Arp 112 is a triplet of galaxies in Arp’s “Elliptical and elliptical like galaxies with repelling arms” class. This group consists of:
MCG+05-01-026 (PGC 111) at the left of center.
NGC 7806 (UGC 12911 PGC 112, VV 226 / 226a and others) at the center.
NGC 7805 (UGC 12908, PGC 109, VV 226b and others) to the right of center.
Luminance – 24x600s – 240 minutes – binned 1x1
RGB – 8x300s – 40 minutes each – binned 2x2
360 minutes total exposure – 6 hours
Imaged October 16th, 19th, 20th and 22nd, 2017 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/27618435539/sizes/l