NGC 7023 – Iris Nebula from 08/08/2012, 09/07/2012 and 09/11/2012
5 sets of 2 luminance@50s, 1 red@40s, 1 green@40s, and 1 blue@40s, binned 3×3

NGC 7023 – Iris Nebula from 08/08/2012, 09/07/2012 and 09/11/2012
5 sets of 2 luminance@50s, 1 red@40s, 1 green@40s, and 1 blue@40s, binned 3×3

Telescope: 0.5 meter (20″) PlaneWave CDK20 @ f/6.8
Camera: ProLine PL09000
Processing: Maxim DL and Photoshop