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M104 The Sombrero Galaxy

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Thread started 28 Apr 2012 (Saturday) 21:06   
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NovaTJ
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I know this image is not near as nice as Megrac's from a couple days ago, but decided to post it anyway. The ED80 just doesn't have the light gathering of a medium size reflector. One hour 21 minutes of lights at 3 minute exposure, 40 darks, and forty flats. No bias or dark flats were used in the processing as they tended to create lines in the background. Comments good or bad are welcome.....Greg

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Post #1, Apr 28, 2012 21:06:22


Astro-Tech 8" f/4 imaging Newtonian,Baader MPCC,Orion ED 80 APO F7.5,Skywatcher EQ-6 Pro,ASGT, Modified Canon 50D, Meade DSI Guide Camera, 8" SCT dovetail mounted relic, Criterion Dynascope RV-6, modified 300D, custom astro shed,and still just getting started!

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SteveInNZ
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I think that M104 is one of those things that we've seen so many good images of that we forget how small and difficult it is.
Your image desperately needs a color balance adjustment.

Post #2, Apr 28, 2012 21:57:13


"Treat every photon with respect" - David Malin.

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megrac
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Yes it is a very tricky one.

Post #3, Apr 29, 2012 00:03:56


60D | Canon 15-85 | Canon 200mm f/2.8L II | Canon 400mm f/5.6L | 580EX II. And a heap of Astrophotography gear.

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NovaTJ
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SteveInNZ wrote in post #14345812external link
I think that M104 is one of those things that we've seen so many good images of that we forget how small and difficult it is.
Your image desperately needs a color balance adjustment.

Thanks Steve, here is what I had to work with. Perhaps I need to not balance, but reduce the green?

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Post #4, Apr 29, 2012 08:56:38


Astro-Tech 8" f/4 imaging Newtonian,Baader MPCC,Orion ED 80 APO F7.5,Skywatcher EQ-6 Pro,ASGT, Modified Canon 50D, Meade DSI Guide Camera, 8" SCT dovetail mounted relic, Criterion Dynascope RV-6, modified 300D, custom astro shed,and still just getting started!

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NovaTJ
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megrac wrote in post #14346244external link
Yes it is a very tricky one.

Tell me about it! This image is one of maybe a dozen attempts to get close to what I wanted. Reprocessed the stack in DSS several different ways trying 2x drizzle and 3x drizzle, bias or no bias, added 14 more darks, tried selecting only the best lights for the stack. Tricky is an understatement Raymond...:)

Greg

Post #5, Apr 29, 2012 09:03:58


Astro-Tech 8" f/4 imaging Newtonian,Baader MPCC,Orion ED 80 APO F7.5,Skywatcher EQ-6 Pro,ASGT, Modified Canon 50D, Meade DSI Guide Camera, 8" SCT dovetail mounted relic, Criterion Dynascope RV-6, modified 300D, custom astro shed,and still just getting started!

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MidnightSun
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Looks pretty good just the same......

Post #6, May 03, 2012 19:25:18


Dave
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Astro Setup / Midnight Sun Astrophotographyexternal link

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NovaTJ
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MidnightSun wrote in post #14375622external link
Looks pretty good just the same......

Thanks!

Post #7, May 04, 2012 20:06:41


Astro-Tech 8" f/4 imaging Newtonian,Baader MPCC,Orion ED 80 APO F7.5,Skywatcher EQ-6 Pro,ASGT, Modified Canon 50D, Meade DSI Guide Camera, 8" SCT dovetail mounted relic, Criterion Dynascope RV-6, modified 300D, custom astro shed,and still just getting started!

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M104 The Sombrero Galaxy
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