UPDATE: 2020-12-13 Used TOPAZ De-noise AI top remove noise and sharpen

Green channel was very noisy with horrible LP gradients in it so synthesised G from R + B. Still noisy though.

Object IDM51 Whirlpool Galaxy
DetailsRed channel 2020-02-15
Blue channel 2020-02-18
Telescope250mm f4.8 OO Newtonian
CameraAtik 460EX@15C
Baader RGB
Exposure(s)15x180s ea RB
darks, flats, bias
ProcessingSIRIL (first time)