Andromeda Galaxy M31

My second session of 60x60s exposure time was done in ISO4000. Now I could combine this with my first session (ISO 2500) using DeepSkyStacker. Final editing was done with CS4 and DeNoise AI.

Setting : Nikon D7500 and TLAPO80/480 f/6 : first session 60x60s ISO2500, second session 60x60s ISO4000. Camera control by DigiCamControl. Raw data converted to DNG and stacking using DeepSkyStacker.