積小,加上外觀又是 光 比較集中的橢圓星系,雖然資料上視星等亮度 +13.64 等,不過我覺得看得見呀! 至少以 averted vision 都可以持續看見,雖然認不出任何細節,不過我把位置畫下來後與天文相片比對完全一致,所以我覺得算是有看到啦。</p><p><br /></p><p>還有一 "組" 星系是位在感覺應該算小獅座卻被歸在豺狼座 (Lynx) 的 NGC 2832 與 NGC 2831,其實如果鏡子夠大隻這邊應該可以撈個 2 位數多的星系,因為這邊是 Abell 779 星系群的勢力範圍。</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh4UZKOLOPE23_uk3NaC_Ja7l49ZVMWtPMRysCAX2gsZy4-4qfRhWEymYfeixQ1mBsCTBHL_Pz-Omp6ZokLBTYt4snAo83Z-QOnyZ0SmFU5F4Bvc4SxsZa1D5VEErxSEhs_jqSSKnajB_YMuldS47TdAww77t6ROIU6Mcx5JOoOVbuvVEifpwPxIotg/s1818/IMG_5230.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1818" data-original-width="1818" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh4UZKOLOPE23_uk3NaC_Ja7l49ZVMWtPMRysCAX2gsZy4-4qfRhWEymYfeixQ1mBsCTBHL_Pz-Omp6ZokLBTYt4snAo83Z-QOnyZ0SmFU5F4Bvc4SxsZa1D5VEErxSEhs_jqSSKnajB_YMuldS47TdAww77t6ROIU6Mcx5JOoOVbuvVEifpwPxIotg/w400-h400/IMG_5230.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 2832, NGC 2831 (CFF 160 f/6.5; 4.7mm for 221X)</td></tr></tbody></table><br /><p><br /></p><p>NGC 2832 亮度: +11.76 (i:11.5 / r: 11.9),距離 3.3 億光年遠,外觀分類為橢圓星系的 E3,高山上要認出來並不難;我在找它時完全沒有意會到這裏有星系群,只是在換目鏡時一直發現其上(西)方好像有另一個比較暗的 "核心",當時就在猜是不是另一個星系啊? 把電子星圖拉大看以後才發現原來這邊有這麼多星系。NGC 2831,小小暗暗的位在上方,亮度: +13.31 (i:12.8 / r: 13.3),距離 4.43 億光年遠,外觀分類同樣是橢圓星系的 E3;除了它是 光 比較集中的橢圓星系外,可能 i 光譜亮度有到 +12.8 因此我才看得到,但另一個超過 14 等的 NGC 2830 就沒辦法了,16 公分口徑完全無機會。</p><p><br /></p><p><br /></p><p>除了這三組以外,還有兩個算頗為明亮的透鏡星系,一個是也位在小獅座的 NGC 2859:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhiKul9Kx8hKkVwvTO5REGzEh5_6OqoDNBEGzeav_XmYOb3SNsYMoQXjxzt-kKH8aHdEg6_ePiwU6ox4Bp1wwdRjRMQ8Loo_i6nzwpFU5E62sT2gx-YyFBGNFXo2l_vNzWX31SgrggS9uLmiPmDtIpIVGkTyUcOEUIaFGHRm5UTc01mCZSJizvp4XGx/s2768/IMG_5231.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2768" data-original-width="2768" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhiKul9Kx8hKkVwvTO5REGzEh5_6OqoDNBEGzeav_XmYOb3SNsYMoQXjxzt-kKH8aHdEg6_ePiwU6ox4Bp1wwdRjRMQ8Loo_i6nzwpFU5E62sT2gx-YyFBGNFXo2l_vNzWX31SgrggS9uLmiPmDtIpIVGkTyUcOEUIaFGHRm5UTc01mCZSJizvp4XGx/w400-h400/IMG_5231.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 2859 (CFF 160 F/6.5; 6mm Ethos for 173X)</td></tr></tbody></table><br /><p>+10.89 (i:10.6 / r: 11),距離 8 千 4 百萬光年遠,外觀分類為透鏡星系的 S0-Aa;可以說它又大又亮嗎? 距離這麼遠還有 +10.9 等亮,如果靠近一點那還得了? 其實天文相片裡的這個星系有很多細節可找,而且看起來頗為驚人。比如說核心南北向有條棒棒 (bar),而且這條棒棒的兩端還有像行星狀星雲類似的 亮端點,除此之外星系外圍有一圈分離的環狀旋臂雲氣... 這些時都沒注意到,都是事前資料準備錯誤啦,可惜可惜。</p><p><br /></p><p>另外一個也是透鏡星系的 NGC 2681 位置算在大熊座:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi5rBp5lyuxXwxm9P6Ei6h2F9u67zW23_dbN80kggVs88m-3VEw1bYWdaLq4nxCJ52A61Mmgcs1NbtWD4USvu17VVe9d8CAzi3AygklZcsI15O5yx2l4WtqIeheQi19mE-p-qM0dIrrPl_eEg1CueVgrFRI8erYuBjFrgEVL_MLnbClILUtO9mKrr9n/s2632/IMG_5228.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2632" data-original-width="2632" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi5rBp5lyuxXwxm9P6Ei6h2F9u67zW23_dbN80kggVs88m-3VEw1bYWdaLq4nxCJ52A61Mmgcs1NbtWD4USvu17VVe9d8CAzi3AygklZcsI15O5yx2l4WtqIeheQi19mE-p-qM0dIrrPl_eEg1CueVgrFRI8erYuBjFrgEVL_MLnbClILUtO9mKrr9n/w400-h400/IMG_5228.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 2681 (CFF 160 F/6.5; 4.7mm Ethos for 221X)</td></tr></tbody></table><br /><p><br /></p><p>這顆是當晚看過最亮的一個了,+10.3 (i:11.2 / r: 11 / V: 10.3),距離 5 千 6 百萬光年遠,外觀分類同樣為透鏡星系的 S0-Aa。我最喜歡的部分呢,是這邊有好多亮亮暗暗不一的前景星,盯著這種視野,帶著景深立體效果的感覺就浮上來了。</p><p><br /></p><p>最後還有一個位在巨蟹座,補強的行星狀星雲 Abell 30:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEixHDdbwNKwi9RvdA-6arHUoglixYekc-Vi-ABXjXYRlNpI6vUIXmrtcGmi6fSBesU9LT7o4IE2eQJ1uVT_MksZBHIHX5e4xMGLH8A86UtTsLTj7zU4UMSXsy7ew2q-zDpjDFBac55gXMDqqsZVadlIR49XHT9HHlpM-HAHRz6yMG-TykEmA8Nvbk6T/s1818/IMG_5234.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1818" data-original-width="1818" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEixHDdbwNKwi9RvdA-6arHUoglixYekc-Vi-ABXjXYRlNpI6vUIXmrtcGmi6fSBesU9LT7o4IE2eQJ1uVT_MksZBHIHX5e4xMGLH8A86UtTsLTj7zU4UMSXsy7ew2q-zDpjDFBac55gXMDqqsZVadlIR49XHT9HHlpM-HAHRz6yMG-TykEmA8Nvbk6T/w400-h400/IMG_5234.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Abell 30 (CFF160 F/6.5; 3.7mm Ethos for 280X, without filter)</td></tr></tbody></table><br /><p>也查過其亮度資料 +13 (i: 14.9; R: 13.5; V: 14.3; r: 15.2),距離我們 3200 光年遠;而且這次我反覆測試後覺得不用濾鏡比較清楚,中央亮,但不知道是不是星點,外環大致看得出是圓的,東西兩側稍微亮一點點。這次看得相當肯定,前陣子在關西屋頂有有畫過,不過當時不是很有信心:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgQ5eQQPSfARNmqYaW9vecF9z8X93T_CqXxhGWmHCdfLXzh7ZjI4Pkk_BG0Rl62AuDijctXDJtmlWnCysRzTEUMkdwADl49ZWM2BJJvlGO6t14h6f3zKWzEnrHKd2f-ooZoq0upxKAfZjP2B8oKEJaBYQPw2q31OH25X9MapxmtsfHyWdhjCAGeDi6s/s2527/IMG_5124.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2527" data-original-width="2527" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgQ5eQQPSfARNmqYaW9vecF9z8X93T_CqXxhGWmHCdfLXzh7ZjI4Pkk_BG0Rl62AuDijctXDJtmlWnCysRzTEUMkdwADl49ZWM2BJJvlGO6t14h6f3zKWzEnrHKd2f-ooZoq0upxKAfZjP2B8oKEJaBYQPw2q31OH25X9MapxmtsfHyWdhjCAGeDi6s/w400-h400/IMG_5124.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Abell 30 (CFF 160 F/6.5; 6mm Ethos for 173X; UHC filter)</td></tr></tbody></table><br /><p>畫得不好,肯定沒這麼亮,大雪山那次畫得比較貼近實際視感。</p><p><br /></p>s00639http://www.blogger.com/profile/08382086616742866311noreply@blogger.com2tag:blogger.com,1999:blog-7477593545230087753.post-52848556206079995322023-01-10T16:35:00.002+08:002023-01-10T16:35:21.687+08:00只看完半圈的 2022 火星季<p>大約每 2 年一次的火星接近,一直是我最期待的天文觀察事件之一。每次火星季除了複習各個明顯的地形地貌以及雲霧等大氣特徵外,總還會認識更多新細節,一點一點累積對這顆鄰居星球的認識;而在盡力辨識的過程中對各種器材、配件的能力或限制也會有更多的體認。由於火星繞太陽軌道的偏心率還蠻大的,因此每次火星衝的距離都不同,當然看見的亮度與大小也不同,不過畢竟有個週期,每 15~17 年有一次大衝,上次大衝是 2018 年,視直徑最大時有 24.3",再上一次大衝是 2003 年的 25.1",下一次的大衝則是 2035 年的 24.5";從 2018 到 2035 每兩年的普通衝...... 今年 2022 剩 17", 下次是 2025 一月時的 14.5",然後是 2027 二月衝時最小的 13.8",就算要跟 2022 年差不多大小也要等到 8~9 年後的 2031 年衝的 16.8",真是讓人傷心。土星的球體大約 15" ~ 20",因為土星比較常看所以比較能想像,大概就是土星球體大小的範圍裡認細節。</p><p><br /></p><p>2022 年的火星觀察大部分都在市區,然後以 Mewlon-180c 為主,因為種種限制居然第一次沒辦法繞一圈看完,大約只有 CM 180 ~ 360 度這半圈而已。</p><p><br /></p><p>8 月畫過一次後下一次就是 9 月的最後一天了,中間看過的幾次都因為 seeing 太差而沒辦法素描:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiv1xWLZFc2Cwq_sYso1WnZEs4-GKQ8IhFBJ4nRcaRFiTa3CPdMKovRSP0QY8fp4XkZOETD5D1lX8n3Tf1zCJFSVlGotm-tb5bTU_CPqSoc53aoPQBKlIQ0LPfqqctD3PCk55_59-oU44Q1Nx3WU4myT5Jc9PeM6ALShaaB3uE4lClEW7XJwvk32fmb/s1889/IMG_4256.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1889" data-original-width="1887" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiv1xWLZFc2Cwq_sYso1WnZEs4-GKQ8IhFBJ4nRcaRFiTa3CPdMKovRSP0QY8fp4XkZOETD5D1lX8n3Tf1zCJFSVlGotm-tb5bTU_CPqSoc53aoPQBKlIQ0LPfqqctD3PCk55_59-oU44Q1Nx3WU4myT5Jc9PeM6ALShaaB3uE4lClEW7XJwvk32fmb/w400-h400/IMG_4256.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">dust over Hellas basin (CM: 312degree W) -- Mewlon 180c, Baader MKV + 2.6X GPC, 24mm LE for 234X; #12 yellow</td></tr></tbody></table><br /><p><br /></p><p>位在陰影邊的 Syrtis Major 還是最顯眼的目標,不過底下了 Hella Basin 就沒有之前清楚了,可能是當時南半球的沙塵壟罩影響對比,加上位在 P site 比較暗的原因;Hellas 旁邊倒是有塊相當亮的區域,這塊區域我猜是正壟罩在沙塵下,然後在太陽照射、反射下顯得特別顯眼。查一下資料: 2022-7-21 是火星北半球的冬至,一直到 2022-12-26 春分,正好是南半球由夏天變秋天時期,火星南半球的春天與夏天特別容易起沙塵暴,因此到年底沙塵暴的影響機率應該會越來越低才對。</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjY-QhZcyvtJ6KEPMihNYJiC2sfMtTbDVospjmbgcPaUZdfPqtfHVjc0IRmEZmO5s-W2UiwfxXBV3KSaD8g60XeaqZ8Ef7kIzxfXkvwHcItyrCMaRtQkbnce45V0c1g51gyiDVPgWFRusyFQEIolt_Z7bdS7QKWo8LXajI2ZpQZDe1LYA1yLacS77xZ/s1888/IMG_4325.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1888" data-original-width="1888" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjY-QhZcyvtJ6KEPMihNYJiC2sfMtTbDVospjmbgcPaUZdfPqtfHVjc0IRmEZmO5s-W2UiwfxXBV3KSaD8g60XeaqZ8Ef7kIzxfXkvwHcItyrCMaRtQkbnce45V0c1g51gyiDVPgWFRusyFQEIolt_Z7bdS7QKWo8LXajI2ZpQZDe1LYA1yLacS77xZ/w400-h400/IMG_4325.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">hard to identify Hellas basin (CM: 276 degree W) -- Mewlon 180c, Baader MKV + 2.6X GPC, 16mm Nagler for 351X; #12 yellow</td></tr></tbody></table><br /><p><br /></p><p>到 10 月初南半球的沙塵還是很嚴重,即便 Hellas Basin 移到比較中央也很難辨識出一向呈現出一個白亮大圓的模樣;Syrtis Major 連輪廓邊界都很清楚,暗部的深淺層次可以分辨,但連接著 Syrtis Major 的 Sinus Meridiani 幾乎都壟罩在沙塵下。這次的收穫應該是 "可以相當清楚的認出沙塵範圍" 吧?</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgBHqkiBzI5Fg6z4f6AFOWYkDyS-qL7cDd981VhvFN26K8Qx8-E6U73WnqZJIjWT8vWQVq3laqHL3BFWPgQvLc3mr_jjLeHrgHTJ0E-RTY22ch02OZ8f91fX86mcxyYbNqeCW9pAtq7lJC7f1paiTa-1Avxc-i7JNdM4dbJKQBT1-pCF3xxfClvV5Lt/s3023/IMG_4295.HEIC" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3023" data-original-width="3023" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgBHqkiBzI5Fg6z4f6AFOWYkDyS-qL7cDd981VhvFN26K8Qx8-E6U73WnqZJIjWT8vWQVq3laqHL3BFWPgQvLc3mr_jjLeHrgHTJ0E-RTY22ch02OZ8f91fX86mcxyYbNqeCW9pAtq7lJC7f1paiTa-1Avxc-i7JNdM4dbJKQBT1-pCF3xxfClvV5Lt/w400-h400/IMG_4295.HEIC" width="400" /></a></div><br /><p><br /></p><p>今年的主力是這組 16mm Nagler,目前市區器材的策略是多用巴羅鏡來精簡目鏡使用。</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgd2wWgXgV_x3Fd5TOaHseyJxbR5pziwIfRJVv5sLsJpviPv7fyRgeTe_ZZ5o2lKoG3lNTGpp5f6SqoSRWTOJ8rnxdJYSvcLjfw8phu64LOEpSYXaexGsuBOmo4TjR9o6TzDeu9O3ypxl-i6z0ty01VC6fgJc-bj1XddYemIomMIQOoUJAlrPufem_D/s3023/IMG_4568.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="3023" data-original-width="3023" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgd2wWgXgV_x3Fd5TOaHseyJxbR5pziwIfRJVv5sLsJpviPv7fyRgeTe_ZZ5o2lKoG3lNTGpp5f6SqoSRWTOJ8rnxdJYSvcLjfw8phu64LOEpSYXaexGsuBOmo4TjR9o6TzDeu9O3ypxl-i6z0ty01VC6fgJc-bj1XddYemIomMIQOoUJAlrPufem_D/w400-h400/IMG_4568.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Sinus Sabaeus, Sinus Meridiani (CM: 309 degree W) -- Mewlon 180c, Baader MKV + 2.6X GPC, 16mm Nagler for 351X; #12 yellow</td></tr></tbody></table><br /><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiRc7tmywtBpfQMzUIBygLZd24PQC602619C4al2dta8hcGXuSgZfTmUHgBN-KY0-bOmbcUtlVMoTCegcDF9TjsvDIMCKKlMLwuB9VdDeo8TllgIppVQbtzRkRSA3ZwVbeGdAdmNaHk0xQjffYpspkjlCs-DAMGoYF8mMpMidh9UlAF_bxsIWiAuciv/s1888/IMG_4566.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1888" data-original-width="1888" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiRc7tmywtBpfQMzUIBygLZd24PQC602619C4al2dta8hcGXuSgZfTmUHgBN-KY0-bOmbcUtlVMoTCegcDF9TjsvDIMCKKlMLwuB9VdDeo8TllgIppVQbtzRkRSA3ZwVbeGdAdmNaHk0xQjffYpspkjlCs-DAMGoYF8mMpMidh9UlAF_bxsIWiAuciv/w400-h400/IMG_4566.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Sinus Sabaeus, Sinus Meridiani (CM: 309 degree W) -- Mewlon 180c, Baader MKV + 2.6X GPC, 16mm Nagler for 351X; #12 yellow</td></tr></tbody></table><br /><p><br /></p><p>到 11 月初還是看得到片片沙塵的痕跡,很好辨識,因為被沙塵蓋住的 "黃" 會帶點乳白色糊糊的黃,跟旁邊沒被沙塵蓋住的黃色不同。除了沙塵以外最明顯的不同是壟罩在一大片白雲或霧之下的北極區開始露出一些南緣的地貌,因為通常在冬末初春之際這片被叫做 North Polar hood 的雲或霧開始消散。而南半球的地貌上熟悉的 Sinus Sabaeus 與 Sinus Meridiani 變主角,我區分得出來兩個海灣中間視覺反照率比較高的部分,Syrtis Major 很清楚,邊緣界線也很銳利。</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEigXCCXZ1y_uXma2rX6KTjbqs9fTJcmgrAkJgB5dNzREDC5CikJZO7Gw0lxcQQIe8saDVecJ8GxOgLZDr3C8lt8qjMXuvoG3DPXbMhkyQmN_0JbFx-qJr6JQMon2700tRWTQKJzMajQNZT23xXJ8jeNdjY9YL5j8lFFNl8LSiS3aVci-i6to2NLj1B4/s1889/IMG_4567.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1889" data-original-width="1887" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEigXCCXZ1y_uXma2rX6KTjbqs9fTJcmgrAkJgB5dNzREDC5CikJZO7Gw0lxcQQIe8saDVecJ8GxOgLZDr3C8lt8qjMXuvoG3DPXbMhkyQmN_0JbFx-qJr6JQMon2700tRWTQKJzMajQNZT23xXJ8jeNdjY9YL5j8lFFNl8LSiS3aVci-i6to2NLj1B4/w400-h400/IMG_4567.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">north ice cloud and south dust (CM: 290 degree W) -- Mewlon 180c, Baader MKV + 2.6X GPC, 16mm Nagler for 351X; #12 yellow</td></tr></tbody></table><br /><p><br /></p><p>中心還是在 CM 300 度周圍,這陣子 seeing 變得相當穩定,主角依舊是相當清晰的 Syrtis Major。南部的沙塵讓 Hellas basin 呈現很有趣的面貌,下半部在沙塵影響下顯得模糊不清,但上半部非常清晰,下半部的沙塵幾乎蔓延整片南端了。北半球則來看逐漸破碎的 North polar hood,因為仔細看可以發現裂開的痕跡,露出底下暗色的地貌。