Thor's Helmet (NGC 2359)

Thor’s Helmet is estimated to be 30 light-years in diameter - more than 10 times larger than our entire solar system. It is about 12,000 light-years away from Earth and is found in the constellation Canis Major. It contains several hundred solar masses, At its core is WR7, an extremely hot Wolf-Rayet star thought to be over 280,000 times brighter than our Sun and 16 times more massive. This star is in a pre-supernova stage and is shedding its outer layers, creating the nebula's bubble-like structure. Eventually, this star will explode in a fiery supernova event.

Observatory location: Chile

Telescope: Planewave CDK24

Focal length: 396cm

Aperture: 61cm

Camera: QHY 600M

Capture details:

Astrodon Ha, Sii, Oiii narrowband filters

Ha -2hrs 35min, Sii - 2hrs 35min, Oiii - 4hr 5min

300sec subs

Total exposure time: 9hrs 15min