M50 (NGC 2323, Collinder 124 and others) is a class II 3 r open cluster located approximately 3,200 light-years away in Monoceros.
The small nebula at the top right is NGC 2316/2317.
The small nebula at the bottom right is van den Bergh 87.
Luminance – 12x600s – 120 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 December 29th and 31st, 2016 with a SBIG ST-8300M on an Astro-Tech AT90DT at f/6.7 603mm.
LRGB - https://www.flickr.com/photos/dcrowson/31228402823/sizes/l