Sharpless 112 (DWB 174 and others) is a nebula ionized by BD+45 3216. This one is located approximately 5,675 light-years away in Cygnus.
Ha – 24x1800s – 720 minutes – binned 1x1
Luminance – 24x600s – 240 minutes – binned 1x1
RGB – 10:8:9x300s – 50:40:45 minutes each – binned 2x2
1095 minutes total exposure – 18 hours 15 minutes
Imaged over ten nights in October, 2020 and May, June and October, 2021 at 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 - https://www.flickr.com/photos/dcrowson/51807523792/sizes/l/
HaRGB - https://www.flickr.com/photos/dcrowson/51808596948/sizes/l/