Added twice as many frames as normal – still noisy. Probably need longer exposures. Bad gradients needed a lot of work in APP.
UPDATE: Used the demo versions of TOPAZ DeNoiseAI and it makes a huge difference. Removes noise without removing details. Other de-noising seems to just blur features – this is far more intelligent.
|Object ID||M101, NGC 4321|
|Details||Spiral galaxy, Ursa Major|
|Telescope||250mm f4.8 Newtonian|
|Camera||Atik 460EX @-15C|
|Exposure(s)||20x180s each RGB|
darks, flats, bias