NGC 4274 (UGC 7377, PGC 39724 and many others) is a LINER-type Active Galaxy Nucleus (https://en.wikipedia.org/wiki/Low-ionization_nuclear_emission-line_region) located approximately 47 million light-years away in Coma Berenices.
Luminance – 24x600s – 240 minutes – binned 1x1
RGB – 12:8:8x300s – 60:40:40 minutes each – binned 2x2
380 minutes total exposure – 6 hours 20 minutes
Imaged May 28th, 30th and 31st and June 2nd, 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/52154407558/sizes/l/