</p><p><br /></p><p>不常看火星的話,可能會搞混North polar hood 與真正北極的冰冠,可以試試看用 #23A 或 #25 的紅色濾鏡,或是 #58 的綠色濾鏡,因為 North polar hood 用紅色或綠色濾鏡會看不到,我試過,是真的。</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjFe_kdmHmhuVVo_91PcrACTOU9ZKALmVMecDSCA0DnnbCuYKgsLurwVlaZ6Y3rt1HeWw7F6snrdj9BtF7GjXQEAntxQSMcLLsnVt1Zim__7ZfWmL5hdx3PY9TscyLBFIjLBW1IxNYYwHM4--IYNXxCSa7pBHNoMk5ksd61KjSKjBHfJLvPwErbfMLX/s1979/IMG_4618.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1979" data-original-width="1822" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjFe_kdmHmhuVVo_91PcrACTOU9ZKALmVMecDSCA0DnnbCuYKgsLurwVlaZ6Y3rt1HeWw7F6snrdj9BtF7GjXQEAntxQSMcLLsnVt1Zim__7ZfWmL5hdx3PY9TscyLBFIjLBW1IxNYYwHM4--IYNXxCSa7pBHNoMk5ksd61KjSKjBHfJLvPwErbfMLX/w369-h400/IMG_4618.JPG" width="369" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Mare Tyrrhenum, Mare Cimmerium (CM: 255 degree W) -- Mewlon 180c, Baader MKV + 2.6X GPC, 16mm Nagler for 351X; #12 yellow</td></tr></tbody></table><br /><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjrLHqbvGkYoAyosTFLkQPxa_u5_8WCPqmHAo16emqPEY6PDtpQEA5P80mSp2LCK05T9D29JMX4cmQsGYOhb3heOxFgLj9FcVvO0Zv2QM1pwkPuPTBmuT9Hy9geBBYklbtjLMAeg9XA9VEQphFzie9utk1zVQfpF2K_wa5jSh2ivGXeBI_JSUqfG4dz/s1968/5E7F92AF-7F3D-4C7D-853C-3A6442BB83E5.jpeg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1968" data-original-width="1812" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjrLHqbvGkYoAyosTFLkQPxa_u5_8WCPqmHAo16emqPEY6PDtpQEA5P80mSp2LCK05T9D29JMX4cmQsGYOhb3heOxFgLj9FcVvO0Zv2QM1pwkPuPTBmuT9Hy9geBBYklbtjLMAeg9XA9VEQphFzie9utk1zVQfpF2K_wa5jSh2ivGXeBI_JSUqfG4dz/w369-h400/5E7F92AF-7F3D-4C7D-853C-3A6442BB83E5.jpeg" width="369" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Mare Tyrrhenum, Mare Cimmerium (CM: 255 degree W) -- Mewlon 180c, Baader MKV + 2.6X GPC, 16mm Nagler for 351X; #12 yellow</td></tr></tbody></table><br /><p><br /></p><p>如果以 Syrtis Major/Hellas Basin 為中,一側是前面提到的兩個海灣 Sinus Sabaeus 與 Sinus Meridiani,另一側就是兩個海 Mare Tyrrhenum 與 Mare Cimmerium 了,如果能清楚看出分隔兩個海的陸地的話我就覺得當天的觀測品質還算可以。有時 seeing 不佳,那就只能用時間來換取啦,連續看個 1 小時總會等到幾次 1~2 分鐘氣流穩定的黃金片刻,像這次我有認出 Mare Tyrrhenum 中間稍稍突起的地貌,對一下地圖發現這一小塊居然叫 Syrtis Minor 呢!! 另外在 Mare Cimmerium 中間也看得出淺淺突出的地貌,應該就是 Sinus Gomer,不過分不出來兩隻角。Hellas Basin 最底部這次看到一個小小極白的點,不知道是不是南極的冰冠?</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh-ujtiMBOWCSuYC6VfXuBtIreBc1gZVjeFmUf7TxW4aPb6fr97Ssu_bvU6Byfobsmd4VJukIfamTf3jMC-jeUUxfQBvbBFTUOIua1i4nv7Bmrv4xT67F8iTqno63sqmgx4a6TyXceL-7WBeUQdoT6vwhOorUBzXNXQpMsoXlBioYldCcvqkCjFcrqF/s1818/IMG_4646.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1818" data-original-width="1818" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh-ujtiMBOWCSuYC6VfXuBtIreBc1gZVjeFmUf7TxW4aPb6fr97Ssu_bvU6Byfobsmd4VJukIfamTf3jMC-jeUUxfQBvbBFTUOIua1i4nv7Bmrv4xT67F8iTqno63sqmgx4a6TyXceL-7WBeUQdoT6vwhOorUBzXNXQpMsoXlBioYldCcvqkCjFcrqF/w400-h400/IMG_4646.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Mare Sirenum, Mare Cimmerium (CM: 180 degree W) -- CFF 160 f/6.5, Tele Vue/Bino Vue, 2.4mm Vixen HR for 437X; #12 yellow</td></tr></tbody></table><br /><p><br /></p><p>這張已經是這次火星衝畫的最後一張,回關西用 16 公分折射鏡。沙塵似乎看不太到了,南半球以 Mare Sirenum 與 Mare Cimmerium 為主角,很多白雲,一塊一塊的;南半球夏天結束即將到秋分,是因為這個氣候轉變造成的多雲現象嗎? 因為前幾天在市區用 #80A 藍色濾鏡發現對 dark albedo 效果比 #12 黃色好很多,所以這次也以藍色為主來觀察,不過比較後發現並沒有,最後還是換回黃色濾鏡看。</p><p><br /></p><p>接著就是長長的一段烏雲密布日子,也遮掉了這次的火星衝,等 12 月底好天氣來臨時 seeing 又變得無藥可救的爛,怎麼樣都等不到那平靜的 1~2 分鐘。現在火星只剩 13.4",到一月底 10.8",看來這次的火星接近就只有這樣而已了。</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg98BjD9ORHfkTu9RMBFa2ayn_YFpVhRdZBwbpFGSfbBtzi9VTIc1Rm1z1WRHeLWUcSC5ttzDFiVRN-_TwP1fkvgn_0qwqVcED_TX1dwTS52d0Wa8DFAQAG00EFIibkeq6AgZr9Q35PVcOjwugMjfdgOnJTwYbocODtJLufqvm3TKxTPaQDTPWDMlTI/s1776/353ECF60-F0DA-40E1-B05E-38D312D5A324-6866-00001A4093429D07.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1184" data-original-width="1776" height="266" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg98BjD9ORHfkTu9RMBFa2ayn_YFpVhRdZBwbpFGSfbBtzi9VTIc1Rm1z1WRHeLWUcSC5ttzDFiVRN-_TwP1fkvgn_0qwqVcED_TX1dwTS52d0Wa8DFAQAG00EFIibkeq6AgZr9Q35PVcOjwugMjfdgOnJTwYbocODtJLufqvm3TKxTPaQDTPWDMlTI/w400-h266/353ECF60-F0DA-40E1-B05E-38D312D5A324-6866-00001A4093429D07.jpg" width="400" /></a></div><p><br /></p>s00639http://www.blogger.com/profile/08382086616742866311noreply@blogger.com0tag:blogger.com,1999:blog-7477593545230087753.post-7463369692301868122023-01-05T10:04:00.003+08:002023-01-09T15:32:09.659+08:00遲到半年的恆星自行記錄<p>年底整理好多東西,文件、檔案、衣櫥、書櫥、紙箱、零件...... 好像永遠整理不完,也終於要來處理去年七月紀錄的恆星自行現象了。</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhqoDsO33ACKW_9ZsZCcYRKxBwRD4A3J81XKPSuuGd_cjw4-ABXikN9FY4ersAfbcCE0vvga7K33b-VlowoJ5MIh68zycCc6aWZLkNiBX9T3wUOdd6EP3rhLXAiowsp0KKsY_UsazyLM3o05LfZ26FvataW2glvjXUIHwDczoRuM9RPHK2S_DYwVxmB/s1183/93D18B21-DD2C-4FB4-B78D-5C09C30A2271-36660-00001C77AA3F606E.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1183" data-original-width="1183" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhqoDsO33ACKW_9ZsZCcYRKxBwRD4A3J81XKPSuuGd_cjw4-ABXikN9FY4ersAfbcCE0vvga7K33b-VlowoJ5MIh68zycCc6aWZLkNiBX9T3wUOdd6EP3rhLXAiowsp0KKsY_UsazyLM3o05LfZ26FvataW2glvjXUIHwDczoRuM9RPHK2S_DYwVxmB/w400-h400/93D18B21-DD2C-4FB4-B78D-5C09C30A2271-36660-00001C77AA3F606E.jpg" width="400" /></a></div><br /><p>今年又換一隻鏡子拍,也就是因為這樣一直換鏡子,結果造成最後要比較結果時麻煩的要死。</p><p><br /></p><p>紀錄 61 Cyg 以及 Barnard's Star 這兩顆的自行記錄在網路上可以找到一大堆現成、漂亮且可讀性很高的相片還有動畫,似乎不用自己每年特別去拍一堆醜醜的相片;不過對我來說好像有些不同的意義,或是一個特別的儀式 -- 證明我仍喜歡這個嗜好? 證明我還健康的活著? 地球仍然規律的運動? 或者只是對自己宣告一下 -- 夏天來了!</p><p><br /></p><p>Cyg 61 還好,因為有一顆背景星可以做移動的參考,加上這組雙星又亮,因此不管怎麼亂拍都認得出來。底下是 2022 年用 2160 mm 焦長拍的,跟 2021 年用 900~1000 mm 拍的結果:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjbO2VsRxgYXh1j4NOHw6FGNPdGAWT709HIPo6q4ExQfeFvAlaKmeBv1paAQaohY7nPgexyh9YvHTtp9BeBT1rCRlfRG8iKb7DU01PBeLzijEYA4Ql5jTxMTKdLgmKZvwtgufd1T2bopk3AJLtHubRVPulHk_iLrSpB42fDVuFG4sw2soi62Irn6SNp/s1776/61cyg-Mewlon180-2022(rawfile).jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1184" data-original-width="1776" height="266" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjbO2VsRxgYXh1j4NOHw6FGNPdGAWT709HIPo6q4ExQfeFvAlaKmeBv1paAQaohY7nPgexyh9YvHTtp9BeBT1rCRlfRG8iKb7DU01PBeLzijEYA4Ql5jTxMTKdLgmKZvwtgufd1T2bopk3AJLtHubRVPulHk_iLrSpB42fDVuFG4sw2soi62Irn6SNp/w400-h266/61cyg-Mewlon180-2022(rawfile).jpg" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">61cyg (Mewlon 180, 2160mm f/12) -- YR2022-July</td></tr></tbody></table><br /><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjx4e1A7-Fq2yXaCHnl8miVRcbsWEnGN7_VZaDYTkEUbuuqT3HtJ7BC1H4v4Ud89QnjAFpoM3_vYgFpum0L97Mc1Lsvq4pqDSQ4R8YKNkBiwiZZ6zEiLl1zGepvQ33DcHEZ7fNV58SkrpPzyKkFkDSMRUhDp0fnsypzUdptZktpdZmO4Kucjo5EyddH/s1776/61cyg-TSA120-2021(rawfile).jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1184" data-original-width="1776" height="266" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjx4e1A7-Fq2yXaCHnl8miVRcbsWEnGN7_VZaDYTkEUbuuqT3HtJ7BC1H4v4Ud89QnjAFpoM3_vYgFpum0L97Mc1Lsvq4pqDSQ4R8YKNkBiwiZZ6zEiLl1zGepvQ33DcHEZ7fNV58SkrpPzyKkFkDSMRUhDp0fnsypzUdptZktpdZmO4Kucjo5EyddH/w400-h266/61cyg-TSA120-2021(rawfile).jpg" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">61cyg (TSA-120, 900mm f/7.5) -- YR2021-July</td></tr></tbody></table><br /><p><br /></p><p>我有稍微看一下一般天文常用的疊圖軟體像 DeepSkyStacker 或 RegiStar,不過後來想想我的目標這麼簡單微小,似乎也不用搞那麼正式,只要把目標周遭範圍大致取一樣大小,角度盡量拉齊,這樣的話電腦裡的小畫家好像就可以了。所以... 就純手工製作啦:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgY0EL1uM3Wh6PjV6VuDLZo0MJvSfFyiqtjGz0vbF7i-cVV0jX9eD-csIOvKop_VEY_GMgRfyUpLkQb9AKpcJcKa55AlNuP8kNCv8Y4FtgfxjeNIucsnP7dBaTEadHtz2YTLUrhc1py0VuNp3gto9n-FrVGv8pZUntbqpNzMh92v93idMEY1W0_M9oQ/s600/61cyg-Mewlon180-2022(rawfile)-%E6%8B%89%E7%9B%B4.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="473" data-original-width="600" height="315" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgY0EL1uM3Wh6PjV6VuDLZo0MJvSfFyiqtjGz0vbF7i-cVV0jX9eD-csIOvKop_VEY_GMgRfyUpLkQb9AKpcJcKa55AlNuP8kNCv8Y4FtgfxjeNIucsnP7dBaTEadHtz2YTLUrhc1py0VuNp3gto9n-FrVGv8pZUntbqpNzMh92v93idMEY1W0_M9oQ/w400-h315/61cyg-Mewlon180-2022(rawfile)-%E6%8B%89%E7%9B%B4.jpg" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">61cyg (Mewlon 180, 2160mm f/12) -- YR2022-July</td></tr></tbody></table><br /><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjkQ0M0YPBgT3WBYJZcBWdyrk7OrzebpCDcQ2hXARFlW171oj6eJkWF81_eoGhp0cnLrgmtSpaSWtY2ZLYLuEq5KkUdlc7tgh3u_V6093xqJ_CmUL77exNSvJJ5g0mcUFn4Ea-O3m94VC1Yvrh4w7l5YE5K4dNKJPkcVDwHYsbNJaLynZCzsAq0rtDG/s600/61cyg-TSA120-2021(rawfile)-%E6%8B%89%E7%9B%B4.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="472" data-original-width="600" height="315" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjkQ0M0YPBgT3WBYJZcBWdyrk7OrzebpCDcQ2hXARFlW171oj6eJkWF81_eoGhp0cnLrgmtSpaSWtY2ZLYLuEq5KkUdlc7tgh3u_V6093xqJ_CmUL77exNSvJJ5g0mcUFn4Ea-O3m94VC1Yvrh4w7l5YE5K4dNKJPkcVDwHYsbNJaLynZCzsAq0rtDG/w400-h315/61cyg-TSA120-2021(rawfile)-%E6%8B%89%E7%9B%B4.jpg" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">61cyg (TSA-120, 900mm f/7.5) -- YR2021-July</td></tr></tbody></table><br /><p><br /></p><p>我要寫一下我的白痴加工步驟,不然明年又忘了~</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhbj_zBxXax_cVBrOoOmZfm9WeIwc0Z5QBKZ0crHuvBMyu0TyhNTsrHVjO4R1T1vxemO-iQCUNOiiAfSNMTAuZN2DKqOUx9MXTv_1sU7dH2eE_N565_LScXQnfbjFalNsJuwpI49tlMzkMb2fnziwsXJKJRMpHX--rYbzbcBOTIRUxQA3H7Y2pZuF0Q/s1776/61cyg-%E8%AA%BF%E7%9B%B8%E7%89%87%E4%B8%80%E8%87%B4%E7%9A%84%E6%AD%A5%E9%A9%9F.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1184" data-original-width="1776" height="266" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhbj_zBxXax_cVBrOoOmZfm9WeIwc0Z5QBKZ0crHuvBMyu0TyhNTsrHVjO4R1T1vxemO-iQCUNOiiAfSNMTAuZN2DKqOUx9MXTv_1sU7dH2eE_N565_LScXQnfbjFalNsJuwpI49tlMzkMb2fnziwsXJKJRMpHX--rYbzbcBOTIRUxQA3H7Y2pZuF0Q/w400-h266/61cyg-%E8%AA%BF%E7%9B%B8%E7%89%87%E4%B8%80%E8%87%B4%E7%9A%84%E6%AD%A5%E9%A9%9F.jpg" width="400" /></a></div><br /><p><br /></p><p>Step-1,找兩顆星拉垂直或拉水平都可以的定位星,目的是讓相片的角度一致</p><p>Step-2,找定位邊界的上、下、左、右 星畫邊界,目的是讓相片範圍一致</p><p>Step-3,調像素一致,目的是讓每張相片顯示的大小一致</p><p><br /></p><p>依樣畫葫蘆,把其它年的調整完排一起看:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj4RlSF1769rj7j1WZ5A491N0Nb1wyG6KN5M59x_RbCgyfcKXNh8aJWUz-5ouZPUowogxmlhQBMcsSNcQKLaiQ0g1ybk3cYZyJyE6JR25OXXEtLTTPOOYSkaI4AcTSMNtTVo_U8LCyEuK6RXvaT19rNV5z5XI8ajloznFZhoBUZzS6JTyW_nr3w9NK9/s1842/61cyg-2017to2022-aligned.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1172" data-original-width="1842" height="408" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj4RlSF1769rj7j1WZ5A491N0Nb1wyG6KN5M59x_RbCgyfcKXNh8aJWUz-5ouZPUowogxmlhQBMcsSNcQKLaiQ0g1ybk3cYZyJyE6JR25OXXEtLTTPOOYSkaI4AcTSMNtTVo_U8LCyEuK6RXvaT19rNV5z5XI8ajloznFZhoBUZzS6JTyW_nr3w9NK9/w640-h408/61cyg-2017to2022-aligned.jpg" width="640" /></a></div><br /><p>這樣表達就夠清楚了,至少我可以接受啦。</p><p><br /></p><p>跟 61 Cyg不同,Barnard's Star 在茫茫星海中既不亮,也不好定位 ---- 雖然相片多調幾張後我能很快找到啦,但一開始如果拍攝像場角度不同還真是難辨識:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjl23P7BhNEsgPc8RFnJBv8o7Q14UNEfJEjL76QV9NOZNtKiYCFSTF8KOY4YAfptov7Namu4FhlsqmdXikjpiGYO1pMZlmiMIL52HgDNE_n58zJ3Op1jTdyEqcxOjwFvhE-nnQcxDyJsqn83cLiReqIPT9a9TyaGtZfJ5SkHzlTi0cDNb_-Y5wEP_Ap/s1776/BarnardStar-Mewlon180-2022(rawfile).jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1776" data-original-width="1184" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjl23P7BhNEsgPc8RFnJBv8o7Q14UNEfJEjL76QV9NOZNtKiYCFSTF8KOY4YAfptov7Namu4FhlsqmdXikjpiGYO1pMZlmiMIL52HgDNE_n58zJ3Op1jTdyEqcxOjwFvhE-nnQcxDyJsqn83cLiReqIPT9a9TyaGtZfJ5SkHzlTi0cDNb_-Y5wEP_Ap/w266-h400/BarnardStar-Mewlon180-2022(rawfile).jpg" width="266" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Barnard's Star (Mewlon 180, 2160mm f/12) -- YR2022-July</td></tr></tbody></table><br /><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjr7hMnmtES7zst3u9lLOcFIkZCv9IB-mJZnpkiEIH0YJCFRGGZBb6zhX9aj3Yb0GV59EZEe-1JOMiDbH5jZ6annDVA38GA12XC8xVQXMi2pAKbGBDS4oRNlNujfC--db3GLGs44Xse0nGyQyBHvtNYHIQfa5iotwNZjGIyvhUTdaiI-OXc9c6OMn_C/s1776/BarnardStar-TSA120-2021(rawfile).jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1184" data-original-width="1776" height="266" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjr7hMnmtES7zst3u9lLOcFIkZCv9IB-mJZnpkiEIH0YJCFRGGZBb6zhX9aj3Yb0GV59EZEe-1JOMiDbH5jZ6annDVA38GA12XC8xVQXMi2pAKbGBDS4oRNlNujfC--db3GLGs44Xse0nGyQyBHvtNYHIQfa5iotwNZjGIyvhUTdaiI-OXc9c6OMn_C/w400-h266/BarnardStar-TSA120-2021(rawfile).jpg" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Barnard's Star (TSA-120, 900mm f/7.5) -- YR2021-July</td></tr></tbody></table><br /><p><br /></p><p>比如上面這兩張原始拍的,要怎麼比對呢? 