How to reduce BIG halos on stars

[paddy36]

Hello,
Any idea how to reduce big halos on stars... For example the image attached (it's just a crop) Thanks
Patrick

[admin]

This is going to be tricky, as the issue seems to be more an acquisition/atmospheric one than a feature of your optical train.
Was transparency exceptionally bad when you took this? Do the halos show up in all subframes, or did your optics dew over at some stage?

[paddy36]

Hello Ivo,

Some datas seems better so the problem is from atmospheric issue..., the lagoon is low in our country so that's the reason I guess. So I'll keep only the better images . Thanks

[admin]

Hello Ivo,

Some datas seems better so the problem is from atmospheric issue..., the lagoon is low in our country so that's the reason I guess. So I'll keep only the better images . Thanks

Ok, good to know we have found the problem. You could just stack the frames that are better? Does that still give you enough signal to process?

[paddy36]

Hi Ivo,
Not yet since I want to get more datas this night , so will see that later. Thanks again... Patrick