M3
M3. Processed using DSS. Hardware details: Camera: Nikon D200. Telescope: SW Evostar 120 with Baader UHC-S filter. Mount: AZ-EQ6 guided using a ST80 synguider. Image details: Lights: 57 x 3min at ISO 800 taken over 4 days of imaging, Darks: 20 x 3min at ISO 800, Lights and darks separated by 1 min intervals. Flats: 40 x 1/40s at ISO 800, Bias: 30 x 1/8000 at ISO 100
Dates of capture 17/03/2016. Conditions: Clear sky. Seeing was good, moon was strong. The guiding was stable and unguided, I could get 1 min subs. . The wind was very light.
I increased the saturation by 25% and aligned the colour channel histograms until the dark signal at the edge of the image was the same as in the original photos.
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