所以依照前面講的方法調整一下:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiJj34mvsM05fL_UFDXnRGuSunJhSFxneNQjML4tKUqKhGTFbborX-GIcqzYc0NYkpPbELJemfrQaUMPENj270WmptzSFlTL6B_IAgTWjGdko_7HLmAP1NNJBZZGazTJkwtFmdhqF_wt0OC7zXkoHP_bc3mUG2YqXas-GLVTpZdK3NtinGdPToGdC02/s1103/BarnardStar-Mewlon180-2022(rawfile)-%E6%8B%89%E9%95%B7.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1103" data-original-width="800" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiJj34mvsM05fL_UFDXnRGuSunJhSFxneNQjML4tKUqKhGTFbborX-GIcqzYc0NYkpPbELJemfrQaUMPENj270WmptzSFlTL6B_IAgTWjGdko_7HLmAP1NNJBZZGazTJkwtFmdhqF_wt0OC7zXkoHP_bc3mUG2YqXas-GLVTpZdK3NtinGdPToGdC02/w290-h400/BarnardStar-Mewlon180-2022(rawfile)-%E6%8B%89%E9%95%B7.jpg" width="290" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Barnard's Star (Mewlon 180, 2160mm f/12) -- YR2022-July</td></tr></tbody></table><br /><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEig9z-PRcSN7P-l2fHCCYwlCuYTJHQYKsakitUY5dNwx33j40kaIIKRrpI4hLTMdRkHy3F8a2FxahOtvo3XkBKMBvHrnpVE7yJDoOwsaDmuLP1fhb7dSkMW6LA47R5O8JasJtFHDMS0FMGC6GDNL1-5X9LN0F7Imafs-s8tOoKjQ6ySExjq40_zmqQw/s1212/BarnardStar-TSA120-2021(rawfile).jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1212" data-original-width="800" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEig9z-PRcSN7P-l2fHCCYwlCuYTJHQYKsakitUY5dNwx33j40kaIIKRrpI4hLTMdRkHy3F8a2FxahOtvo3XkBKMBvHrnpVE7yJDoOwsaDmuLP1fhb7dSkMW6LA47R5O8JasJtFHDMS0FMGC6GDNL1-5X9LN0F7Imafs-s8tOoKjQ6ySExjq40_zmqQw/w264-h400/BarnardStar-TSA120-2021(rawfile).jpg" width="264" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Barnard's Star (TSA-120, 900mm f/7.5) -- YR2021-July</td></tr></tbody></table><br /><p><br /></p><p>調整的步驟與定位星們如下:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgSGZ-R48NdHSAIYEmuLEPqfrhTTr5sVWGMw7HEOd_9Kaww-33JvFb02Cg8qeEoKyD_DOk0oS00paisLjxATSgGlqmMbBJMzuUMCH_RrwIFRe8orsPvXvlQsurAeYPcWHGwNkyHeQ_3IW_bXnSvSk6ab3T4fIX0ZVpel9HJCs0WChpXJQfa0UShEjtK/s1776/BarnardStar-%E8%AA%BF%E7%9B%B8%E7%89%87%E4%B8%80%E8%87%B4%E7%9A%84%E6%AD%A5%E9%A9%9F.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1184" data-original-width="1776" height="266" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgSGZ-R48NdHSAIYEmuLEPqfrhTTr5sVWGMw7HEOd_9Kaww-33JvFb02Cg8qeEoKyD_DOk0oS00paisLjxATSgGlqmMbBJMzuUMCH_RrwIFRe8orsPvXvlQsurAeYPcWHGwNkyHeQ_3IW_bXnSvSk6ab3T4fIX0ZVpel9HJCs0WChpXJQfa0UShEjtK/w400-h266/BarnardStar-%E8%AA%BF%E7%9B%B8%E7%89%87%E4%B8%80%E8%87%B4%E7%9A%84%E6%AD%A5%E9%A9%9F.jpg" width="400" /></a></div><br /><p>最後比較的結果:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgJJ4YfLmQ73Bzl8AOA2t96Bu85FVhzJhRAfqtkO2vbrst2ax8cjT-4hg0ZLU5kWPENZccGywOpl2dXZsZUHWF8F24AHp_XmGAChMxBPh0yfzuT2IubysNE6hnK_EbLyYAtP2S-zg7T-w3ltN_JG0Mb_l4UkJwjXEfCuX5qpLIdWtbfrSjvJQRi3C4G/s2570/BarnardStar-2017to2022-aligned.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2570" data-original-width="2434" height="640" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgJJ4YfLmQ73Bzl8AOA2t96Bu85FVhzJhRAfqtkO2vbrst2ax8cjT-4hg0ZLU5kWPENZccGywOpl2dXZsZUHWF8F24AHp_XmGAChMxBPh0yfzuT2IubysNE6hnK_EbLyYAtP2S-zg7T-w3ltN_JG0Mb_l4UkJwjXEfCuX5qpLIdWtbfrSjvJQRi3C4G/w606-h640/BarnardStar-2017to2022-aligned.jpg" width="606" /></a></div><br /><p><br /></p><p>找了兩顆參考星來比較,還算容易看出 Barnard's Star 的移動呢!</p><p><br /></p><p>終於完工啦... 在深冬。 ^^"</p>s00639http://www.blogger.com/profile/08382086616742866311noreply@blogger.com2tag:blogger.com,1999:blog-7477593545230087753.post-31441845452976173632023-01-02T17:44:00.004+08:002023-01-02T20:13:21.908+08:00義大利麵的一小塊以及其它目標觀察 — Sh2-240, NGC 2024, IC 1747, Sh2-188, NGC 604, M46<p>北部陰霾好久終於有幾天晴夜,本來打算補補錯過的火星衝,不過這幾天 seeing 實在糟到不行,看來這次的火星年只能停在這裡了,殘念呀。</p><p><br /></p><p>現在市區幾乎只用經緯儀,所以把 RST-135 拿回關西了,不過面對一堆重裝備不知道拿回來要幹嘛? 但看器材閒置著就不順眼,錢都花了當然要物盡其用,RST-135 規格書說負載 18 公斤,何不試試全負載不到 16 公斤的 CFF 160 ?</p><div class="separator" style="clear: both; text-align: center;"><br /></div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjv5hmgwVzN_fuxsTE8HgA-G5FSJIkQ_VDC-RNQT7pTFmmsOuISm8xX5Ld2Df6i6q5NMRelpRusWW5K05Tfg7JOjY1ArnRkFnH8B4ZYJHdgJo_TZMZdoh4EXB4deTZIMr3_9IJ7XUaABCOPk2Ng5MuA25knmRvicKaxnx0Pg2_9N9-bLZ_9VRKuta49/s2100/IMG_0393.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1574" data-original-width="2100" height="300" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjv5hmgwVzN_fuxsTE8HgA-G5FSJIkQ_VDC-RNQT7pTFmmsOuISm8xX5Ld2Df6i6q5NMRelpRusWW5K05Tfg7JOjY1ArnRkFnH8B4ZYJHdgJo_TZMZdoh4EXB4deTZIMr3_9IJ7XUaABCOPk2Ng5MuA25knmRvicKaxnx0Pg2_9N9-bLZ_9VRKuta49/w400-h300/IMG_0393.HEIC" width="400" /></a></div><br /><p>依過去經驗,小架台架大鏡子要換個長夾具先,所以挪 RST-300 的用,然後再補一片,這次改用 Losmandy 原廠的長夾具:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjAg2TuDOLAJ0vz4KHwbvEbJQp9KbWo-cinVhu_mpF9KLPlO3oIwwyM5_LfIIKqgyTa84sPN-PN4WGZ5OfvCr2aS6D1LEu4qbsyO5XNBuwWDtzxQn_cGwvg8_U_LupzNmOpN7eBqZFU3u18Fo4WOUCtp_gkHXkvH7sE737oFoUVCQ214kqIKAxxxWql/s4032/IMG_4677.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3024" data-original-width="4032" height="300" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjAg2TuDOLAJ0vz4KHwbvEbJQp9KbWo-cinVhu_mpF9KLPlO3oIwwyM5_LfIIKqgyTa84sPN-PN4WGZ5OfvCr2aS6D1LEu4qbsyO5XNBuwWDtzxQn_cGwvg8_U_LupzNmOpN7eBqZFU3u18Fo4WOUCtp_gkHXkvH7sE737oFoUVCQ214kqIKAxxxWql/w400-h300/IMG_4677.HEIC" width="400" /></a></div><br /><p>有刻度、還有水平氣泡,夾面接觸面積又大,看起來真是好東西,以前怎麼沒注意過呢?</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjyhuUgMFwH3AlaC62qa8Yl6ZwT-2nYoiWSmWDkx6TUQI3HXngmHRkZYg7g7ahrNtYInGfuQ_JJe7nC-sQqyy_Zs2iKWb47cIyMBt0CEyIudGEtKbEZNnmWd1O1VFOz4BgUqbNM0iZodfKdIynKXawG5Vy4gylYmHzSNdzgIP-Vw7Q3xqyL5V8vkXbd/s4032/IMG_4676.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3024" data-original-width="4032" height="300" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjyhuUgMFwH3AlaC62qa8Yl6ZwT-2nYoiWSmWDkx6TUQI3HXngmHRkZYg7g7ahrNtYInGfuQ_JJe7nC-sQqyy_Zs2iKWb47cIyMBt0CEyIudGEtKbEZNnmWd1O1VFOz4BgUqbNM0iZodfKdIynKXawG5Vy4gylYmHzSNdzgIP-Vw7Q3xqyL5V8vkXbd/w400-h300/IMG_4676.HEIC" width="400" /></a></div><div><br /></div><div><br /></div>所以小 RST-135 變成這樣:<div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhQBxMyg4Bglmfx9-lOgAj15A6pDOMwftsPczo5QAD-CQqujlfLZr_C45w5HWdN_KmDy4t76tb1lt9wBqY_CCrDxSWS-n1jLuUFOEgQEBJuvJN_CFY6XpOKf5KuIPXjT4QJNCpfZ87aTvf_6sLW8jMDhQRIeaH8YVl_0Vc_Duq8uMPJmznmN3rH58OT/s4032/IMG_4709.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="4032" data-original-width="3024" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhQBxMyg4Bglmfx9-lOgAj15A6pDOMwftsPczo5QAD-CQqujlfLZr_C45w5HWdN_KmDy4t76tb1lt9wBqY_CCrDxSWS-n1jLuUFOEgQEBJuvJN_CFY6XpOKf5KuIPXjT4QJNCpfZ87aTvf_6sLW8jMDhQRIeaH8YVl_0Vc_Duq8uMPJmznmN3rH58OT/w300-h400/IMG_4709.HEIC" width="300" /></a></div><br /><p><br /></p><p>趕快上場試試 ~ 首先就是在漫漫陰雨天時研究的義大利麵條,編號可以叫作:Sh 2-240,位置很好找,在金牛的牛角 1.7 等亮星 beta Tauri 東邊一點點而已。義大利麵條整團大約有 3 度大小,平地屋頂的條件完全不考慮小鏡子,只能用大隻的把倍率稍微拉高,而且還要挑比較有機會的 "局部" 試試看,研究半天最後挑了 3 塊。</p><p><br /></p><p>下一步要對星圖;先找張天文相片,長這樣:</p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiafmhg12Tv75hgu82TOROfWgptF1WPaUs7-WRQiwMRq4P9FcUBM0g2dDa7LMiSYJS7hgmC6-OnL8AwB4eMxbsSPIY54c2BVc9M6M4aVk97iHGXG41S_CkY9wW_SZ5QeCa8tuUZYk-gOTxuyiQ01afkQXhjnL3CnS2quIrTf7d1a7PPsHirUkWYyMuZ/s1358/8F139001-30B4-4623-9B33-E4B5E3BE06A0.jpeg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1358" data-original-width="906" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiafmhg12Tv75hgu82TOROfWgptF1WPaUs7-WRQiwMRq4P9FcUBM0g2dDa7LMiSYJS7hgmC6-OnL8AwB4eMxbsSPIY54c2BVc9M6M4aVk97iHGXG41S_CkY9wW_SZ5QeCa8tuUZYk-gOTxuyiQ01afkQXhjnL3CnS2quIrTf7d1a7PPsHirUkWYyMuZ/w266-h400/8F139001-30B4-4623-9B33-E4B5E3BE06A0.jpeg" width="266" /></a></div><br /><p>我挑了 (1) 麵團左下角有一塊 (2) 麵團整個右側 (3) 麵團下方那顆紅點</p><p><br /></p><p>再下一步要從電子星圖中認出正確的星點位置…… 通常這是最辛苦的步驟,主要因為天文相片裡的星點 "亮度" 顯示跟電子星圖,甚至實際目視星點亮度常常不一樣,因此茫茫星海中對起來很容易迷路:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg93vjvhmMSmVehSDABrPSSF7L5HIXvZEIgOkp__PE-l9oIfCluQISO82oC1lMvxN88oHzrC4VGV4aEtcOml8yJb90jHXKW0BETefjSO2VYmkS4V5TfwaejGNSDNwWP0mfgrTYTT1_Aj-SN-GXNU1DR9GPeOHjxxBXTNIZGYUs2PIL_FD_nVPH7Rg0z/s1503/0FE53442-5921-4F0A-A17E-97DCDD0DCAD2.jpeg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1503" data-original-width="1179" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg93vjvhmMSmVehSDABrPSSF7L5HIXvZEIgOkp__PE-l9oIfCluQISO82oC1lMvxN88oHzrC4VGV4aEtcOml8yJb90jHXKW0BETefjSO2VYmkS4V5TfwaejGNSDNwWP0mfgrTYTT1_Aj-SN-GXNU1DR9GPeOHjxxBXTNIZGYUs2PIL_FD_nVPH7Rg0z/w314-h400/0FE53442-5921-4F0A-A17E-97DCDD0DCAD2.jpeg" width="314" /></a></div><br /><p>對出來了,最後還要做反向:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh9bpZLuxxAUDs-aA045LTmNZaq--LYT54UDtBHgspRCCdXoz5Ci__qjt4IcoWqUsH5tSgB9n5lXgviHbTB8kMyI--3f5K4Gq8U6uZxkW_ZdsFV5l420EEUvfSRhojHvtA4myD1CliQrPwblQvtPRzN_kre4Yvv8UVybclp9RCh1qibUhwQBQ5zRP9C/s1503/E9383222-58EB-4420-98D5-A36927C5B761.jpeg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1503" data-original-width="1179" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh9bpZLuxxAUDs-aA045LTmNZaq--LYT54UDtBHgspRCCdXoz5Ci__qjt4IcoWqUsH5tSgB9n5lXgviHbTB8kMyI--3f5K4Gq8U6uZxkW_ZdsFV5l420EEUvfSRhojHvtA4myD1CliQrPwblQvtPRzN_kre4Yvv8UVybclp9RCh1qibUhwQBQ5zRP9C/w314-h400/E9383222-58EB-4420-98D5-A36927C5B761.jpeg" width="314" /></a></div><br /><p>然後才能拿這張尋星圖上工,如果要再講究一些最好先搭配好尋星用的目鏡倍率與視野大小,這樣實戰作業時才比較一致。</p><p><br /></p><p>結果呢? 最後只有 (1) 成功而已:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj5M7rF012fLrEOy2z6Ml0lKNlecDnpGOMS745NRj6op0G8ApwrWyOMniHegQ2TdqUJRyAt4oRbw0Hhpcnr2Na59HO6xWFyvQU_bTPbefYEfxvgHGNpJZI3T2WcWZO1YGFpbgc65YQoHAlNnbSU6nbuknNGzBxfAJKIGzp6B1g6xbSGEudXI6VmNfcv/s2824/IMG_4740.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2824" data-original-width="2824" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj5M7rF012fLrEOy2z6Ml0lKNlecDnpGOMS745NRj6op0G8ApwrWyOMniHegQ2TdqUJRyAt4oRbw0Hhpcnr2Na59HO6xWFyvQU_bTPbefYEfxvgHGNpJZI3T2WcWZO1YGFpbgc65YQoHAlNnbSU6nbuknNGzBxfAJKIGzp6B1g6xbSGEudXI6VmNfcv/w400-h400/IMG_4740.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NNE part of Sh 2-240 (CFF 160 f/6.5; 17mm Ethos for 61X; O III filter)</td></tr></tbody></table><br /><p>還算明顯,我覺得比西面紗 "稍難" 的程度,圖上雲氣覆蓋的是幾顆 10 等亮左右的星星,上面單獨一顆編號: HD 246515 附近雲氣最明顯,其次就是下面 HD 246646 那幾顆附近了。(2) 那整片我當時認不出來。(3) 那個小紅點也一樣,相片看起來很明顯,但實際上不管用不用濾鏡、拉高倍... 都沒用,改天問問其他有拍的同好,這顆小紅點是用曝光更久的另外疊上去嗎? 還是用哪種濾鏡?</p><p><br /></p><p>義大利麵團就這樣而已了接下來找了一下別名火焰星雲的 NGC 2024;之前會走到這裡都是為了認馬頭,天文相片裡的火焰星雲璀璨又壯觀,不過雖然沒認真找過 NGC 2024,但印象裡找馬頭時滑過附近卻從來不見什麼明顯雲氣,出了什麼差錯呢?</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjmY-78suEzOLCpzlXOumsCjAJbFpNVpgEuyzlxTD46_EItIg8-VapT8701DhP2aTGv1nmBA0Mq3tEkxn80N0yQ2cPg-Oa0y6pYauZOu3Ts_EzwNfbUvBq0gIJ_-Jnsqf1C-48VSNEPrHxkgtFTOvW5mRJosC1bcFho5F6s-T64ClcKWgw-xoqpPYKb/s2669/IMG_4739.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2669" data-original-width="2669" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjmY-78suEzOLCpzlXOumsCjAJbFpNVpgEuyzlxTD46_EItIg8-VapT8701DhP2aTGv1nmBA0Mq3tEkxn80N0yQ2cPg-Oa0y6pYauZOu3Ts_EzwNfbUvBq0gIJ_-Jnsqf1C-48VSNEPrHxkgtFTOvW5mRJosC1bcFho5F6s-T64ClcKWgw-xoqpPYKb/w400-h400/IMG_4739.