Abell 1631 is a faint cluster of 34 or more galaxies located approximately 600 million light-years away in Corvus. This image is centered on NGC 4727 – the brightest member. See the annotated image for the locations of many others.
Luminance – 12x600s – 120 minutes – binned 1x1
RGB – 6x300s – 30 minutes each – binned 2x2
210 minutes total exposure – 3 hours 30 minutes
Imaged on April 27th, 2022 from Dark Sky New Mexico at Rancho Hidalgo (Animas, New Mexico) with a SBIG ST-8300M on an Astro-Tech AT90EDT at f/6.7 603mm.
LRGB - https://www.flickr.com/photos/dcrowson/52350421494/sizes/l/
LRGB annotated - https://www.flickr.com/photos/dcrowson/52350528170/sizes/l/