Arp 79 (MCG+03-36-069, NGC 5490C and others) is the small spiral at the center of the image. This one is part of the spiral galaxies with high surface brightness companions grouping. Unfortunately, there doesn’t appear to be a companion galaxy.
Arp 117 (IC 982, UGC 9059 and others) is the small, elliptical-like spiral interacting with IC 983, the large spiral at the top center. This one is part of the elliptical-like galaxies close to and perturbing spirals group.
NGC 5490 is the large elliptical at the bottom center. MCG+03-36-067 is just to the left (east) and MCG+03-36-064 is above it.
Luminance – 27x600s – 270 minutes – binned 1x1
RGB – 8x300s – 40 minutes each – binned 2x2
390 minutes total exposure – 6 hours 30 minutes
Imaged April 2nd, 4th and 30th and May 1st, 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/34956807086/sizes/l