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 2024 (CFF 160 f/6.5; 12.5mm Nikon NAV-HW for 83X; O III filter)<br /></td></tr></tbody></table><br /><p><br /></p><p>跟找馬頭一樣,目鏡下第一眼就是超耀眼的參宿一 (Alnitak),而且離 NGC 2024 太近到會有影響的程度。套上 O-III,把參宿一移出視野最好,東側馬上就能察覺雲氣,看久一些,眼睛適黑狀況更好後雲氣中央的裂縫就可以認出來了,倍率低加上 seeing 不佳,看不出天文相片裡裂縫的枝枝節節,不過裂縫主幹還算清楚。想一想... 其實找馬頭前可以用著個目標來練習,練習習慣暗縫的感覺。</p><p><br /></p><p>RST-135 背 CFF 160 看起來完全沒問題,接下來看換裝 Losmandy 長板的 RST-300 好不好用。最近懶得把 12 吋牛頓鏡扛上屋頂,因此多半只看中天或北天目標,所以轉向開始有點西下的仙后座,第一個目標是離仙后座 epsilon 星 0.5 度左右的行星狀星雲 IC 1747,這個目標以前找過:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjpVSVBYfSGZ1RHjmWWG3uJkQLfkJQNLiNtfrEtkmWpiCucbd9wp_i1Z-Vo4ypLvvGMmRPf5bvn6kTKuLmpPmMKEgklHrnNynU2OWUHgF81lfG5kPgmiwEs2Xg998kuxYW3oLeur33hC73nToIMysJMMe0yW71-3Phqfgj8KFzzn4gSdaeb1HKHAPjP/s1600/IMG_1689.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1600" data-original-width="1280" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjpVSVBYfSGZ1RHjmWWG3uJkQLfkJQNLiNtfrEtkmWpiCucbd9wp_i1Z-Vo4ypLvvGMmRPf5bvn6kTKuLmpPmMKEgklHrnNynU2OWUHgF81lfG5kPgmiwEs2Xg998kuxYW3oLeur33hC73nToIMysJMMe0yW71-3Phqfgj8KFzzn4gSdaeb1HKHAPjP/w320-h400/IMG_1689.JPG" width="320" /></a></div><br /><p>這次用反射鏡看:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi8m5HUP93fDDbdyShoKyeIlKwi74n40BTuYjfeIsYv_8ua_CB6LULwfmRms7SjcE0DqzBNi_RorcXUhbiysL5SlSG1YKky5LZy2HPUNFN63CEfEMAq4pyNFqhb_Ia54HAOhJGLdKZ9yQnTInMN_0QyC4YTxRjyDs5MmO01ASRUiQpmNq6eD6VMSem_/s2719/IMG_4752.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2719" data-original-width="2719" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi8m5HUP93fDDbdyShoKyeIlKwi74n40BTuYjfeIsYv_8ua_CB6LULwfmRms7SjcE0DqzBNi_RorcXUhbiysL5SlSG1YKky5LZy2HPUNFN63CEfEMAq4pyNFqhb_Ia54HAOhJGLdKZ9yQnTInMN_0QyC4YTxRjyDs5MmO01ASRUiQpmNq6eD6VMSem_/w400-h400/IMG_4752.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">IC 1747 (305mm f/3.85 newtonian, 3.7mm Ethos for 324X, UHC filter)</td></tr></tbody></table><br /><br /><p>IC 1747 其實很簡單,倍率拉一下就算沒濾鏡也看得到,"看得到" 沒什麼,看到細節才有趣,上面這兩張素描最大的差別在 2016 年用 Mewlon-210 做到 244X 看時居然能看出中空的環狀! 我看老外一些老手都要做到 500X 以上甚至 900X 才看得出其中的空洞,那到底當時我是怎麼看到的? 而且素描紀錄裏當時的 seeing 很差,這樣應該更不利於辨識小目標的細節才是。仔細翻一下當時的文字觀測紀錄... 其實當時並不是看到 "中空",而是略有面積的雲氣範圍裡 南北 兩側的雲氣看起來較濃厚... 嗯,這樣就解釋得通了。 </p><p><br /></p><p>這次看到的樣子非常普通,大部分小小的行星狀星雲放大到 2~300X 仔細看都會長這樣,中央部分比較亮,外面再圍一層淡淡的雲氣。由於倍率不夠且 seeing 不佳,小行星狀星雲的中空並不容易看出來,而加了 O-III 或 UHC 後反而容易看出早期噴發到外圍的雲氣,但比對天文相片時會覺得差很多,明明是中空的怎麼變中央核心了! ^^"</p><p><br /></p><p><br /></p><p> 仙后座有很多有挑戰性的行星狀星雲,Sh 2-188 也是其中之一:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgLJty1AirbJs9tTf3eJDU6cUASM8GHgtkg0gAJ6DSkZxa2409haALp0dIBnu4ZN9A3dAYtppqosYWmLhbJ0fxPkz5pI9ug-QJVU2LDJQMV2X9l7kb08tXYxDnUdcuY1C0xbywiHr1GK5zEpZF4EIvycY2Vp1NkR_pKY74x7Ldq6H8y1jEVQJV8XA_R/s2411/IMG_4753.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2411" data-original-width="2411" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgLJty1AirbJs9tTf3eJDU6cUASM8GHgtkg0gAJ6DSkZxa2409haALp0dIBnu4ZN9A3dAYtppqosYWmLhbJ0fxPkz5pI9ug-QJVU2LDJQMV2X9l7kb08tXYxDnUdcuY1C0xbywiHr1GK5zEpZF4EIvycY2Vp1NkR_pKY74x7Ldq6H8y1jEVQJV8XA_R/w400-h400/IMG_4753.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Sh 2-188 (305mm f/3.85 newtonian, 10mm Ethos for 120X, O-III filter)</td></tr></tbody></table><br /><br /><p>這個目標難在面積有點大,有點像之前看過的那些古老行星狀星雲,而且目視時只有東側弧狀較明顯,因此感覺比較像 NGC 6888 弦月星雲這類常見的超新星殘骸... 坦白說看得有點辛苦,averted vision 下比較有把握,120X (exit pupil diameter 2.5mm) 已經是極限了,出瞳徑再小下去不管用不用濾鏡都認不出來。</p><p><br /></p><p>Losmandy 長夾具還不錯,值得推薦... 不過好像買不到了? 我是在德國網站的存貨裏找到的。</p><p><br /></p><p>2022 年末因緣際會下又買了一隻 4 吋折射鏡,哈哈~</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEikul5srDW-8epwZvxS0gYXSgegiEverbOu3cCnHflk1eZpNNkAV80fJMlab1zyeRhOY_CLXEVRK4506nK19vRmwRJFe-bE3yONWG50SVYbhp-fiNjhR9WcVjP-vtwmUjAasoOXFyLOaJ3kXSeIKa1hloUPP4XCPHuXbh3njg2RxeAyNUpvDykd7WUS/s4032/IMG_4762.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="4032" data-original-width="3024" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEikul5srDW-8epwZvxS0gYXSgegiEverbOu3cCnHflk1eZpNNkAV80fJMlab1zyeRhOY_CLXEVRK4506nK19vRmwRJFe-bE3yONWG50SVYbhp-fiNjhR9WcVjP-vtwmUjAasoOXFyLOaJ3kXSeIKa1hloUPP4XCPHuXbh3njg2RxeAyNUpvDykd7WUS/w300-h400/IMG_4762.HEIC" width="300" /></a></div><br /><p>我還是很愛 4 吋折射鏡的!! 趕快來開光,東北季風又開始吹了,下一次晴夜不知道要等多久...</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgx9bXrFGBZZy-H0d_kwZAzt6UTr1tf3aLdpgI-g9nZmpmMVEACmpQvLSFTNJ0FgRbvQt4uXzJAs186DuzFHIIF2R8-VebNLvfuPcJktWy0MIVDbMpBqWRZMmBJKompkoQKjKu2_WvyHFVGctDxPp2gwkKEiQ9hJN6a7FG-rq0U1sXNzdyqiOMzSskU/s2632/IMG_4790.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2632" data-original-width="2632" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgx9bXrFGBZZy-H0d_kwZAzt6UTr1tf3aLdpgI-g9nZmpmMVEACmpQvLSFTNJ0FgRbvQt4uXzJAs186DuzFHIIF2R8-VebNLvfuPcJktWy0MIVDbMpBqWRZMmBJKompkoQKjKu2_WvyHFVGctDxPp2gwkKEiQ9hJN6a7FG-rq0U1sXNzdyqiOMzSskU/w400-h400/IMG_4790.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 604 in M33 (FC-100 DZ, 6mm Ethos + 2X barlow for 267X)</td></tr></tbody></table><br /><p>NGC 604 也算是老朋友,看很多很多次之後熟門熟路就不難認了。4 吋鏡的專長當然不是集光力,把倍率拉超高主要是想看其光學品質能耐,0.37mm 出瞳徑下星點狀況如何? 有色差跑出來嗎? ...... 沒有沒有,星點細細的沒變形,沒像差也沒色差,非常完美,也順利認出約略南北拉長的 NGC 604,沒問題。</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhhOmZWzQLUUo9Vqn7tXxZwfv_mKLkEa_--tSTXrwM79rMab-A8H_nc2YX5MZvRCWIeLvDRqR8Z7JDz1evflzLJ7Jbl6JwhDatDXfoXHbInS6iwCzAZDWq5s6AE_faU_-zepBUmLgVWhkS6bdclGfr4QTlA69wWm6vby8mKYiCfSFo978oA1JphWFSM/s1818/IMG_4789.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1818" data-original-width="1818" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhhOmZWzQLUUo9Vqn7tXxZwfv_mKLkEa_--tSTXrwM79rMab-A8H_nc2YX5MZvRCWIeLvDRqR8Z7JDz1evflzLJ7Jbl6JwhDatDXfoXHbInS6iwCzAZDWq5s6AE_faU_-zepBUmLgVWhkS6bdclGfr4QTlA69wWm6vby8mKYiCfSFo978oA1JphWFSM/w400-h400/IMG_4789.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 2438 in M46 (FC-100 DZ, 12.5mm Nikon NAV-HW for 64X, O-III filter)<br /></td></tr></tbody></table><br /><p><br /></p><p>幾顆星點不夠,最好來看視野裡滿滿的星點才過癮;我最喜歡的 M37 跟 M46 挑一個...... M46 好了,裡面也有一個 NGC。不過氣溫這麼低畫 M46 實在不是個好主意,星點太多太密,手凍著描星點真痛苦,結果虎頭蛇尾只認真的畫了西側三分之一的星點;行星狀星雲 NGC 2438 用 O-III 看非常明顯,它的環狀與中洞低倍就認出來了,改天應該拉個 3~500X 來看細節才對。</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEis2mxv0_DzuTqjc7xcQMVEkRK3qecB8ZipdZMGs9FBnfwDoNtywbRTiLsE9UyO0mZ1HVtUELlLuvVaP-Gzu3r3BqffXQkcILXuSAXwhf2cmaZ8z_aZagBtG00-hsZB-pgSoDFFKzlVWJdfOSaxcpGrSnLjcZHkOORa5lhLCNpercnUYVp4yDzeokos/s1776/EFDA19F3-0A28-437A-BDC1-B7ECB591841B-47897-00001EE0638F9BDC.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1184" data-original-width="1776" height="266" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEis2mxv0_DzuTqjc7xcQMVEkRK3qecB8ZipdZMGs9FBnfwDoNtywbRTiLsE9UyO0mZ1HVtUELlLuvVaP-Gzu3r3BqffXQkcILXuSAXwhf2cmaZ8z_aZagBtG00-hsZB-pgSoDFFKzlVWJdfOSaxcpGrSnLjcZHkOORa5lhLCNpercnUYVp4yDzeokos/w400-h266/EFDA19F3-0A28-437A-BDC1-B7ECB591841B-47897-00001EE0638F9BDC.jpg" width="400" /></a></div><p><br /></p></div>s00639http://www.blogger.com/profile/08382086616742866311noreply@blogger.com2tag:blogger.com,1999:blog-7477593545230087753.post-84250851028615436122022-12-15T18:11:00.003+08:002022-12-15T18:11:58.829+08:00小精靈星雲裡的黑點與七姐妹星團裡的反射星雲<p>別名小精靈星雲的 NGC 281 也是秋冬的熱門目標之一,看到它的雲氣不能說輕而易舉,但也不是非常困難;用窄頻的濾鏡,有過一兩次成功經驗,之後的挑戰就只是怎麼看才會像個 "小精靈" 呢?</p><p><br /></p><p>這是多年前第一次畫的 NGC 281:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhjhTUQRHUrO7QMyrZ0Onw_RSh8MxOULHLQRPEhrzR-jA7yqKuECaUf1rmNEVM2VSuGy8JV_LccFxjswX2ywR2MraRrzAw80ULc0o4WvZztoVM1Y_vAOqRVQ39UA8N1xxgKxb_mcq4--kzptliZ-yGqOPzjKHs5TyTBMDu-_HwKF2yCGs5XqX80uCOD/s1030/N281-TEC140-28X-2014.png" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1030" data-original-width="686" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhjhTUQRHUrO7QMyrZ0Onw_RSh8MxOULHLQRPEhrzR-jA7yqKuECaUf1rmNEVM2VSuGy8JV_LccFxjswX2ywR2MraRrzAw80ULc0o4WvZztoVM1Y_vAOqRVQ39UA8N1xxgKxb_mcq4--kzptliZ-yGqOPzjKHs5TyTBMDu-_HwKF2yCGs5XqX80uCOD/w266-h400/N281-TEC140-28X-2014.png" width="266" /></a></div><br /><p>果然是 "有雲氣就好",雲氣最濃處沒錯,黑縫也沒錯,這是隻倒過來的小精靈;不過我很好奇的是當時 SQM 只有 16.15,看起來是將近滿月時...... 這樣也看得到? 有機會在同樣條件下要再試一次。</p><p><br /></p><p></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiir0HR0Uu-RMN90w7_UFJoh_0bX5Pw2T240zfmpUQo61uHDZG20VZKwFD9_gvZkeTSev-Ii60-jaeA7mcYH0m-hAOFfrn4g024UdmkOhpVFULEJcRdTf5O2f4SHvgdwHnPLKLb3gn5MhfBRRv4d4EfNn3N9LQQ1BFZlIPr-LHVuZrfURmEzjeVlsiH/s3264/N281-FC100-59X-2015.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3264" data-original-width="2448" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiir0HR0Uu-RMN90w7_UFJoh_0bX5Pw2T240zfmpUQo61uHDZG20VZKwFD9_gvZkeTSev-Ii60-jaeA7mcYH0m-hAOFfrn4g024UdmkOhpVFULEJcRdTf5O2f4SHvgdwHnPLKLb3gn5MhfBRRv4d4EfNn3N9LQQ1BFZlIPr-LHVuZrfURmEzjeVlsiH/w300-h400/N281-FC100-59X-2015.jpg" width="300" /></a></div><br /><p></p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEitGlfskf1HCjqAqPQRKiUlaOpwASWG8SZjhVKsEZCxxHBm6e5rdbD8aoXMtbJy6Jut1gZ1e8pMtoEXHcDmbYyVHFTZR25i2DwSYbrqtA7TJrn4aFbFCppJrrq4M0ElqFzH5N-YBqJrDfCKbwy_gU1G4GYrbIFDJ_vaP0ybSq8YTMFjChwclBpR9aJc/s4032/N281-FC100-37X-2015.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="4032" data-original-width="3024" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEitGlfskf1HCjqAqPQRKiUlaOpwASWG8SZjhVKsEZCxxHBm6e5rdbD8aoXMtbJy6Jut1gZ1e8pMtoEXHcDmbYyVHFTZR25i2DwSYbrqtA7TJrn4aFbFCppJrrq4M0ElqFzH5N-YBqJrDfCKbwy_gU1G4GYrbIFDJ_vaP0ybSq8YTMFjChwclBpR9aJc/w300-h400/N281-FC100-37X-2015.jpg" width="300" /></a></div><div><br /></div><div><br /></div><div>這兩張是差不多時間用同隻鏡子看的,也是頭上脖下倒過來的小精靈,不過下面那張 HD 5005 西側一小塊暗雲是怎麼回事? 然後倍率這麼小真的分得出細節嗎? 這張的星點超多,觀察條件應該不錯。</div><div><br /></div><div><br /></div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgEP5uA8pwMv3LVNO9_amqlEV4eqinmI6XhXQQuTbRxml_x5x4TQBE-GR0OdzYMlv4pD3slmnjt94GPW6yip3Bbiqb5cbofUip41e30-IdlkcNrUqpltu5nXX4gSqYwP5lNgDrX2_88kiTKt3FEa9iBN_RNnsvrYYEck1YaZiJ2vqcsD0QDfR919Mk7/s1844/N281-Borg77-26X-2017.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1792" data-original-width="1844" height="389" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgEP5uA8pwMv3LVNO9_amqlEV4eqinmI6XhXQQuTbRxml_x5x4TQBE-GR0OdzYMlv4pD3slmnjt94GPW6yip3Bbiqb5cbofUip41e30-IdlkcNrUqpltu5nXX4gSqYwP5lNgDrX2_88kiTKt3FEa9iBN_RNnsvrYYEck1YaZiJ2vqcsD0QDfR919Mk7/w400-h389/N281-Borg77-26X-2017.jpg" width="400" /></a></div><p><br /></p><p>這也是低倍找雲氣的觀察而已</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiQyQa-A_DUXu34Vi4-h9P-V9Zfkan5pzWeu3TyYy8KTnNnKnmfz1zqp7Glk48Z5ySfhA1FggA29I0EQMPPxevR4NlQl_IT7lCDjhx_pwyw5yH9xUQul3ryThy8U5sOPVmGi5Ms99mOMEIwpKXVgXNnj2lhO1fHDNBwB2iMwf4L4BYexw4dnFXRr7lo/s3024/N281-TEC140-78X-2019.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3024" data-original-width="3024" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiQyQa-A_DUXu34Vi4-h9P-V9Zfkan5pzWeu3TyYy8KTnNnKnmfz1zqp7Glk48Z5ySfhA1FggA29I0EQMPPxevR4NlQl_IT7lCDjhx_pwyw5yH9xUQul3ryThy8U5sOPVmGi5Ms99mOMEIwpKXVgXNnj2lhO1fHDNBwB2iMwf4L4BYexw4dnFXRr7lo/w400-h400/N281-TEC140-78X-2019.jpg" width="400" /></a></div><br /><p>這張同樣以 HD 5005 為中心來認雲氣範圍;因為看過很多次對目標也熟了,就會開始找細節,比如說小精靈的嘴巴在哪裡呀? ---- 暗部形成的嘴張開朝上。</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi9guJfDlB0eaCs_GQ4yzElOQsqN7YiQI3BHM2Kuf1cbhGRkWpX572vCIvFf5Be_v0Q2kHLVoAZh8FbLAo2A5XaJ4JdsDhhOinfeu9Na6F1icUZhjmdEthDMYuqrTZZgZczKAL7A7yFa5uOTcQJv50xb3pCKuMzrsjgAsHu3t5WkhHJAsvzdWQcpV77/s2245/IMG_4461.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2245" data-original-width="2049" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi9guJfDlB0eaCs_GQ4yzElOQsqN7YiQI3BHM2Kuf1cbhGRkWpX572vCIvFf5Be_v0Q2kHLVoAZh8FbLAo2A5XaJ4JdsDhhOinfeu9Na6F1icUZhjmdEthDMYuqrTZZgZczKAL7A7yFa5uOTcQJv50xb3pCKuMzrsjgAsHu3t5WkhHJAsvzdWQcpV77/w365-h400/IMG_4461.JPG" width="365" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">IC 1590 in NGC 281 (406/1800mm Dobsonian; 3.7mm Ethos for 486X or 6mm Ethos for 300X with Tele Vue Nabustar UHC)</td></tr></tbody></table><br /><p><br /></p><p>認得出嘴巴後再來認眼睛,哪裡是眼睛? 