"The sky is the ultimate art gallery just above us." - Ralph Waldo Emerson (1803 - 82)
Astrophotography by Jason Jennings

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Nebulae :: NGC2359 - Thor's Helmet

NGC2359 - Thor


Resolutions Available: 780x780 : 1560x1560
         Object NGC2359 - Thor's Helmet
         Comment NGC2359 is a remarkable emission nebula located in the constellation Canis Major. It is powered by a hot Wolf-Rayet star (HD 56925) that is shedding stellar material. The extremely strong stellar winds that flow outward from the star interact with previously expelled gas and dust providing a bubble-like feature rich in doubly ionised oxygen. The complex structure surrounding the bubble has formed by the ongoing interaction of ejected material and the interstellar medium. Given the nebula's intriguing shape that resembles a Viking warrior's head gear, it is more commonly known as Thor's Helmet. The nebula is located approximately 15,000 light-years away.

This image is a Ha:OIII:OIII composite with an RGB blend.
         Optics RCOS 24" F/8 (4876 mm FL)
         Camera Apogee Alta U42 - 1x1 bin (image scale .57 arcsec/pix)
         Mount RCOS Professional Series Equatorial Fork
         Exposure Total exposure time: 4.3 hours (Ha:70min,OIII:70min,RGB:40min respectively)
         Date 05/12/2008


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