[JA]

Originally Posted by Rerouter

I can mainly add this to the discussion
https://web.science.mq.edu.au/~ross/...tex-notags.pdf

There method seemed to be to take a mosaic of the night sky with a fairly low focal length length, e.g. DSLR and compare the brightness against known star brightness, allowing a way to loosely calibrate brightness values off the stars,

I would expect this to allow you to find your sky glow spots, then you might be able to use a diy spectrometer e.g. https://publiclab.org/notes/homechem...n-spectrometer to narrow down how effective each filter might be,

Thanks Ryan. That's my next subject (TBC).... Measurement


Best
JA