每次看相片時我都會覺得 HD 5005 東北側有一小塊很顯眼的暗星雲像眼睛,所以我就把它當眼睛來認了。既然很小點,倍率就要拉高才行,順便標註一下來說明:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEilfxhXDf4HUkHEzultTgOkl8WMSYHOekcDME30g5yhKhHBDwAQ6UtrpdjK-ZdSdq8MB9Rzv4Cx-jLO2OxFXcgdZZ92ClTWxlVusgnPtz131NUluM_HYNQsb2w0JPWGGDT3sANZYA9haZ2Dnv_RKAJ-ji9ChAalde-IJvYsbGHJy-sf8YmaAEoohgmL/s2245/IMG_4461.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2245" data-original-width="2049" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEilfxhXDf4HUkHEzultTgOkl8WMSYHOekcDME30g5yhKhHBDwAQ6UtrpdjK-ZdSdq8MB9Rzv4Cx-jLO2OxFXcgdZZ92ClTWxlVusgnPtz131NUluM_HYNQsb2w0JPWGGDT3sANZYA9haZ2Dnv_RKAJ-ji9ChAalde-IJvYsbGHJy-sf8YmaAEoohgmL/w365-h400/IMG_4461.JPG" width="365" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">IC 1590 in NGC 281 (406/1800mm Dobsonian; 3.7mm Ethos for 486X or 6mm Ethos for 300X with Tele Vue Nabustar UHC)<br /></td></tr></tbody></table><br /><p><br /></p><p>拜 40 公分大口徑之賜,就算在平地陽台,不用濾鏡也能略略看見雲氣;以 HD 5005 為中心的星點們看起來更像一個星團了,HD 5005 的東側有兩顆 10.X 等亮比較明顯的星星,夾在中間又有三顆 12.X ~ 13.X 形成三角形的暗星,就貼著三角形的西側有塊暗星雲。由於倍率拉很高,解析度變差後,原來不管是亮的或暗的目標會糊糊的放大,這是 "找到" 目標的一個技巧,可以幫助 "認出" 但會犧牲掉看清楚其真正的大小與樣貌,所以看起來小精靈就有顆稍微大一點的眼睛啦!</p><p><br /></p><p>如果倍率不要狂拉到 4~500 倍,用 300X 加濾鏡把雲氣凸顯出來做對比,這樣效果會更好嗎? 我覺得不會,跟拉超高倍的效果差不多。後來我也用 16 公分折射鏡確認過,怎麼確認看見的 "暗星雲眼睛" 不是大腦的雜訊? 主要是我看到的暗星雲是稍微長條狀的,長條朝西或西北西方拉長,跟天文相片一致,所以還蠻確定沒問題。不過 40 公分鏡看 "嘴巴" 輪廓一定比 16 公分鏡清楚許多,不管用什麼倍率都一樣。</p><p><br /></p><p>另外一個是反射星雲:</p><p>Messier 45 在好天氣而且 seeing 不錯的情況下其實還蠻容易看見其反射星雲,雖然不仔細分辨很容易把這些圍繞在亮星周圍的雲氣當作亮星的耀光而已,但同樣的,曾經認真辨識過一次,之後就再注意到這些雲氣就不難了。</p><p><br /></p><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjkDmHOEh53SHnPEUhUM8xXFYGdk5vPtQRKM87rwVAQ7qwXIZawxo_r9v40TXehRb38LJeaA6W-XcWg3ixZ0TIX3fWj0wBif0IA6PSkdhOjDPfSmljDcHH9HmYA6sglGNULdgJt35U-MRkpQIVncVlYxQPWmzdUI3WPNKQF-dgWCpflnYQ-ZVbtXb0i/s1818/M45N1435-Mewlon180-54X-2017.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1818" data-original-width="1818" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjkDmHOEh53SHnPEUhUM8xXFYGdk5vPtQRKM87rwVAQ7qwXIZawxo_r9v40TXehRb38LJeaA6W-XcWg3ixZ0TIX3fWj0wBif0IA6PSkdhOjDPfSmljDcHH9HmYA6sglGNULdgJt35U-MRkpQIVncVlYxQPWmzdUI3WPNKQF-dgWCpflnYQ-ZVbtXb0i/w400-h400/M45N1435-Mewlon180-54X-2017.jpg" width="400" /></a></div><div><br /></div><div><br /></div><div>M45 裡的反射星雲都圍繞著亮星,NGC 1435 與 NGC 1432 這兩個比較有名,也是唯二有 NGC 編號的,上面那張是在昆陽看的,我覺得這張表達目視的感覺表達得蠻好,雖然說不要期待有天文相片畫面的結果,但也足夠清楚到可以認出雲氣範圍與方向。</div><div><br /></div><div>NGC 1435 與 NGC 1432 的別名當然就跟著照亮它們的星星一樣: NGC 1432 叫 Maia Nebula,NGC 1435 叫 Merope Nebula。Maia 中文叫 昴宿四,Merope 是 昴宿五,到底七姐妹誰是誰? 中英文名又怎麼對? 我在第一次畫 M45 時還真的有標呢:</div><br /><div class="separator" style="clear: both; text-align: center;"><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgQN86Gacszes2TEWocLrGQL0JAABK98ZTJjBtBkMLEdjIq-CdIZx0RblewC3FTIDKpPDCNQAGqESOJp-q8pPPPeHiiy-4hXbNKok5lavOHKoty-4R5J5rpn69U7Wlu2NStW4u-2Go8oIUGC56iqMoGn5-nVI2LUStVE4sHga-dgW_UVeb9QZNPAK3R/s784/M045-TEC140-25X-2014.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="784" data-original-width="610" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgQN86Gacszes2TEWocLrGQL0JAABK98ZTJjBtBkMLEdjIq-CdIZx0RblewC3FTIDKpPDCNQAGqESOJp-q8pPPPeHiiy-4hXbNKok5lavOHKoty-4R5J5rpn69U7Wlu2NStW4u-2Go8oIUGC56iqMoGn5-nVI2LUStVE4sHga-dgW_UVeb9QZNPAK3R/w311-h400/M045-TEC140-25X-2014.jpg" width="311" /></a></div></div><br /><div class="separator" style="clear: both; text-align: center;"><br /></div>不過上圖共標了 9 顆星,不是七姐妹嗎? 多的兩個是誰? 我 google 了一下,看起來像個勺子的 M45 杓柄末端那兩顆居然是爸爸跟媽媽,昴宿七 (Atlas) 是七姐妹的父親應該沒錯,昴宿十二 (Pleione) 就是母親囉。<div><br /><p>這次剛好碰到一個 seeing 超好的夜晚,我還真的第一眼就被這七姐妹的父母周遭不規則的雲氣吸引住了:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgE1fYsDxzKkjo75hb6WFcGdSx2Wjf7F0ykVjqmnn0cwwetSooFFjRJ7HweYA5JnphpO0aIMnIJpls6hXEoJLAj5j8de4um88taWM-m1pNWhoI7MwG9Lm8PFf-VZttL9UdXc9KpIcPQBYijxWshajDlalDBCJbQEkCvZZaGUa-s84dalFbD4roOgPQY/s1658/IMG_4460.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1656" data-original-width="1658" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgE1fYsDxzKkjo75hb6WFcGdSx2Wjf7F0ykVjqmnn0cwwetSooFFjRJ7HweYA5JnphpO0aIMnIJpls6hXEoJLAj5j8de4um88taWM-m1pNWhoI7MwG9Lm8PFf-VZttL9UdXc9KpIcPQBYijxWshajDlalDBCJbQEkCvZZaGUa-s84dalFbD4roOgPQY/w400-h400/IMG_4460.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Atlas & CED 19o; Pleione & CED 19p in Messier 45 (CFF 160 f/6.5; 3.7mm Ethos for 280X)</td></tr></tbody></table><br /><p><br /></p><p>雖然後來又看了好幾次,效果都沒 10/29 那晚來得好,Seeing 跟透明度的確都要很好才行。Atlas 周圍的雲氣向東側及南側偏,Pleione 的雲氣則稍向北方偏移,一大一小,一亮一稍暗,擺在同一目鏡視野看起來非常美。</p></div>s00639http://www.blogger.com/profile/08382086616742866311noreply@blogger.com0tag:blogger.com,1999:blog-7477593545230087753.post-48482400392095546872022-12-09T15:51:00.000+08:002022-12-09T15:51:07.420+08:00同時看見的不同時<p>每次仰望星空,尤其當望遠鏡視野裝著 2 個距離相差甚遠的目標時,腦海裡常會浮現出這個念頭 -- 正在同時看著不同時間的東西呢! A 星球 30 萬年前的事、B 星球 1500 萬年前的事,還有 1.26 秒以前月球的事情同時出現在眼前。看星系時參雜很多前景星也容易觸發這種感覺,星點越多就越有景深淺的立體感,NGC 891 就是一個例子。</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgld2CsJfI_cm_FHk-igoztAh9pG_TrRfPwOUJqY4mej3KyWKlp-e7c9MAgfYEbTEnGi6hfcSQU4HE4XS4udz2CEz1X3m790G4aQVzS8q7TTRvupTq9S0kEe09aEdaGEZMFroirRAWGN_QvoLHpiLpaf8I4lLxUPIw5AyzB14h0eKHEkZ80iEnrtMrx/s2301/IMG_4649.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2301" data-original-width="2301" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgld2CsJfI_cm_FHk-igoztAh9pG_TrRfPwOUJqY4mej3KyWKlp-e7c9MAgfYEbTEnGi6hfcSQU4HE4XS4udz2CEz1X3m790G4aQVzS8q7TTRvupTq9S0kEe09aEdaGEZMFroirRAWGN_QvoLHpiLpaf8I4lLxUPIw5AyzB14h0eKHEkZ80iEnrtMrx/w400-h400/IMG_4649.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 891 (CFF 160 f/6.5; 3.7mm for 280X)</td></tr></tbody></table><br /><p><br /></p><p>我對 NGC 891 的感情真是淵遠流長,而且 NGC 891 不是那麼容易看到,但越是看不到就越想看到,曾經連續幾個月天一有開就在找,找到後來背景 (應該是前景) 星點都印在大腦,連睡前眼睛閉起來都會出現星點畫面的程度,我也一直忘不了蹲在大雪山門口 35K 路邊第一次認出 NGC 891 時的興奮之情...... 儘管如此,大多的情況下我還是找不到。不是說看到一次就永遠看得到嗎? 不是說經驗可以彌補天份嗎? 但就算現在已經算是有點經驗了,還是在宇老山上用 CFF 250 槓龜過;但也曾在透明度很好時,SQM 19.3~5 的情況下用小到 FC-76D 及 Kowa 82mm 雙筒看到過,真是個奇妙的目標。</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh2-ONtN_QH2JdvYtdA_qyS7ABRY1akKT0OwNHhs4r-g2TZ_pdOb1Nmlb_1p5xm0Ed8wl7GxJAuydU3xFm7McEDzrr259YPTP38KPhXd5iTAOVZKUtg1m_r5bn-H1NrSUIzyAP3Z8CqBTXitBoiEclaVwZkpcDYAw8Pc6WsMHGr21xNuW0gp7ct5_nL/s760/N891-Mewlon210-268X-2014.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="760" data-original-width="616" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh2-ONtN_QH2JdvYtdA_qyS7ABRY1akKT0OwNHhs4r-g2TZ_pdOb1Nmlb_1p5xm0Ed8wl7GxJAuydU3xFm7McEDzrr259YPTP38KPhXd5iTAOVZKUtg1m_r5bn-H1NrSUIzyAP3Z8CqBTXitBoiEclaVwZkpcDYAw8Pc6WsMHGr21xNuW0gp7ct5_nL/w324-h400/N891-Mewlon210-268X-2014.jpg" width="324" /></a></div><br /><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjtKwxtxAS-0cSaFyOPmjiXVgrIFPMpPY6S4mjKuYtNVuPL2Z2QUFmOf_PoCKck--exbounWiKYWshYii9UsH0OS1BCLejwygFU2z9cRG6s2Uiz8qXtTnXRejMIyX7H94U-VbwBvFnxoTaXOEYscQr_zk03I3joBa2wVd8RrPAt5uw5jbwWt9eABG5U/s788/N891-Mewlon210-201X-2014.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="788" data-original-width="600" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjtKwxtxAS-0cSaFyOPmjiXVgrIFPMpPY6S4mjKuYtNVuPL2Z2QUFmOf_PoCKck--exbounWiKYWshYii9UsH0OS1BCLejwygFU2z9cRG6s2Uiz8qXtTnXRejMIyX7H94U-VbwBvFnxoTaXOEYscQr_zk03I3joBa2wVd8RrPAt5uw5jbwWt9eABG5U/w305-h400/N891-Mewlon210-201X-2014.jpg" width="305" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhW2CXC7VAxhsk1SJXcEWYD6rQCusPSctSq8fBM-ozKMzk-WQE1T4lvGAY8m1xTrBg_aafu9OMT9U76lKBErs6Ecd-c1eyIpSkmCaSvXOZVr_PIihQO0Kn4fSvH1v-_cBSVPOYBOH_W38Ner6B2eNEO6hSP56n6A6X-LcyzPRhV5xvHzt5AdaXyP2Ch/s767/N891-FC76-114X-2014.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="767" data-original-width="632" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhW2CXC7VAxhsk1SJXcEWYD6rQCusPSctSq8fBM-ozKMzk-WQE1T4lvGAY8m1xTrBg_aafu9OMT9U76lKBErs6Ecd-c1eyIpSkmCaSvXOZVr_PIihQO0Kn4fSvH1v-_cBSVPOYBOH_W38Ner6B2eNEO6hSP56n6A6X-LcyzPRhV5xvHzt5AdaXyP2Ch/w330-h400/N891-FC76-114X-2014.jpg" width="330" /></a></div><br /><p><br /></p><p>這三張都是 2014 年畫的,我覺得都太強調目標主體,應該沒那麼明顯,10/19 那張連雲氣的位置都有點錯誤了。不過當時剛開始畫圖,技巧不佳,能把參考星點畫對就不錯了。</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgq764nOjkW9VSGkNzaTI2Mj_pdHZ_KlRB2WaUDnDdymofDfVsCsrCAimAx5oRCVRtsN1KOQ8hNmwXCpJ8-8ccLOHWOtUjajqQTaUR9xKSyIoiiMw0I4pFp2qMnHzT0m1XHor9DGkiZF-Av2PHZnpkfy7kkf28RPkDKvPe3672w4w2yBlngxF62thxO/s1818/N891-KOWABINO-50X-2017.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1818" data-original-width="1818" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgq764nOjkW9VSGkNzaTI2Mj_pdHZ_KlRB2WaUDnDdymofDfVsCsrCAimAx5oRCVRtsN1KOQ8hNmwXCpJ8-8ccLOHWOtUjajqQTaUR9xKSyIoiiMw0I4pFp2qMnHzT0m1XHor9DGkiZF-Av2PHZnpkfy7kkf28RPkDKvPe3672w4w2yBlngxF62thxO/w400-h400/N891-KOWABINO-50X-2017.jpg" width="400" /></a></div><br /><p>這是 2017 年用 Kowa Highlander 8 公分雙筒畫的,蠻接近實際目視感覺,我還記得那天的情況,當時好像是最後才去找 NGC 891,本來沒抱什麼希望,所以當目標出現在目鏡視野時的興奮之情到現在還歷歷在目呢!</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh7QDRrivWdvmrv1_yGSdQkGT4RGN7z0y1qqFVmLdAIBG1Ckdt7hSWORB0fs0EQoQhushZ4H4VSPzespwbYitcDJiMQRE9f_Iy74xGMif9Cb4wilK-897PmYYHKrYIaqUvC8FwV_YnO7SFItQ_ezqLBH9kVnX3wqXtdjkdFpK9zzl6npEeOz_vOodqp/s2824/N891-WOFLT132-152X-2020.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2178" data-original-width="2824" height="309" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh7QDRrivWdvmrv1_yGSdQkGT4RGN7z0y1qqFVmLdAIBG1Ckdt7hSWORB0fs0EQoQhushZ4H4VSPzespwbYitcDJiMQRE9f_Iy74xGMif9Cb4wilK-897PmYYHKrYIaqUvC8FwV_YnO7SFItQ_ezqLBH9kVnX3wqXtdjkdFpK9zzl6npEeOz_vOodqp/w400-h309/N891-WOFLT132-152X-2020.jpg" width="400" /></a></div><br /><p><br /></p><p>這是 William 兄借我他們家的 FLT-132 看的,目標畫的太亮些,看得見的部分,比例還算準,星系兩端沒辦法看到很長很完整,只有中央核心附近的雲氣,其實天況的透明度影響很大。</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg__hO3DSwEQkB6gQHxquxyP1FaZtvrb3fwknGDPG-N_PJJvMdCc4yw2GFaRC4cffX0ma9SZw3ghQAMBGryjPAb1C8ClWeI4xsBH2mB4bwUU9du6t6Od3T0o09Doqhtu5nTfLtR8ZldLY3XW3q-tV0lq1jw95oU6SlPI3LOH8SUYhXC3IuB0py8zpgt/s2789/N891-GSO16Dob-390X-2021.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2560" data-original-width="2789" height="368" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg__hO3DSwEQkB6gQHxquxyP1FaZtvrb3fwknGDPG-N_PJJvMdCc4yw2GFaRC4cffX0ma9SZw3ghQAMBGryjPAb1C8ClWeI4xsBH2mB4bwUU9du6t6Od3T0o09Doqhtu5nTfLtR8ZldLY3XW3q-tV0lq1jw95oU6SlPI3LOH8SUYhXC3IuB0py8zpgt/w400-h368/N891-GSO16Dob-390X-2021.JPG" width="400" /></a></div><p><br /></p><p>這是去年剛拿到 16" DOB 時畫的,也算準確,目標本體還是一樣畫得太亮,實際亮度的感覺以最上面那張剛畫的比較接近。</p><p><br /></p><p>不管哪一年畫的,這附近星點不少,因此總會把星點相對位置都描好,然後再慢慢找雲氣範圍,如果觀測情況好,又會更進一步找濃淡差異之處,包括裂縫。說是裂縫,其實是暗色的塵埃,這時又能想像了... 想像看著夏銀河縮小、再縮小、再再縮小... 的對照,一霎那間好像整個人都飄在空中了呢!</p><p><br /></p><p><br /></p><p>NGC 891 附近有很多其它的星系,不過都很暗,以前在屋頂對這種 12.X 等亮的星系目標大多直接放棄,不過現在手上的鏡子都長大不少,因此還是會試試看:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi8NZ59mdDqncyUXb9sllGlVsrWd25t2O98vg-dCJta2lnJ8BVaElcL-kPft0wDJBXrieo7dS03RQmH5ssv67b8x7Q0lz_p8eBA2AEukLAa16MMAOzNphg7WMr97jqbD0rknJ4fo_VwewSdYrGXpF7XyYTRwUEABT8_qDFmPFaSNqItD8T7PbzwaaAc/s2154/IMG_4459.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2154" data-original-width="2154" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi8NZ59mdDqncyUXb9sllGlVsrWd25t2O98vg-dCJta2lnJ8BVaElcL-kPft0wDJBXrieo7dS03RQmH5ssv67b8x7Q0lz_p8eBA2AEukLAa16MMAOzNphg7WMr97jqbD0rknJ4fo_VwewSdYrGXpF7XyYTRwUEABT8_qDFmPFaSNqItD8T7PbzwaaAc/w400-h400/IMG_4459.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 910 (CFF 160 f/6.5; 6mm Ethos + 2X Barlow for 350X)</td></tr></tbody></table><br /><p>NGC 910 附近的一堆星系大概只有它跟 NGC 906 比較有機會,不過這次之前失敗了好幾次,別說 16 公分鏡了,連用 40 公分鏡都看不到;這次看到除了因為經驗累積外,當時天況不錯也是主要原因,對 NGC 910 的印象就是核心頗亮而已。