Sharpless 112 (DWB 174 and 175, Ced 181, LBN 337 and others) is a large HII area located about a degree away from Deneb in Cygnus.
Ha – 21x1800s – 630 minutes – binned 1x1
RGB – 8x300s – 40 minutes each – binned 2x2
750 minutes total exposure – 12 hours 30 minutes
Imaged from Dardenne Prairie, Missouri (a red zone) over nine nights in 2017 and 2018 with a SBIG ST-8300M on an Astro-Tech AT90EDT at f/6.7 603mm.
HaRGB - https://www.flickr.com/photos/dcrowson/50964920682/sizes/l/
I also captured 120 minutes of luminance on September 1st, 2019 to create a LRGB image.
LRGB - https://www.flickr.com/photos/dcrowson/50964105543/sizes/l/