Arp 2 (UGC 10310 and others) is a spiral galaxy located approximately 49.5 million light-years away in Hercules. At magnitude 14.9, it is in the “spiral galaxies – low surface brightness” class.
Luminance – 26x600s – 260 minutes – binned 1x1
RGB – 8x300s – 40 minutes each – binned 2x2
380 minutes total exposure – 6 hours 20 minutes
Imaged April 11th, 14th and 15th, 2018 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/39825948220/sizes/l