</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiBze_B4tpstktUg6sjRAHS9fQK2ZlFLdrQXWjK5eMVkOsCJG7ALXY7VnE9EVI9PBnPOZAhYrKFzZd3gkxVln4zEnLnpcYJCWhS4_SKHwjSpbLijBOrEwlQgNCVRjRRoXrvHh7dgj47ba-Jnr6b3SCaIlv54-9Ep-vwf3hahNkODwkXCMLA-ptNGKWx/s2341/IMG_4647.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2341" data-original-width="2341" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiBze_B4tpstktUg6sjRAHS9fQK2ZlFLdrQXWjK5eMVkOsCJG7ALXY7VnE9EVI9PBnPOZAhYrKFzZd3gkxVln4zEnLnpcYJCWhS4_SKHwjSpbLijBOrEwlQgNCVRjRRoXrvHh7dgj47ba-Jnr6b3SCaIlv54-9Ep-vwf3hahNkODwkXCMLA-ptNGKWx/w400-h400/IMG_4647.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 910 (CFF 160 f/6.5; 3.7mm Ethos for 280X)<br /></td></tr></tbody></table><br /><p><br /></p><p>這次的天況更不錯,拜巷口那盞光明燈壞掉之賜,屋頂的星空暗度回到 10 年前水準。這次就不只核心跟核心引導出的雲氣了,實實在在的確認星系雲氣範圍。</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhQmlk4enI2FWpd5gUZfXTOJsiJiAdqorhXlbCoS5oUr_pxJzLIsbubyN_6m3bewfbvBOnT-aMUDlAL-wJtqI2bi3MjLUzgMWrrg9cpvKEG9yAZ8M9Kd_BKeJmirIOtOHRt-L4GfnSGlHl0rlo5K9wWs10Vh_RFsQyiOhssLUsOh82SY0NSsyNJbnQk/s2581/IMG_4648.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2581" data-original-width="2581" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhQmlk4enI2FWpd5gUZfXTOJsiJiAdqorhXlbCoS5oUr_pxJzLIsbubyN_6m3bewfbvBOnT-aMUDlAL-wJtqI2bi3MjLUzgMWrrg9cpvKEG9yAZ8M9Kd_BKeJmirIOtOHRt-L4GfnSGlHl0rlo5K9wWs10Vh_RFsQyiOhssLUsOh82SY0NSsyNJbnQk/w400-h400/IMG_4648.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 906 (CFF 160 f/6.5; 3.7mm Ethos for 280X)<br /></td></tr></tbody></table><br /><p>NGC 906 就很勉強,只能擺視野邊邊用 averted vision 瞄,還好可以持續看見來確認。</p><p><br /></p><p>NGC 910 與 NGC 906 都算是看 NGC 891 後的小點心,以前總希望能夠多看一些新目標,看到就好,不管品質如何,跟衝百米一樣;不過現在比較喜歡看稍微簡單的大目標,步調放慢一些,樂趣也不同。</p><p><br /></p>s00639http://www.blogger.com/profile/08382086616742866311noreply@blogger.com0tag:blogger.com,1999:blog-7477593545230087753.post-61093057937976350312022-11-04T10:16:00.001+08:002022-11-04T10:16:07.400+08:00改上自動架台的松本式雙筒<p> </p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgfUWRZp8NMJBCPHDRnGQ046WLxfzKFqko1m6wScKT49AzR15tLTP6owuK0wyFfHe6qkBzxHaY2fzYrT8uI3X49LLt1wUQp1V5obTheMsSOLg4Gv1et9K13rdaBETrdociX7uPB_ao7WSXflD6vHZiVy9K8rC62CE9lAERtzHRDkuvVzakVo7_3OTEq/s1183/CF24DC35-A874-453E-8AE9-8EAAACF42AC3-95011-000024A603D52684.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1183" data-original-width="1183" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgfUWRZp8NMJBCPHDRnGQ046WLxfzKFqko1m6wScKT49AzR15tLTP6owuK0wyFfHe6qkBzxHaY2fzYrT8uI3X49LLt1wUQp1V5obTheMsSOLg4Gv1et9K13rdaBETrdociX7uPB_ao7WSXflD6vHZiVy9K8rC62CE9lAERtzHRDkuvVzakVo7_3OTEq/w400-h400/CF24DC35-A874-453E-8AE9-8EAAACF42AC3-95011-000024A603D52684.jpg" width="400" /></a></div><br /><p></p><p>這組松本先生製作的雙筒是我打算上山輕鬆享受暗空的王牌;既然要輕鬆,就不用刻意尋找什麼困難目標,因此靈活的手動架台就很適合星空瀏覽了。結果時至今日已經一年多沒上合歡山,人算不如天算... 在家閒也閒著,試試放在 RST-135 如何? </p><p><br /></p><p>把 L 架倒過來:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjqSMs8D4ra6rCFHElSLVb2XgMa9BVUOJajO_7uXu76aieEkAmxRKsnLp205dm11ruixYeTEIENIBM7432AkgvHhIHlr7Cd8mGoxZA0zMryyFJ-UJ431yqJMSlk69OVYKTtWEGJasnv28gSVt3TBy12CvM1BqTa48JJW6gpzlO-9QGXUQxTfs_PWtrT/s3023/IMG_4213.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3023" data-original-width="3023" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjqSMs8D4ra6rCFHElSLVb2XgMa9BVUOJajO_7uXu76aieEkAmxRKsnLp205dm11ruixYeTEIENIBM7432AkgvHhIHlr7Cd8mGoxZA0zMryyFJ-UJ431yqJMSlk69OVYKTtWEGJasnv28gSVt3TBy12CvM1BqTa48JJW6gpzlO-9QGXUQxTfs_PWtrT/w400-h400/IMG_4213.HEIC" width="400" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi8vSAxCyfe2WI-CGsOOkuy5fRTBNEOGBCjqMkRXHFsUkYgG41BHa6QMLVmwCQVSo-AGDS0ULGQXIeTt6BCgW9zeEyNiWqwhPOjGR2kyfC6YRPmkOYc5r-Qr4IaT3oGJ_n8Ul9-aq2iI-tVEhUMquM4qDFxsHKnctjxR_8VblQajOgRwCtJ1B3bObbp/s3023/IMG_4215.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3023" data-original-width="3023" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi8vSAxCyfe2WI-CGsOOkuy5fRTBNEOGBCjqMkRXHFsUkYgG41BHa6QMLVmwCQVSo-AGDS0ULGQXIeTt6BCgW9zeEyNiWqwhPOjGR2kyfC6YRPmkOYc5r-Qr4IaT3oGJ_n8Ul9-aq2iI-tVEhUMquM4qDFxsHKnctjxR_8VblQajOgRwCtJ1B3bObbp/w400-h400/IMG_4215.HEIC" width="400" /></a></div><p><br /></p><p>架式不錯,擺上 Nikon 18X 70mm 直視型雙筒,操作起來很順手,雙筒就該架中央嘛! 看起來就是正。</p><p><br /></p><p>初試 OK,那麼 FC-76 DCU松本雙筒呢?要先算一下重量:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhQQ0BtP5WArmt8qumWXPAkeG9AQ-YnNxnlqxZ4Bwtv4JAHuaNlF4-uXCl8SbsJo8VNmjWVgEThU1BAepjtJajimhLkluBsSVYEZWlCTpiy32raEv_pGFqeqM-f_DoMxL-kzUOrQX2WEjOxmmWJcRRtvfGV1CBkBJaWGEJswvgGSRnHkov7o3nVhJ3w/s4032/IMG_4222.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="4032" data-original-width="3024" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhQQ0BtP5WArmt8qumWXPAkeG9AQ-YnNxnlqxZ4Bwtv4JAHuaNlF4-uXCl8SbsJo8VNmjWVgEThU1BAepjtJajimhLkluBsSVYEZWlCTpiy32raEv_pGFqeqM-f_DoMxL-kzUOrQX2WEjOxmmWJcRRtvfGV1CBkBJaWGEJswvgGSRnHkov7o3nVhJ3w/w300-h400/IMG_4222.HEIC" width="300" /></a></div><br /><p>可以可以,這個重量對 RST-135 而言一塊小蛋糕而已,只是沒必要用原來的手動架台,脖子太長了,而且反正都上自動架台,用固定式就好。那就請廠長作一個吧:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj3vMbcFKJzPTKcLmWNr54NJqibHsDEwXYhZuu-8KWDV0GsbXJnhVdfXj4qxYXSFTLjwujKgO3rT5kg_wyhkrRzH-Pa3HGX4C_VU3YWhSde5zX-BLHu39ayAnUugroeIUzQyHxtJSAtkreSTuGHf88OYPsiZv6hfwaerw3oKqB6z4led0NyRZFYhWev/s4032/IMG_4393.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="4032" data-original-width="3024" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj3vMbcFKJzPTKcLmWNr54NJqibHsDEwXYhZuu-8KWDV0GsbXJnhVdfXj4qxYXSFTLjwujKgO3rT5kg_wyhkrRzH-Pa3HGX4C_VU3YWhSde5zX-BLHu39ayAnUugroeIUzQyHxtJSAtkreSTuGHf88OYPsiZv6hfwaerw3oKqB6z4led0NyRZFYhWev/w300-h400/IMG_4393.HEIC" width="300" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><br /></div><p>沒多久就完成了,因為再三交代 "精度" ,免得兩支主鏡筒架起來準直差太多,所以廠長當然也沒漏氣,完工品整體精度準準準。架起來看看:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhJ7hL3keeXp40IoBP_htzH4VHL6FgdFjjHDArXZodbv3bAza9D5xJZjkXbPKJ4pGpWAC_HkSO7SIid3PwlFqrrqgnFPLWpO30txaKILSVwfqopUKXB0g1EwYn6Po4FBxy6V5LwJagL4Na8u8wXgVfOiEehH0aKolzKkUNgfo-NopXs1etcDMibsUm-/s4032/IMG_4365.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="4032" data-original-width="3024" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhJ7hL3keeXp40IoBP_htzH4VHL6FgdFjjHDArXZodbv3bAza9D5xJZjkXbPKJ4pGpWAC_HkSO7SIid3PwlFqrrqgnFPLWpO30txaKILSVwfqopUKXB0g1EwYn6Po4FBxy6V5LwJagL4Na8u8wXgVfOiEehH0aKolzKkUNgfo-NopXs1etcDMibsUm-/w300-h400/IMG_4365.HEIC" width="300" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjUKi1Wpnp-tQiTE-fbAOQyka8WBzVKcyQSVOHNGgR71P1GJ1IPw80FczzP_6W0nttkh0EdeScZmhjz6VyNQpLXov8ykddBUkvmZvV2DQuJL0NhPLa-McmZg5i8-CEEomaryh808RudMiGUlbb0-j8JXKqFsaJJuC6lP27DGug6blYXByXqdSLJKblR/s1776/26B315B4-0704-4433-84C7-9F3A96602CF5-31744-000011663D252EB6.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1776" data-original-width="1184" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjUKi1Wpnp-tQiTE-fbAOQyka8WBzVKcyQSVOHNGgR71P1GJ1IPw80FczzP_6W0nttkh0EdeScZmhjz6VyNQpLXov8ykddBUkvmZvV2DQuJL0NhPLa-McmZg5i8-CEEomaryh808RudMiGUlbb0-j8JXKqFsaJJuC6lP27DGug6blYXByXqdSLJKblR/w266-h400/26B315B4-0704-4433-84C7-9F3A96602CF5-31744-000011663D252EB6.jpg" width="266" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiFeLHeQLinty6RQRXJ5fO0J2aT5gfkvgAYsdFQ_-AK8ihKkN2iamZBnCKKxQHYDvz6c7AoXZUQYLlHjthrnlIAAJ1ac2BRN5rsA1p2bCZTLI5lvi2q7lesqenCP1J_cEqgDQc6mhNzNmAGTzZCHrlLkG8vrPQ_BJuBLhonOFp-BKEWIxd8JSdr-aon/s1776/53D52AF4-4B85-4B9F-BE7D-0668986B927F-31744-0000116634C6C1D4.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1776" data-original-width="1184" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiFeLHeQLinty6RQRXJ5fO0J2aT5gfkvgAYsdFQ_-AK8ihKkN2iamZBnCKKxQHYDvz6c7AoXZUQYLlHjthrnlIAAJ1ac2BRN5rsA1p2bCZTLI5lvi2q7lesqenCP1J_cEqgDQc6mhNzNmAGTzZCHrlLkG8vrPQ_BJuBLhonOFp-BKEWIxd8JSdr-aon/w266-h400/53D52AF4-4B85-4B9F-BE7D-0668986B927F-31744-0000116634C6C1D4.jpg" width="266" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhByNbHkIaCk2OPnzyyTh4FRuoZ-KKITvhf3py9Mc6qfaqfXyC159LYOmjD-BcSuMurwn5QY4b6HDdtAOCDlIMgQbJJeN2vl1tzZ4hio3pN4_UPLVQNR11GmN_xPglg4RzXDPeQsVyyJJvUu1jcEcg019KDpTip3BNbpXKEvK2fv1YEpXHyfJpQL5kF/s1776/EC9A297E-4FAB-420B-A516-24BFD78F0DCD-31744-0000116628165595.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1776" data-original-width="1184" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhByNbHkIaCk2OPnzyyTh4FRuoZ-KKITvhf3py9Mc6qfaqfXyC159LYOmjD-BcSuMurwn5QY4b6HDdtAOCDlIMgQbJJeN2vl1tzZ4hio3pN4_UPLVQNR11GmN_xPglg4RzXDPeQsVyyJJvUu1jcEcg019KDpTip3BNbpXKEvK2fv1YEpXHyfJpQL5kF/w266-h400/EC9A297E-4FAB-420B-A516-24BFD78F0DCD-31744-0000116628165595.jpg" width="266" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><br /></div>感覺虎虎生風啊!! 結果沒想到晚上實戰時就出問題了...<div><br /></div><div>接近天頂時,DEC 軸居然難得出現 "失效" 的訊息,應該是背不動了。我猜可能是因為我怕 L 架卡到架台本身,因此把 L 架裝太高,然後朝天頂時重心往後移,整組的重量乘以加長後的力矩太大,然後又全由 DEC 軸支撐的關係? </div><div><br /></div><div>看來還是得用側架了,方向改回來:</div><div><br /></div><div><br /></div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjn5-A18_wBFgUnssU0dd6OBPrNUdBHjEunvDsvZu04CufII1JfdqFuKj1paQZot7ooBQU6tdHAAvbRA9_XduXbLeHuN2W6cQLk0_3mYDffwGNuZAyngDtB8qLNj0eSWO7_Sn1Q5_6bL62hpi3t7yqe3yMlnQ9yIR1t-B_B1jQafv0dTYfwNGIgw4YE/s3021/IMG_4399.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3021" data-original-width="3021" height="320" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjn5-A18_wBFgUnssU0dd6OBPrNUdBHjEunvDsvZu04CufII1JfdqFuKj1paQZot7ooBQU6tdHAAvbRA9_XduXbLeHuN2W6cQLk0_3mYDffwGNuZAyngDtB8qLNj0eSWO7_Sn1Q5_6bL62hpi3t7yqe3yMlnQ9yIR1t-B_B1jQafv0dTYfwNGIgw4YE/s320/IMG_4399.HEIC" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjO46xwiBxxYPXF6HQXnxIoND2KmdGzAy2qWuyjfzcjb1vYRMLpykiwUXodTQtAJsGzYhA_04uGR3EIDyNpEjlIYmzsyPG8QeImt711unlwP0XSGjBh6e0N5q_j_qP8hrH2Wu9dd4MTfOuRxrMYRabVRKrhj3ic1zXkLic3bvxj0Qy9wnhF33RZd3IC/s1183/1CACBC7B-9609-4EC8-9A9B-A8125A7C38E0-33512-000016D8923A80E0.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1183" data-original-width="1183" height="320" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjO46xwiBxxYPXF6HQXnxIoND2KmdGzAy2qWuyjfzcjb1vYRMLpykiwUXodTQtAJsGzYhA_04uGR3EIDyNpEjlIYmzsyPG8QeImt711unlwP0XSGjBh6e0N5q_j_qP8hrH2Wu9dd4MTfOuRxrMYRabVRKrhj3ic1zXkLic3bvxj0Qy9wnhF33RZd3IC/s320/1CACBC7B-9609-4EC8-9A9B-A8125A7C38E0-33512-000016D8923A80E0.jpg" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEglKko197X78Xwk8BDIUf_LVyzQvYFFXW-WfWOgWK-lYvLVbZi1tDJuoeGrBFBarq2tzRQ15HYLn58XFiqV19T1Dx2UyVWfPSEwa7gCk5pKIgfMwTHaV5apaS5s7sziRRL1F7baf16YXt1Qwj2qNYCgCDM26I7Ej73MpBbldqcZCpp0bJEmlatSd-q9/s1184/AFE1F450-C8ED-45EE-87A7-DC2288CFDC7A-33512-000016D8A369739D.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1184" data-original-width="1184" height="320" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEglKko197X78Xwk8BDIUf_LVyzQvYFFXW-WfWOgWK-lYvLVbZi1tDJuoeGrBFBarq2tzRQ15HYLn58XFiqV19T1Dx2UyVWfPSEwa7gCk5pKIgfMwTHaV5apaS5s7sziRRL1F7baf16YXt1Qwj2qNYCgCDM26I7Ej73MpBbldqcZCpp0bJEmlatSd-q9/s320/AFE1F450-C8ED-45EE-87A7-DC2288CFDC7A-33512-000016D8A369739D.jpg" width="320" /></a></div><br /><div><br /><div class="separator" style="clear: both; text-align: center;"><br /></div>側架後就沒問題了,不過還是要田野實戰後才能確認,設備上許多小問題只看規格表沒用的:</div><div><br /></div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi--HWn2HyM4u6WkDHsfBCLSZY4TudYZ3D9gNu3WO6y1ABuoGllauNpYz65OjkXHutVeH8CxJuIzyqsVflFx5tNU3ezeSD0m-uUa8NN5LUpTSpdAyzz-tRLW7zOLvXAuD6c1ldeaDHAbShvTPswXktwcVbhHIP5RN7gYnsIc2oGfkBRxrOm6rWKkKhG/s1053/8BC5844B-D9AB-4BBC-9219-57C1B25A4D8A-43897-0000172D84F0238C.