NGC 6819 (Melotte 223, the Foxhead Cluster and others) is a trumpler class I 1 r open cluster located approximately 7,200 light-years away in Cygnus.
Luminance – 12x600s – 240 minutes – binned 1x1
RGB –10x300s – 50 minutes each – binned 2x2
270 minutes total exposure – 4 hours 30 minutes
Imaged from Dardenne Prairie, Missouri (a red zone) on July 6th, 2018 with a SBIG ST-8300M on an Astro-Tech AT90DT at f/6.7 603mm.
LRGB - https://www.flickr.com/photos/dcrowson/42541348434/sizes/l