Sh1-118 (PK 118+02 1 and others) is a faint planetary nebula located approximately 3,800 light-years away in Cassiopeia. The planetary is surrounded by a faint HII region designated as G118.286+02.481.
Ha – 24x1800s – 720 minutes – binned 1x1
Luminance – 24x600s – 240 minutes – binned 1x1
RGB – 8x300s – 40 minutes each – binned 2x2
HaRGB - 840 minutes total exposure – 14 hours
LRGB - 360 minutes total exposure – 6 hours
Imaged over five nights in September and October, 2019 from Dark Sky New Mexico at Rancho Hidalgo (Animas, New Mexico) with a SBIG STF-8300M on an Astro-Tech AT12RCT at f/8 2432mm.
HaRGB - https://www.flickr.com/photos/dcrowson/49661970248/sizes/l/
LRGB - https://www.flickr.com/photos/dcrowson/49662791082/sizes/l/