M31 Andromeda Galaxy
This superb image by member Gary Hoffman is a mix of broadband, and narrowband data collected with different filters. The broadband filter collected the RGB data, and the narrowband data allowed him to isolate the Hydrogen alpha (Ha) in the red channel of his colour camera. He then blended the Ha data in with the RGB data to enhance the red nebulae in the galaxy.
The total integration time was over 14 hours, with almost 8 devoted to the narrowband data.
Sub frames (Optolong L-Pro): 80 subs @ 300 seconds.
Sub frames (Optolong L-eXtreme): 94 subs @ 300 seconds.
Camera: ZWO ASI2600MC Pro
Telescope: Skywatcher 80ED DS Pro Refractor @ 510mm
Mount: Celestron AVX
Guide camera: ZWO ASI224mc
Focuser: ZWO EAF
Software: Processed in PixInsight; captured with: CPWI / NINA / PHD2.