NGC 7000 The Cygnus Wall, 10 hours total exposure, SII, Ha, OIII (1200s exposures), Telescope 1, Processed with PixInsight.
The data set used to create the above photo is available as a free sample.
The data set includes:
SII, Ha, OIII (1200s) Calibrated Subframes.
Master Dark, Master Bias, Master Flats