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Old 19-03-2011, 04:30 PM
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OzRob (Rob)
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Join Date: May 2009
Location: Thailand
Posts: 446
Quote:
Originally Posted by Paul Haese View Post
Rob, this object is pretty tough at the best of times. I ended up doing nearly 16 hours of integration time on this object to get it close to what I wanted. I reprocessed this around 12 times before I was happy.

It is really dim and requires far deeper subs than those you have taken. I went with 20 minutes on lum and blue and 15 minutes on red and green. This at least gives a better background ADU to work with and helps prevent noise such as what you are trying to deal with now.

That said the image contains nice data and if you go to this site http://www.mistisoftware.com/astronomy/Process_m8.htm there is a technique that deals with background noise control. Try using that to change the level of noise. I find it works a treat but have modified the technique a little to suit myself.
Thanks, maybe I'm expecting too much.
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