steveyzh
发表于 2011-3-17 19:03
M73 (NGC6994): Takahasi Epsilon 180 f/2.8 telescope, Canon 20da camera; three 5-min exposures median combined
http://www.3towers.com/Canon/Takahashi/MessierObjects/M73_Combined%20FilesMED.jpg
steveyzh
发表于 2011-3-17 19:08
回复 80# 丶Me乄吥壞
哎。。。就是给你2米口径的望远镜目视，星云都是一片白芒芒的雾气，
人眼是没有光线累积成像功能的。
必须用单反相机或专业冷冻CCD，长时间曝光，星云的颜色才能累积显示出来，
多看看论坛相关介绍吧。。。
steveyzh
发表于 2011-3-17 19:10
http://www.3towers.com/Canon/Takahashi/MessierObjects/M74_Combined%20FilesMED.jpg
M74 (NGC628: Takahasi Epsilon 180 f/2.8 telescope, Canon 20da camera; three 5-min exposures median combined
steveyzh
发表于 2011-3-17 19:16
http://www.3towers.com/Canon/Takahashi/MessierObjects/M76_Combined%20FilesMED.jpg
M76 (NGC650, NGC651): Takahasi Epsilon 180 f/2.8 telescope, Canon 20da camera; three 5-min exposures median combined
http://www.3towers.com/QSI/MessierObjects/m76color.jpg
steveyzh
发表于 2011-3-17 19:17
http://www.3towers.com/Canon/Takahashi/MessierObjects/M77_Combined%20FilesMED.jpg
M77 (NGC1068); (Arp37); also show left to right NGC1090, NGC1087, and NGC1055: Takahasi Epsilon 180 f/2.8 telescope, Canon 20da camera; three 5-min exposures median combined
http://www.3towers.com/ap7/ap7arpJPG/arp37(m77).jpg
steveyzh
发表于 2011-3-17 19:18
http://www.3towers.com/Canon/Takahashi/MessierObjects/M81_Combined%20FilesMED.jpg
M82, M81, and NGC3077: Takahasi Epsilon 180 f/2.8 telescope, Canon 20da camera; Six 10-min exposures median combined
http://www.3towers.com/FingerLakes/FingerLakesMessier/m81color.jpg
steveyzh
发表于 2011-3-17 19:19
http://www.3towers.com/Canon/Takahashi/MessierObjects/M83_Combined%20FilesMED.jpg
M83 (NGC5236): Takahasi Epsilon 180 f/2.8 telescope, Canon 20da camera; Three 5-min exposures median combined
http://www.3towers.com/FingerLakes/FingerLakesMessier/m83color.jpg
Hvězdami
发表于 2011-3-17 19:20
::070821_07.jpg::::070821_07.jpg::
steveyzh
发表于 2011-3-17 19:20
http://www.3towers.com/Canon/Takahashi/Markarian_Chain_Combined_Labeled.jpg
Markarian Galaxy Chain: Takahasi Epsilon 180 f/2.8 telescope, Canon 20da camera; Ten 10-min exposures median combined.
http://www.3towers.com/MeadeLXD55/Markarian_Combined%20FilesAVG.jpg
steveyzh
发表于 2011-3-17 19:22
http://www.3towers.com/Canon/Takahashi/MessierObjects/M92_Combined%20FilesMED.jpg
M92 (NGC6341): Takahasi Epsilon 180 f/2.8 telescope, Canon 20da camera; three 5-min exposures median combined
http://www.3towers.com/FingerLakes/FingerLakesMessier/m92color.jpg
steveyzh
发表于 2011-3-17 19:23
http://www.3towers.com/Canon/Takahashi/MessierObjects/M95_Combined%20FilesMED.jpg
NGC3384, M105, NGC3389, M96, M95:Takahasi Epsilon 180 f/2.8 telescope, Canon 20da camera; Three 5-min exposures median combined
http://www.3towers.com/FingerLakes/FingerLakesMessier/m95color.jpg
steveyzh
发表于 2011-3-17 19:25
http://www.3towers.com/Canon/Takahashi/M101_Combined%20FilesMED.jpg
M101: Takahasi Epsilon 180 telescope, Canon 20da camera; Five 10-min exposures median combined
http://www.3towers.com/FingerLakes/FingerLakesMessier/m101color.jpg
steveyzh
发表于 2011-3-17 19:26
http://www.3towers.com/Canon/Takahashi/MessierObjects/M95_Combined%20FilesMED.jpg
NGC3384, M105, NGC3389, M96, M95:
Takahasi Epsilon 180 f/2.8 telescope, Canon 20da camera; Three 5-min exposures median combined
http://www.3towers.com/FingerLakes/FingerLakesMessier/m105color.jpg
steveyzh
发表于 2011-3-17 20:00
其它NGC，IC天体
http://www.3towers.com/Canon/Takahashi/NGC_IC_Objects/ic5146_Combined%20FilesMED.jpg
Cocoon Nebula (IC5146): Takahasi Epsilon 180 f/2.8 telescope, Canon 20da camera; Six 10-min exposures median combined
http://www.3towers.com/FingerLakes/FingerLakesNGC/Caldwell19(IC5146).jpg
steveyzh
发表于 2011-3-17 20:03
http://www.3towers.com/QSI/ICandOtherMiscObjects/Rosette_QSI.jpg
Rosette Nebula (NGC2237): Takahashi Epsilon 180 f/2.8 telescope, QSI 532 CCD, 5-min combined exposures through hydrogen alpha (6 exposures), red, green, and blue filters, respectively
http://www.3towers.com/QSI/ICandOtherMiscObjects/Rosette_Ha.jpg
steveyzh
发表于 2011-3-17 20:05
http://www.3towers.com/Canon/Takahashi/NGC_IC_Objects/ngc2903_Combined%20FilesMED.jpg
NGC2903: Takahasi Epsilon 180 f/2.8 telescope, Canon 20da camera; Three 10-min exposures median combined
http://www.3towers.com/aP7/ap7ngcJPG/ngc2903.jpg
steveyzh
发表于 2011-3-17 20:07
http://www.3towers.com/Canon/Takahashi/NGC_IC_Objects/ngc6589_Combined%20FilesMED.jpg
NGC6589,6590; IC1283, 1284, 4700: Takahasi Epsilon 180 f/2.8 telescope, Canon 20da camera; Three 5-min exposures median combined
steveyzh
发表于 2011-3-17 20:08
http://www.3towers.com/Canon/Takahashi/NGC_IC_Objects/ngc7023_Combined%20FilesMED.jpg
Caldwell 4 (NGC7023): Takahasi Epsilon 180 f/2.8 telescope, Canon 20da camera; Three 5-min exposures median combined
http://www.3towers.com/FingerLakes/FingerLakesNGC/Caldwell4(ngc7023).jpg
steveyzh
发表于 2011-3-17 20:10
http://www.3towers.com/QSI/ICandOtherMiscObjects/Horsehead_QSI_labeled.jpg
Horsehead Nebula (IC434): Takahashi Epsilon 180 f/2.8 telescope, QSI 532 CCD, 5-min combined exposures through hydrogen alpha (6 exposures), red, green, and blue filters, respectively
http://www.3towers.com/Canon/Takahashi/Horsehead.jpg
Horsehead Nebula (IC434): Epsilon 180 telescope, Canon 20da camera
steveyzh
发表于 2011-3-17 20:11
http://www.3towers.com/Canon/Takahashi/NGC_IC_Objects/ic2177_Combined%20FilesMED.jpg
IC2177; The Seagull Nebula: Takahasi Epsilon 180 f/2.8 telescope, Canon 20da camera; Six 10-min exposures median combined