Berkeley 5 is a trumpler (https://en.wikipedia.org/wiki/Trumpler_classification) class IV 3 p open cluster approximately 20,200 light-years away in Cassiopeia.
Luminance – 30x300s – binned 1x1 – 150 minutes
RGB – 8x180s – 24 minutes each – binned 2x2
222 minutes total exposure – 3 hours 42 minutes
Imaged November 9th, 10th and 11th, 2021 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/52334173841/sizes/l/