The right side of this image contains Abell 1809, a cluster of approximately 78 galaxies. The largest member might be NGC 5338 (UGC 8800 and others), the galaxy at the center of the image.
NGC 5348 (UGC 8821 and others) is the edge-on spiral on the left side.
Luminance – 24x600s – 240 minutes – binned 1x1
RGB – 10x300s – 50 minutes each – binned 2x2
390 minutes total exposure – 6 hours 30 minutes
Imaged June 4th, 6th, 9th and 10th, 2018 and April 2nd, 3rd and 8th, 2019 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.