M102 (NGC 5866, UGC 9723, PGC 53933 and others) is a known as the Spindle Galaxy. A lenticular galaxy, this one is located approximately 47 million light-years away in Draco.
Luminance – 24x600s – 240 minutes – binned 1x1
RGB – 10:8:8x300s – 50:40:40 minutes each – binned 2x2
370 minutes total exposure – 6 hours 10 minutes
Imaged April 6th, 7th, 20th, 23rd and 24th, 2022 from Dark Sky New Mexico at Rancho Hidalgo (Animas, New Mexico) with a SBIG STF-8300M on an Astro-Tech AT12RCT at f/8 2432mm.
LRGB - https://www.flickr.com/photos/dcrowson/52187680789/sizes/l/