Berkeley 53 is a trumpler (
https://en.wikipedia.org/wiki/Trumpler_classification) class III 2 m open cluster located approximately 10,100 light-years away in Cygnus. More information can be found in a paper here -
https://arxiv.org/abs/0908.2950.
Luminance – 12x300s – binned 1x1 – 60 minutes
RGB – 8x180s – 24 minutes each – binned 2x2
132 minutes total exposure – 2 hours 12 minutes
Imaged September 3rd and 4th, 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.
LRGB -
Dan
