Sharpless 179 (G121.6+00.0, Böhm-Vitense 2 and others) is a planetary nebula located approximately 650 light-years away in Cassiopeia.
Luminance – 24x600s – 240 minutes – binned 1x1
RGB – 8x300s – 40 minutes each – binned 2x2
360 minutes total exposure – 6 hours
Imaged October 31st and November 26th and 27th, 2018 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.
LRGB - https://www.flickr.com/photos/dcrowson/46067693302/sizes/l
I also captured 12 hours of Ha data but it didn’t really add anything to the image.