NGC 281 Pacman Nebula

Thanks for the advice) When I process the stars separately from the nebula, I often get artifacts from starnet++ or noise around the stars. My stars always lose their color. I always shoot through a filter since I'm in the city. In this photo, I'm more concerned about the background. It seems to have patches of light and dark. I've seen this in others' work too. I haven't figured out how to fix it yet.

First: don't hesitate to touch up the background after star removal using brushes, cloning, and other tools. It's not a crime! Second, regarding the background—try the free program GraXpert: https://www.graxpert.com/

And what filter do you shoot through? I also mostly shoot from the city. I use classic narrowband filters: OIII, Ha, SII. I gave up on CLS a long time ago after the city replaced mercury streetlights with LEDs.

Since I have a color camera, I use an l-eXtreme filter. The oxygen signal often needs to be boosted, as there's no way to capture it separately.

Thanks, I'll take a look))

There is a topic on the astronomy forum:
https://astronomy.ru/forum/index.php/topic,205615.msg5735006.html#msg5735006

It looks very promising))