Target: Whirlpool Galaxy (M51) and NGC 5195 an interacting galaxy pair including a widefield with 30+ Background galaxies !

Equipment: Skywatcher 200 PDS (upgraded), TS GPU Coma Corrector, Skywatcher EQ-6R, ToupTek ATR2600M (mono), GPCMOS02000KPA for Guiding, Touptek 36mm Filters in SHO (4nm) and LRGB.

Acquisition: 86 x 180" L, 28 x 300" Ha, 45 x 90" R + 33 x 60" R, 45 x 90" G + 19 x 60" G, 45 x 90" B, 30 Flats each, 30 Bias frames. Gain 100, Offset 256, Bortle 4 backyard

Total integration: 10h 52m 30 s.

Processing: Pixinsight: Stacked using WBPP, RGBComposition, BXT, NXT, VeraLux Hypermetric Stretch, Continuum Substraction for Ha – R, Pixelmath and Masking to boost Ha

This is my first HaLRGB project. Despite the wide field, there are many details when you zoom in, and I'm happy with the result. Processing was tricky because there were many frames with different gradients due to the presence of high clouds. This was also the first session in which I switched from KStars to NINA. Honestly, while I like NINA, Windows is a huge pain. I lost a lot of data because Windows randomly updated during the session. Anyway, what do you think?

by stannyslausibert

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