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Old 26-11-2018, 09:15 AM
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sil (Steve)
Not even a speck of dust

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Join Date: Jun 2012
Location: Canberra
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Quote:
Originally Posted by Paulyman View Post
There is definitely a lot hidden in the background but it comes at the expense of noise, which I haven't learned to properly reduce yet.
More subs, thats exactly the point of lots of subs: gathering as much of that "hidden" signal even if you cant see it in a sub, its there buried deep. Stacking then strengthens that signal and suppresses the noise allowing you to stretch the signal further before the noise comes to the front again.

You should also look into using masks, eg using the lightness channel from your integration as a mask to allow you to stretch the faint structure forward. Run noise reduction or even a blur on the mask and subtract a star mask and region mask to protect stars and nebula core. But more subs even from different nights, will immediately help you out with your current processing workflow.
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