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Light scatter
My galaxy captures have an annoying ring around the outside of the frame. Nebula captures don't show, or at least it's very hard to discern this ring. I've attached a shot trying to show what I mean but you can see it better in PI .xisf files (which I will attach if anyone wants them).
My guess is this ring is caused by light scatter because I'm imaging from my backyard and neighbor's lights, street lights and even moonlight can contribute.
I can eliminate my calibration frames because the ring is in individual subs as well. What do you guys think, light scatter, or am I barking up the wrong tree?
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