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astrophoto - Image Calibration and exposure

DeepSkyStacker (free and Open Source)


In case you have PixInsight:

from bulrichl:

beginner guide to PixInsight

Jon Rista(a software engineer and architect by day, photographer and astrophotographer in my spare time):


 

Effective noise reduction

Madratter

trappedphotons David Ault

 Harryastroshed

lightvortexastronomy

DuncanKitchin 

minDN calc on github

20xRN rule etc 

big shoutout

cloudynights  

diminishing returns 

sub exposure tables from Shiraz

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