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1053" data-original-width="1053" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi--HWn2HyM4u6WkDHsfBCLSZY4TudYZ3D9gNu3WO6y1ABuoGllauNpYz65OjkXHutVeH8CxJuIzyqsVflFx5tNU3ezeSD0m-uUa8NN5LUpTSpdAyzz-tRLW7zOLvXAuD6c1ldeaDHAbShvTPswXktwcVbhHIP5RN7gYnsIc2oGfkBRxrOm6rWKkKhG/w400-h400/8BC5844B-D9AB-4BBC-9219-57C1B25A4D8A-43897-0000172D84F0238C.jpg" width="400" /></a></div><br /><div><br /><p>這次就很完美啦,雙眼看,就算只有 3 吋一些顯眼的深空目標看起來還是很美,尤其 1~2 度左右大小的星雲目標以及疏散星團:</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjtV32SZK6q6wgRszzgqp2ZtsdxDa-oiiFX7Z7mEmms61yOQYDKopyWrB7mTTc4g422ta4mr5dpY_s8L3orBewjUgqM9DfIn8kvX5fDNruLSVF2sG5ZTEvHIQmLZr5Kebh3KGKD4ABRKVJbgOGNZK6ZjzPSjwrjgxx348g4DUdsRogYf6Rpltp3Qq1j/s2495/IMG_4204.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2495" data-original-width="2495" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjtV32SZK6q6wgRszzgqp2ZtsdxDa-oiiFX7Z7mEmms61yOQYDKopyWrB7mTTc4g422ta4mr5dpY_s8L3orBewjUgqM9DfIn8kvX5fDNruLSVF2sG5ZTEvHIQmLZr5Kebh3KGKD4ABRKVJbgOGNZK6ZjzPSjwrjgxx348g4DUdsRogYf6Rpltp3Qq1j/w400-h400/IMG_4204.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">IC 4665 (FC-76 Matsumoto EMS binoscope; 12.5mm for 46X)<br /></td></tr></tbody></table><br /><br /></div><div>IC 4665 是在蛇夫左肩,蛇尾巴附近的疏散星團,鬆鬆散散的,好找又好認,46X 用小視野的 abbe or 12.5mm 看剛好裝在 1 度視野內。<br /><br /><br /><br /><br /><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEixdwkn2q8Jgfc0QnjPFIiYbq-5vugPAIL0OMaUgUVprxu2QfwYTjxOy0VGs67989AEKG9qz6EPE9pyH3S3nkVKnsCP2Sn8Z_Hx3CavjoIm3L3Z_N4sDMhwwhK0rDVo8evwBc9M-k2DxHgQp2tR6bAppY4w3Ga6phtc4LeBIba6iPSzIqF8AH-ILFWY/s2364/IMG_4203.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2364" data-original-width="2364" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEixdwkn2q8Jgfc0QnjPFIiYbq-5vugPAIL0OMaUgUVprxu2QfwYTjxOy0VGs67989AEKG9qz6EPE9pyH3S3nkVKnsCP2Sn8Z_Hx3CavjoIm3L3Z_N4sDMhwwhK0rDVo8evwBc9M-k2DxHgQp2tR6bAppY4w3Ga6phtc4LeBIba6iPSzIqF8AH-ILFWY/w400-h400/IMG_4203.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Collinder 350 (FC-76 Matsumoto EMS binoscope; 12.5mm for 46X)</td></tr></tbody></table><br /><div class="separator" style="clear: both; text-align: center;"><br /></div>Cr 350 也在附近,沒上個那麼明顯;南北向有一串 9 等亮左右的星星,圍著一些 10~11 等的,整體看起來更散更沒形了。</div><div><br /></div><div><br /></div><div><br /></div><div>高倍小視野才需要追蹤,那就用 2.4mm 目鏡作到 238X,0.18 度超小視野追看看:</div><div><br /></div><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjbls5Y_iV6pwKWFhQt0nRVPB0Z2s5zbj_nh4fmN83AWCOOc2aXXkJJkctDc4uvpuUKSVFmlo77zRupXJpgfkedSqGzYfUS1ulp8y8bTYW1gKynkHPtJ3zCXH4XVJmKfNFTf_OSrb6704LSo2odSdoI0HCEkZ_WDTifFr6l6S-wrqsygkqHDLspa1uA/s2240/IMG_4428.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2240" data-original-width="2240" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjbls5Y_iV6pwKWFhQt0nRVPB0Z2s5zbj_nh4fmN83AWCOOc2aXXkJJkctDc4uvpuUKSVFmlo77zRupXJpgfkedSqGzYfUS1ulp8y8bTYW1gKynkHPtJ3zCXH4XVJmKfNFTf_OSrb6704LSo2odSdoI0HCEkZ_WDTifFr6l6S-wrqsygkqHDLspa1uA/w400-h400/IMG_4428.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Collinder 419 (FC-76 Matsumoto EMS binoscope; 2.4mm for 238X)</td></tr></tbody></table><br /><div><br /></div><div>Cr 419 也是小雙筒的好目標之一,跟 M29、NGC 6910 一樣圍在天鵝十字架中心周圍,倍率太低的話只能看到幾顆亮星而已,其它的要有能看得到 11.X ~ 12.X 能力的才挖得出來。 </div><div><br /><p><br /></p><p>希望能早日帶著這組裝備上山</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgBn5Z6o_fksV7UGJWmx6ExhUA2DZkF53x9kLlGuzbe0TH0OiTOiHVb1x7ynW_bIHxjHAQfUw0fwpRdTnCckDsGi-xDh3U2wSTDoPhCYuE2BSC5UwW9zl7-I4TMV5_GgIRnfnYbgDo3BYbuc5XBtHGXFqXUqcE5a8Vxh7dRdLyzsdSJrGOxLe3Zl_RQ/s1776/77C47D79-3B02-445D-B53F-734ADBA6EEE9-43897-0000172DA3EBD8C5.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1184" data-original-width="1776" height="426" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgBn5Z6o_fksV7UGJWmx6ExhUA2DZkF53x9kLlGuzbe0TH0OiTOiHVb1x7ynW_bIHxjHAQfUw0fwpRdTnCckDsGi-xDh3U2wSTDoPhCYuE2BSC5UwW9zl7-I4TMV5_GgIRnfnYbgDo3BYbuc5XBtHGXFqXUqcE5a8Vxh7dRdLyzsdSJrGOxLe3Zl_RQ/w640-h426/77C47D79-3B02-445D-B53F-734ADBA6EEE9-43897-0000172DA3EBD8C5.jpg" width="640" /></a></div><br /><p><br /></p></div>s00639http://www.blogger.com/profile/08382086616742866311noreply@blogger.com0tag:blogger.com,1999:blog-7477593545230087753.post-32784537998179701232022-11-01T15:27:00.004+08:002022-11-01T15:34:11.401+08:00剛性十足的 16 吋 DOB 結構 -- DocTelescope<p>這是第二支請義大利 馬可先生製作的反射鏡,不過這次只作 "結構",沒鏡片,9 月底 10 月初終於完工,並順利運送抵達啦。</p><p><br /></p><p>當初大整型的緣由在這:</p><p><a href="https://s00639.blogspot.com/2022/05/30-40.html">30 公分鏡的小改與 40 公分鏡的大改</a></p><p><br /></p><p>拍照對比一下這支 16 吋鏡身體大整形前後的差異:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh67znOM_Zcuu_OAPePRxlyfaxdst6RVtz388A8haP6ViSpOcvUnZjnfrm2Fh744HRItdp6nJPgxHW9ZZiJqKUBnNZi9-HP4Z3Q1_DyxJ5PvCWHoXhL_4m1lypfRZgt-3R0gFK8w-hapqD70i4cYIZfMbsPEppzRxTpN8MOnHoJUdzV7i2erYsCB1jx/s4000/2976098C-6342-4E42-B453-E72611872B71.JPEG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="4000" data-original-width="3001" height="640" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh67znOM_Zcuu_OAPePRxlyfaxdst6RVtz388A8haP6ViSpOcvUnZjnfrm2Fh744HRItdp6nJPgxHW9ZZiJqKUBnNZi9-HP4Z3Q1_DyxJ5PvCWHoXhL_4m1lypfRZgt-3R0gFK8w-hapqD70i4cYIZfMbsPEppzRxTpN8MOnHoJUdzV7i2erYsCB1jx/w480-h640/2976098C-6342-4E42-B453-E72611872B71.JPEG" width="480" /></a></div><br /><p>我一定要先講一下到貨過程,因為實在太感謝鴻宇新竹店長阿勇了,好人一定有好報,沒有他的協助不曉得要怎樣開箱?</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgI5CZwLhvI0ZB1dshRZfGgwhDKEcHawNuLLXixKzPb1nrVnSV3_kam4l2lIXdVYNfhhzz68kQG-kL3EGZdigxgWjVbxUFya95IT5l6QSdLI2AZoEkFsdCcGbouuGW8xL-AR3c50Ethril4T6YXHAfaBaQZLFXc8Zz4Ftp7my8oZpaxxLEjUAJdAIP1/s2217/IMG_4291.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2217" data-original-width="1284" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgI5CZwLhvI0ZB1dshRZfGgwhDKEcHawNuLLXixKzPb1nrVnSV3_kam4l2lIXdVYNfhhzz68kQG-kL3EGZdigxgWjVbxUFya95IT5l6QSdLI2AZoEkFsdCcGbouuGW8xL-AR3c50Ethril4T6YXHAfaBaQZLFXc8Zz4Ftp7my8oZpaxxLEjUAJdAIP1/w231-h400/IMG_4291.JPG" width="231" /></a></div><p><br /></p><p>這次運送的兩箱共重 60 kg,馬可先生同樣釘了個堅固的木箱,然後用幾十隻螺絲釘鎖死;有了上次經驗,這次有先準備好電動起子,否則真的會拆箱拆到哭。不過 60 kg 的巨大木箱我單獨一人也沒辦法上下車,先請 DHL 的倉庫弟兄們幫我上,車當然也是阿勇借我的,我那台房車 -- 上面相片門外白色那台連想都別想。開到鴻宇新竹店門口,然後請阿勇幫我下車、拆箱、試組裝檢查,然後阿勇只是直催我趕快回家開光,他自己收拾殘局,收垃圾、分解木箱、丟回收...... 怎麼會有這麼熱心的年輕人啊? </p><p><br /></p><p>馬可先生的工與料都一流,加工也很精準;16 吋的大結構分解後拆成 4 件,最重的是 mirror box: 12.8 kg,個別每件都很容易握取,不用說帶上山,爬上我關西家屋頂都沒問題:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgxC94Qdt9GtNIDStkBvu8M3vpNYisl53zQd_N_AFHmDGzR3TyLrsXrW4nh5JZUaJpVRuREai8nrQicsczpiaduIg0FsD-oHR4z47j-jIzcDdOuK4PTreEOmoDrk9eCazk9xRA2vmi4iJV1N5uhlSrWN3Eb0S_hxVg2cG-NCVx9am6reDq1SMxr1-EW/s1888/IMG_4307.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1888" data-original-width="1888" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgxC94Qdt9GtNIDStkBvu8M3vpNYisl53zQd_N_AFHmDGzR3TyLrsXrW4nh5JZUaJpVRuREai8nrQicsczpiaduIg0FsD-oHR4z47j-jIzcDdOuK4PTreEOmoDrk9eCazk9xRA2vmi4iJV1N5uhlSrWN3Eb0S_hxVg2cG-NCVx9am6reDq1SMxr1-EW/w400-h400/IMG_4307.HEIC" width="400" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjSZ_gVh-XTfcCD8Ns0gm1Cx1QrmMjRiqsuqOnRtjEPvIp5WM2bTl6jkkoxoFfPObGYvd_FYPhvCFOrCZjjrPH6nHlibadmqzN81fkGAVtXWEHuCtMmZNuHa6dZya55XsKRN22jYyiZ1OD5SD1WZXZ03w6sxahXJGBhkEiCc4wgkx1CS7tWG6F3Hza_/s1888/IMG_4306.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1888" data-original-width="1888" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjSZ_gVh-XTfcCD8Ns0gm1Cx1QrmMjRiqsuqOnRtjEPvIp5WM2bTl6jkkoxoFfPObGYvd_FYPhvCFOrCZjjrPH6nHlibadmqzN81fkGAVtXWEHuCtMmZNuHa6dZya55XsKRN22jYyiZ1OD5SD1WZXZ03w6sxahXJGBhkEiCc4wgkx1CS7tWG6F3Hza_/w400-h400/IMG_4306.HEIC" width="400" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiQ_p9ZvVhVFjO7ol7Xc2oHpZ-VRjygr-mn_nuNY-6FnOf0KCtMGuMSHp0mv-nYr_u89J0gpOhkKgVvkPf3VrTHrwMbjz0GSqPQkmPsIbHiNczlfyFGJIxIUeUfdCNcggU_By537X45xjCxL4JeBXM4r9ytwgnR2oJjKGpjin0cala0ooJI5bp4YZ4L/s1888/IMG_4304.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1888" data-original-width="1888" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiQ_p9ZvVhVFjO7ol7Xc2oHpZ-VRjygr-mn_nuNY-6FnOf0KCtMGuMSHp0mv-nYr_u89J0gpOhkKgVvkPf3VrTHrwMbjz0GSqPQkmPsIbHiNczlfyFGJIxIUeUfdCNcggU_By537X45xjCxL4JeBXM4r9ytwgnR2oJjKGpjin0cala0ooJI5bp4YZ4L/w400-h400/IMG_4304.HEIC" width="400" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhmoQCijKhPSt6CP-uRzR8NFzCUUj2IZPiBM_0paNFJbrLwjPLhXUudkWWY3ZHqu0RlSjQK4w_U-g_rVO3nGsziMpC4b4zh9ZaYCrYim5eeFb7qiEM9O0kC9h59nGEMCBRg7et-GuUb2b0jAB-3CaaT7jOulVvh6Z7sfuY80NGNZZvHDldIn-yyxupM/s1888/IMG_4303.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1888" data-original-width="1888" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhmoQCijKhPSt6CP-uRzR8NFzCUUj2IZPiBM_0paNFJbrLwjPLhXUudkWWY3ZHqu0RlSjQK4w_U-g_rVO3nGsziMpC4b4zh9ZaYCrYim5eeFb7qiEM9O0kC9h59nGEMCBRg7et-GuUb2b0jAB-3CaaT7jOulVvh6Z7sfuY80NGNZZvHDldIn-yyxupM/w400-h400/IMG_4303.jpg" width="400" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><br /></div><br /><p>組裝也超級簡單直覺:</p><p>第一步跟第二步是組裝上鏡筒跟支架,這是目前我最花時間的步驟:</p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEipxLLnrbz95IuZ22iB5tu8VSBd4wdlDY3zOGULf9rxdIraFOctNEIWbPwijwiJeIXecYPdyZ-Jy64gdPfSSmRKoCZ0e4hb8xIL1Hz0FyC4Ns6oA_3xjPIGaX2-pz-I_n4auC_CcX8HG-y5UdzpAcKY7H51_fUt8DT8sW4Lc_2ZgqB6pPaj2n3cjb6c/s2180/IMG_4308.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2180" data-original-width="1636" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEipxLLnrbz95IuZ22iB5tu8VSBd4wdlDY3zOGULf9rxdIraFOctNEIWbPwijwiJeIXecYPdyZ-Jy64gdPfSSmRKoCZ0e4hb8xIL1Hz0FyC4Ns6oA_3xjPIGaX2-pz-I_n4auC_CcX8HG-y5UdzpAcKY7H51_fUt8DT8sW4Lc_2ZgqB6pPaj2n3cjb6c/w300-h400/IMG_4308.HEIC" width="300" /></a></div><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhrO952SeWJDRGmO-q-ntRghCC-s63KpC9dFzkb1nFvGM0F2WqneE1N4ZboeKLXw5z9LpJQEewP2eXS_jKwrk1_SfseIQhhbAJRLAGbZ9wvuNE1B0oOEK1k1nZOPO6qJ0vEIrF9lJ0sUf7bgEyspxlQhrk0iV5CapXMZhElUYT_yQfDRdQdArI1Doby/s2180/IMG_4309.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2180" data-original-width="1636" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhrO952SeWJDRGmO-q-ntRghCC-s63KpC9dFzkb1nFvGM0F2WqneE1N4ZboeKLXw5z9LpJQEewP2eXS_jKwrk1_SfseIQhhbAJRLAGbZ9wvuNE1B0oOEK1k1nZOPO6qJ0vEIrF9lJ0sUf7bgEyspxlQhrk0iV5CapXMZhElUYT_yQfDRdQdArI1Doby/w300-h400/IMG_4309.HEIC" width="300" /></a></div><br /><p>第三步是組合 rocker box 與 mirror box,其實只是後者放在前者上面而已,不用鎖也不用卡,放上去就好其他什麼事都不用做:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgiGtq9IhH6PoSeoTAYWHpZWz8lcrrhZFwE3834Xj0CxvqFOjYL7h1Ub1DGeUVLyxcTi_cB47DowdSZmxaNYA-xh8OKPml_1Hh6dqbUJxkw47zUICf9I05WVbFDXcd8IgOwzd9lK1pkFOBLpcF4Lq8so5wGcGIU1Hr_rjzY--kMdrxez_jwrgTrRwQ2/s2180/IMG_4310.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2180" data-original-width="1636" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgiGtq9IhH6PoSeoTAYWHpZWz8lcrrhZFwE3834Xj0CxvqFOjYL7h1Ub1DGeUVLyxcTi_cB47DowdSZmxaNYA-xh8OKPml_1Hh6dqbUJxkw47zUICf9I05WVbFDXcd8IgOwzd9lK1pkFOBLpcF4Lq8so5wGcGIU1Hr_rjzY--kMdrxez_jwrgTrRwQ2/w300-h400/IMG_4310.HEIC" width="300" /></a></div><br /><p><br /></p><p>第四步... 其實這不算步驟,只是把兩組裝好的東西放旁邊而已:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjyRtpsi910Dd4hbjbMJ7ankqyhWgqgeSUg3ZTtUlMpjpUR7I16sxbt2rXI0EL3Keu0N7WRAWdgtnd7CvaWjkKL9z484JMFi5Yt_nYOd1w4mDqdRWsH1M69VRly9dbZTkAzV_viEzyznyKoneyknNXvnSHe5cqwrOCtUEH09GUPbEmddIxih0mkIcfm/s2180/IMG_4311.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2180" data-original-width="1636" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjyRtpsi910Dd4hbjbMJ7ankqyhWgqgeSUg3ZTtUlMpjpUR7I16sxbt2rXI0EL3Keu0N7WRAWdgtnd7CvaWjkKL9z484JMFi5Yt_nYOd1w4mDqdRWsH1M69VRly9dbZTkAzV_viEzyznyKoneyknNXvnSHe5cqwrOCtUEH09GUPbEmddIxih0mkIcfm/w300-h400/IMG_4311.HEIC" width="300" /></a></div><div><br /></div><div><br /></div><div>第五步是裝主鏡,也是放上去就好,不用鎖也不用卡,放上去就好其他什麼事都不用做:</div><div><br /></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh_wUAuIYo92-5DMOyqjXHGoOr8dO0YwMafldPqg71Yt9QY4Ddrnka_fcGkLEOcUdMufSiGYpU00D87dLq4HBlb76qIOA4HDSFYLMvwO0EhCFP1LYwK44RdYxTzC3wPQEzBeGQ6KdgA70Odz8aG4kogezWrQ8JrfQKPZUR11DBMqRo0oRHTEtLbKyPe/s2180/IMG_4312.