Need help for artefacts in my image 5867.jpg
Here's a jpeg link of starless HA IC2177 .
You can see artifact everywhere but especially in the corners . Does someone have an idea of what this is ?
About 50min of integration
Sharpstar 13028hnt
Antlia ha highspeed 3nm
I know i didnt have the Best collimation and maybe have some tilt
I do see some leftovers from the star removal process. Is that what you’re taking about?
I did a crop so we can see better . I dont know if it's stars . The shape is weird . For the filters , i use 3nm but for highspeed. Between f2.6 -3.6seagull~4.jpg
Hello Andrea. Even at f2.8 , of course it's noisy, just 50 minutes of integration ! Im gonna try something else for noise reduction.
I will check too without noise reduction if it's still there .
Thanks :)