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Old 01-12-2019, 09:13 AM
Placidus (Mike and Trish)
Narrowing the band

Placidus is offline
 
Join Date: Mar 2011
Location: Euchareena, NSW
Posts: 3,719
A lovely composition and for me the two reflections don't especially detract.

We've taken to recentering up, down, left, right by say 5% of the field width for each sub, in a random pattern, and then using statistical rejection during stacking. It's astonishingly good at handling not just cosmic rays and satellite trails but things that would not otherwise move between frames: bad pixels, tiny specks of dust, bunnies, dodgy columns. Our guess is that these reflections would also move, but you might need to move more like 20% of the field to make sure that they don't appear in the same place. Need at least 3 subs for it to work.

There is a feeling of overall glare in the image. I guess it's probably a genuine astronomical feature, but perhaps there is some grounds for subduing it.

A lovely image.

Best,
Mike
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