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2180" data-original-width="1636" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh_wUAuIYo92-5DMOyqjXHGoOr8dO0YwMafldPqg71Yt9QY4Ddrnka_fcGkLEOcUdMufSiGYpU00D87dLq4HBlb76qIOA4HDSFYLMvwO0EhCFP1LYwK44RdYxTzC3wPQEzBeGQ6KdgA70Odz8aG4kogezWrQ8JrfQKPZUR11DBMqRo0oRHTEtLbKyPe/w300-h400/IMG_4312.HEIC" width="300" /></a></div><div><br /></div><div><br /></div><div>最後一步是組合起來,然後鎖上四支手轉螺絲,就全部完工了,是不是超簡單?</div><div><br /></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhgNsIzrr48swYcIeURPV46-w8NmnjFKBEBk7QNCEqlKF2IyAqe_NEgta4vwQuf5y--sAfBR5T9a79czdCWjoL7FSgqKw7M1RigLwOOGMYo0Yo66RyUr5lkMzd23oNCSlfr0IAG9ZFWAbyxYAs9s7QjJPKcW0uJPJ6G7dGygpN18KyoI0HSH7TfK4t8/s2180/IMG_4313.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2180" data-original-width="1636" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhgNsIzrr48swYcIeURPV46-w8NmnjFKBEBk7QNCEqlKF2IyAqe_NEgta4vwQuf5y--sAfBR5T9a79czdCWjoL7FSgqKw7M1RigLwOOGMYo0Yo66RyUr5lkMzd23oNCSlfr0IAG9ZFWAbyxYAs9s7QjJPKcW0uJPJ6G7dGygpN18KyoI0HSH7TfK4t8/w300-h400/IMG_4313.HEIC" width="300" /></a></div><br /><p><br /></p><p>目前對我來說只有第一、二步驟還有些障礙,可能還不熟練,也可能支架還新有點卡卡的... 這步驟花比較多時間;不過組裝好後,上鏡筒與支架就沒再拆下來過,因此未來可能會更不熟練了。但如果沒有要上車帶出門,只在家裡用,是不用拆下來啦,也不會想拆下來,扛上屋頂也不用拆。</p><p><br /></p><p>主鏡的 support 機制因為習慣 12 吋那支了,因此對這種僅靠重力支撐的 support 機制不覺得有麼奇怪之處:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgr8FtX6eGoOFYLoRjjY3FbHGWF8Z6WI0Eyfq_nwvMr2XUL7feQ3CKTZwy_kq8m7jdZ5Pq9qMktuULzLV3jvw00d-G1qemZlxUPHblq9Hzd1vKE3mHflGoe9P6I9nq10jebhpYX_eGXxZ6KJ7uOQT0VvBhh6Rzh_d9Aabm4bRoN9rbaON-1dfzBy3jD/s4032/IMG_4299.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3024" data-original-width="4032" height="300" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgr8FtX6eGoOFYLoRjjY3FbHGWF8Z6WI0Eyfq_nwvMr2XUL7feQ3CKTZwy_kq8m7jdZ5Pq9qMktuULzLV3jvw00d-G1qemZlxUPHblq9Hzd1vKE3mHflGoe9P6I9nq10jebhpYX_eGXxZ6KJ7uOQT0VvBhh6Rzh_d9Aabm4bRoN9rbaON-1dfzBy3jD/w400-h300/IMG_4299.HEIC" width="400" /></a></div><br /><p><br /></p><p>16 吋主鏡用的是 18 點浮動支撐,支撐架其實有很大空間可以調上下,難怪馬可先生不怕我主鏡焦長量不準。</p><p><br /></p><p>至於我最在意的 "平衡" 呢?</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjq8Gd4zyfYx-dC_hYlkU8-PgGmItvMJxLAWCKHv3Cx9av17U0aK_pIBSWBuwIRHet_pydvscY_TnMZUL34vFdV525Slka33guHBOTeWfHWgc6_K9dHJ7HVFeZhYZqphwYVsXxFujY9-rBs7f6IAwmBopaVhadX0ByTJUGoltOpCKeL_0Fa3oS9ot3a/s4032/IMG_4328.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3024" data-original-width="4032" height="300" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjq8Gd4zyfYx-dC_hYlkU8-PgGmItvMJxLAWCKHv3Cx9av17U0aK_pIBSWBuwIRHet_pydvscY_TnMZUL34vFdV525Slka33guHBOTeWfHWgc6_K9dHJ7HVFeZhYZqphwYVsXxFujY9-rBs7f6IAwmBopaVhadX0ByTJUGoltOpCKeL_0Fa3oS9ot3a/w400-h300/IMG_4328.HEIC" width="400" /></a></div><br /><p><br /></p><p>完全沒問題,這也是我最驚豔的部分。之前用過幾支不同、所謂 "ultralight" 結構的 DOB,"平衡" 總是無法與其輕量的特性並存,觀測角度低到一定程度就開始垂頭,但這支不會;也許是馬可先生做過很精密的調校測試? 也許只是把仰角的阻尼弄得夠緊而已? 仰角阻尼弄很緊雖然也是一個方法,不過可以想像當阻尼太緊時微調一定不順,但我現在發現成功的關鍵可能在 "整體結構剛性";因為阻尼緊就要用點力推,如果剛性不佳推起來就會 QQ 的,當然就難以順暢微調。以這支的剛性與阻尼而言,我覺得相當剛好,目前幾次 400X 以上微調都算順暢,而且不用擔心換目鏡時平衡跑掉,所以不用煞車也不用重錘平衡,真是太好了,連用雙目視平衡都很 OK!</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhV2OUG6ioX7W97XgKLXIjjgfur9BG1Heom61KMp9CtNb6uVXH4Si7Z_zahk1OOyqrPrWTzoF7VzeXeU6ig348P3y-6HHkPb_sODHuh2eTQyMjnqQK2qdNXac1Ye6Oa4onVAF_dtejSpGZpBGOSl79rrYusufcJczeCnVMTuJJcKtFdGg6jbxYGwwot/s1776/C54447F8-B4CE-4C4B-9249-FE1FF483D852-30465-00000FD36916D8D8.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1184" data-original-width="1776" height="266" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhV2OUG6ioX7W97XgKLXIjjgfur9BG1Heom61KMp9CtNb6uVXH4Si7Z_zahk1OOyqrPrWTzoF7VzeXeU6ig348P3y-6HHkPb_sODHuh2eTQyMjnqQK2qdNXac1Ye6Oa4onVAF_dtejSpGZpBGOSl79rrYusufcJczeCnVMTuJJcKtFdGg6jbxYGwwot/w400-h266/C54447F8-B4CE-4C4B-9249-FE1FF483D852-30465-00000FD36916D8D8.jpg" width="400" /></a></div><br /><p><br /></p><p>剛性好的優點很多,能把調準的光軸維持得很好是其中最重要的一點;我收過的兩支馬可先生製作的鏡子,對焦座與次鏡位置的準直都是送來就是完美狀態,完全不用調整:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhWzfr4A41nALKZl_z-qOlCLa5i_ZEXTtV6hg974SB-B-yF3ag9rA2h9VEEy_82aMSX008LyP0JmbKL9VnsmUMuwfZHVaheZ-8A6iy8UYG2048p_DA8aRkYpoNh3D7YyYRzVHLa468su4n8RDiN2GPweJgcYwKOadodBlEulYIMzq4OFUqYL8lqQcn1/s3023/IMG_4326.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3023" data-original-width="3023" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhWzfr4A41nALKZl_z-qOlCLa5i_ZEXTtV6hg974SB-B-yF3ag9rA2h9VEEy_82aMSX008LyP0JmbKL9VnsmUMuwfZHVaheZ-8A6iy8UYG2048p_DA8aRkYpoNh3D7YyYRzVHLa468su4n8RDiN2GPweJgcYwKOadodBlEulYIMzq4OFUqYL8lqQcn1/w400-h400/IMG_4326.HEIC" width="400" /></a></div><br /><p><br /></p><p><br /></p><p>萬事俱備,就等天黑來開光囉:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhtoA9E5G-Xvg64lYr_xsNRqt-t6RwQtUa8Qz8elT7eGKjfO8xoaQroBAZ2LpwiBD4L7Xnc71nzwmHLGALZX69LlERdk-cXI_5vzBWNAguBTuFzgBJYzXbigIUc_omlIAXcNkaVXt0ysGpQQrpl7y33a469NBfsBAfhbgJbgOpjgzNGFPHSZj2n_nqi/s4032/IMG_4319.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="4032" data-original-width="3024" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhtoA9E5G-Xvg64lYr_xsNRqt-t6RwQtUa8Qz8elT7eGKjfO8xoaQroBAZ2LpwiBD4L7Xnc71nzwmHLGALZX69LlERdk-cXI_5vzBWNAguBTuFzgBJYzXbigIUc_omlIAXcNkaVXt0ysGpQQrpl7y33a469NBfsBAfhbgJbgOpjgzNGFPHSZj2n_nqi/w300-h400/IMG_4319.HEIC" width="300" /></a></div><br /><p><br /></p><p>40 公分鏡看 M57 是一個大環,環的粗細及層次輕鬆可見;M13 星點幾乎是粒粒鮮明,都快要有疏散星團的感覺了;下面這張是後來畫的,之前 16 公分折射鏡看得有些心虛的行星狀星雲 NGC 6813</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgBN8noFxLA21PgkK4qhdEvPONiTqOLZ4XlAjTyYHPLekKM3ylvOJN7kKoXPrHyYr7ZRsCBoNHo70aKbZE97kR0OxhOtrlzL0fEBYPuawWStF-ZbcJEzpZPgdXULN6NKX6xTvI0wRhHiqM9qcWaSWpY1tSqxcBj0n66qJXWuz3_8Ew94MYLbImi8mzr/s2547/IMG_4364.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2547" data-original-width="2547" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgBN8noFxLA21PgkK4qhdEvPONiTqOLZ4XlAjTyYHPLekKM3ylvOJN7kKoXPrHyYr7ZRsCBoNHo70aKbZE97kR0OxhOtrlzL0fEBYPuawWStF-ZbcJEzpZPgdXULN6NKX6xTvI0wRhHiqM9qcWaSWpY1tSqxcBj0n66qJXWuz3_8Ew94MYLbImi8mzr/w400-h400/IMG_4364.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 6813 (406/1800mm Dob; 4.7mm for 390X or 10mm for 180X + O III filter)</td></tr></tbody></table><br /><p><br /></p><p>當時沒有仔細去找雲氣裡的一個小黑點暗星雲,核心清楚雲氣向四週散,感覺就像一般的星雲而已,看不出什麼行星狀星雲對稱、中空環... 之類的特徵。</p><p><br /></p><p>手動尋星沒問題,問題在目標在天頂附近時我不夠高了 >"<,試過幾種增高的方法後目前覺得這個最好:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj04VDfKAho9D8vcP90T-4M7teplxmQfxpVWWHFcgh5ScAXqe6_qQ2q62pNjid-IbRbuZOynPF_0L1oX7O7MCRNZnzeHKmAW5c57rBgULVk5bFRVFsps3tI7FpZFUt4Un3adha1Lk7anSTFiE7Bhspzlvo8mJMxvglK3GJ1jXnEzVKP6OQd5RdPBDvG/s2180/IMG_4353.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2180" data-original-width="1635" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj04VDfKAho9D8vcP90T-4M7teplxmQfxpVWWHFcgh5ScAXqe6_qQ2q62pNjid-IbRbuZOynPF_0L1oX7O7MCRNZnzeHKmAW5c57rBgULVk5bFRVFsps3tI7FpZFUt4Un3adha1Lk7anSTFiE7Bhspzlvo8mJMxvglK3GJ1jXnEzVKP6OQd5RdPBDvG/w300-h400/IMG_4353.HEIC" width="300" /></a></div><br /><p>因為反正板車外出時都會帶,然後它可站立的面積又夠大,高度對我來說也差不多剛好;雖然帶輪子有滑動的風險,不過自己用過幾次後覺得還 OK,動作不要太急躁就好。</p><p><br /></p><p>當然也可以跟以前一樣這麼作:</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjvnc7c_JMhyGmmUop6KHGlia4ABUBDzwjJfTd5npH5l90iVHKFRd9MtliGs486vmzjSH6npt96TA-zVbztqGbaxeLlzFOfPCZAEhdHwwXreR84pK_Z0Is_YeZrMu-zwlAnxVcxHi1K5vihKkpyVAbScBOEUNMJalH6LXpMdOAJwQJaFbsIzNCJhED1/s1888/IMG_4327.HEIC" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1888" data-original-width="1888" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjvnc7c_JMhyGmmUop6KHGlia4ABUBDzwjJfTd5npH5l90iVHKFRd9MtliGs486vmzjSH6npt96TA-zVbztqGbaxeLlzFOfPCZAEhdHwwXreR84pK_Z0Is_YeZrMu-zwlAnxVcxHi1K5vihKkpyVAbScBOEUNMJalH6LXpMdOAJwQJaFbsIzNCJhED1/w400-h400/IMG_4327.HEIC" width="400" /></a></div><br /><p>讓對焦座稍微朝下方這樣就不用墊梯子了;可以是可以啦,不過如此一來目鏡視野的星點位置方向有點怪...... 怎麼說呢? 就是手機的電子星圖總是要轉個 90 度、100 多度,雖說星點位置是 "相對" 的概念,確認兩到三顆星位置後手動移動方向就不會錯,不過就是感覺不自然...... 所以最後我還是採用目鏡座 45 度朝上的方向,墊高就墊高,沒關係。</p><p><br /></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi0E3sLMril8fNGQ1CU5082qTLcmAvRiWuL7dSPgtYjBIWBLzWs7Y4et4bMsO5VgUYtxLw0uR6L21c_EKYJAPymhxLyebSymjT_fPfk7ZKnyEQZIgqidi_EPEW8zYUDBys_qDv-Kni6fIG3l9r-arU-mku5U0AXMiDCOH9dJypamV91LS_LT62Km34q/s2756/IMG_4427.JPG" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2625" data-original-width="2756" height="381" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi0E3sLMril8fNGQ1CU5082qTLcmAvRiWuL7dSPgtYjBIWBLzWs7Y4et4bMsO5VgUYtxLw0uR6L21c_EKYJAPymhxLyebSymjT_fPfk7ZKnyEQZIgqidi_EPEW8zYUDBys_qDv-Kni6fIG3l9r-arU-mku5U0AXMiDCOH9dJypamV91LS_LT62Km34q/w400-h381/IMG_4427.JPG" width="400" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">NGC 7789 (406/1800mm Dob; 10mm for 180X)</td></tr></tbody></table><br /><p>這是久違的卡洛琳玫瑰,也是我個人很喜歡的目標之一,能在自家陽台用大口徑彌補沒時間上山享用暗空的遺憾也不錯啦。</p><p><br /></p><p>大鏡子用起來當然很過癮,不過天下終究沒白吃的午餐,除了要花心力... 或花錢改善其可用性讓它更親切一點外,比如主鏡需要長時間熱平衡、seeing 對大口徑的影響、風大時的抖晃... 等無可避免的物理因素都要有心裡準備承受。我以前不太在意熱平衡,覺得反正都看視野中央,邊邊的性能就隨便吧! 不過後來 12 吋那支用了零膨脹係數的玻璃,其快速反應立即上線的優勢再對比這支慢吞吞的 16 吋傳統玻璃,就開始不斷嘆氣了。</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiAGqQvthfjCs9rVxYHTCKrBsNhAcEKUFgRzm8tsDYQvsATZrMieSg3yjSZsIc0-g9cEna3024G55jydDqAdHp-Nj1VY3N_7ScfFM-4rFWLQBv1HyKzOi5ADeeAJTiBSxJUctzmHPfjlm96VLrEo3O2zxtBoOKT3q8FLlAgH8l9T_tUN3beQZsX3rKk/s1776/CC6048C9-F38C-4884-818E-B8F5B21BD662-45390-0000185D2B5284B5.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1776" data-original-width="1184" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiAGqQvthfjCs9rVxYHTCKrBsNhAcEKUFgRzm8tsDYQvsATZrMieSg3yjSZsIc0-g9cEna3024G55jydDqAdHp-Nj1VY3N_7ScfFM-4rFWLQBv1HyKzOi5ADeeAJTiBSxJUctzmHPfjlm96VLrEo3O2zxtBoOKT3q8FLlAgH8l9T_tUN3beQZsX3rKk/w266-h400/CC6048C9-F38C-4884-818E-B8F5B21BD662-45390-0000185D2B5284B5.jpg" width="266" /></a></div><br /><p><br /></p><p>風大的影響也是最近才有較深刻的體會;因為有幾次操作總覺得高倍時對不準焦,明明光軸就調準了,星點也沒彗尾,難道是主鏡精度太差? 但冷靜下來想想,之前不會,而且換過身體後有時候也不會,曾經上到 5、600X 星點也夠細呀? 當晚稍後用折射鏡試也發生同樣狀況,才發現是風大以及 seeing 的影響;鏡子一大,受風面積大,風吹之後其實鏡筒是不斷微小震動的。</p><p><br /></p><p>好吧,我也大概只能寫出這種 review 了,真對不起 馬可先生,因為他催我好久寫 review,結果寫完連自己看了都覺得沒什麼料 ^^"</p><p><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhJTrctGU4QYqS9nhn3tSKNj0T8FBJnaqfM6WdCHRZwpfzUJKtGMREjBIi6PLROZpCtDC8plqAzJsDyIiIRVQpz13bliZtOmvgvP4gFJH7S94Qyya7XRLcfk9_vIOGT_567QTwggQokzqKORQ68JuHD4R0aWOH1B7B8lyQGGAWYVyGr0P6uznIm5GRX/s1776/3622CB68-B993-43D5-BCE1-C2E3BB388DDC-26914-00000DDF757D7211.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1776" data-original-width="1184" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhJTrctGU4QYqS9nhn3tSKNj0T8FBJnaqfM6WdCHRZwpfzUJKtGMREjBIi6PLROZpCtDC8plqAzJsDyIiIRVQpz13bliZtOmvgvP4gFJH7S94Qyya7XRLcfk9_vIOGT_567QTwggQokzqKORQ68JuHD4R0aWOH1B7B8lyQGGAWYVyGr0P6uznIm5GRX/w266-h400/3622CB68-B993-43D5-BCE1-C2E3BB388DDC-26914-00000DDF757D7211.jpg" width="266" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj5-gkDs0oamvWeljgDgYTeBeJ_y17UxFxtTeFfygxL9Rywb-qqMkgfCUWQ51NI99OGFUeDUiCbRPDSdkF2TS2PVsUIWTIxRUcNZQzfsNJUQ_S7lOakGM-DDpnB9Cs6VHdi_xOodf7UuBS_67jRWRnbb7w367P05Dj5L76knoa1Ks6cT6w01XGDiuJn/s1776/97A135AC-4972-4496-9F2C-9032AB7BE3EE-26914-00000DDF5C1C7200.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1776" data-original-width="1184" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj5-gkDs0oamvWeljgDgYTeBeJ_y17UxFxtTeFfygxL9Rywb-qqMkgfCUWQ51NI99OGFUeDUiCbRPDSdkF2TS2PVsUIWTIxRUcNZQzfsNJUQ_S7lOakGM-DDpnB9Cs6VHdi_xOodf7UuBS_67jRWRnbb7w367P05Dj5L76knoa1Ks6cT6w01XGDiuJn/w266-h400/97A135AC-4972-4496-9F2C-9032AB7BE3EE-26914-00000DDF5C1C7200.jpg" width="266" /></a></div><br /><p><br /></p>s00639http://www.blogger.com/profile/08382086616742866311noreply@blogger.com2