Quote:
Originally Posted by ralph1
Thanks for the advice Cam. I don't think it's light pollution as there is only one light dome and it is to the southeast while I was looking north. It tends to appear on the side of the sky closest to the horizon but that occurs all the way around the sky. Somehow I always image things low in the sky so that probably doesn't help.
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It probably goes without saying, but try to wait for these objects to get as high as possible before imaging them. When you are stacking/stretching faint images it doesn't take much haze or fog to get lit up by any terrestrial lights that are around and ruin an otherwise good image.
It might be worth stretching a few subs and seeing if there is some cloud that only appears in a few of them. You can then biff those out and reprocess the stack.