NGC 6940 (Melotte 232 and others) is a class III open cluster located approximately 2,500 light-years away in Vulpecula. While a bright 6.5 magnitude, it is barely discernable from the vast background of stars.
Luminance – 12x600s – 240 minutes – binned 1x1
RGB –8x300s – 40 minutes each – binned 2x2
240 minutes total exposure – 4 hours
Imaged from Dardenne Prairie, Missouri (a red zone) on September 30th and October 11th, 2018 with a SBIG ST-8300M on an Astro-Tech AT90DT at f/6.7 603mm.
LRGB - https://www.flickr.com/photos/dcrowson/44364324765/sizes/l