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How to reduce BIG halos on stars
Posted: Wed Aug 28, 2019 1:07 pm
by paddy36
Hello,
Any idea how to reduce big halos on stars... For example the image attached (it's just a crop) Thanks
Patrick
Re: How to reduce BIG halos on stars
Posted: Thu Aug 29, 2019 12:09 am
by 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?
Re: How to reduce BIG halos on stars
Posted: Thu Aug 29, 2019 8:29 am
by 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
Re: How to reduce BIG halos on stars
Posted: Thu Aug 29, 2019 12:02 pm
by admin
paddy36 wrote: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?
Re: How to reduce BIG halos on stars
Posted: Thu Aug 29, 2019 3:02 pm
by paddy36
Hi Ivo,
Not yet since I want to get more datas this night , so will see that later. Thanks again... Patrick