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I agree

Distribution chart by Bortle scale

anovikov
17 Oct, 2017 20:36
It is probably possible to detect sky brightness by the shot itself and exposure data (exposure and focal ratio, and electron counts for known matched stars). Why not publish it (in Bortle scale), and publish chart of distribution of them in a total collection, grouped by object type? Would be cool!
siovene
18 Oct, 2017 08:10
I don't think that's possible by means of statistical analysis: the images posted here are post-processed, and altering the contrast/brightness etc will definitely mess up with that data. We have a "Bortle scale" input in the basic image data, but I'm not sure how many people use it.
 
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