Sh2-298 (NGC 2359, IC 468, Gum 4, LBN 1041, Thor’s Helmet) is an emission nebula located approximately 15,000 light-years away in Canis Major. The nebula is created by the center Wolf-Rayet star HD 56925.
Luminance – 24x600s – 240 minutes – binned 1x1
RGB – 8x300s – 40 minutes each – binned 2x2
360 minutes total exposure – 6 hours
Imaged January 18th, 21st and 25th, 2017 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/33233590106/sizes/l