Arp 313 is a trio of galaxies in Ursa Major:
NGC 3995 (UGC 6944, PGC 37624, VV249/a and others) on the left (east) is the odd spiral located approximately 165 million light-years away.
NGC 3994 (UGC 6936, PGC 37616, VV249b and others) near the center is a LINER-type Active Galaxy Nucleus galaxy.
NGC 3991 (UGC 6933, PGC 37613, VV523 and others) is just above and to the right of NGC 3994.
HD 103928 is the bright, magnitude 6.4 V star.
Luminance – 28x600s – 280 minutes – binned 1x1
RGB – 18x300s – 90 minutes each – binned 1x1
500 minutes total exposure – 9 hours 20 minutes
Imaged March 17th and 18th and April 3rd, 2021 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/51776391957/sizes/l/