Celestial hemisphere:  Southern  ·  Constellation: Canis Major (CMa)  ·  Contains:  HD57008  ·  HD57027  ·  HD57057  ·  HD57083  ·  LBN 1040  ·  LBN 1041  ·  NGC 2359  ·  Sh2-298
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Thor's Helmet, Shailesh Trivedi
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Thor's Helmet

Getting plate-solving status, please wait...
Thor's Helmet, Shailesh Trivedi
Powered byPixInsight

Thor's Helmet

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Description

Thor’s Helmet is an emission nebula 12 thousand light years away and 78500 to 236000 years old, in constellation Canis Major. The central star is a Wolf Rayet star called WR7, having light emitted from highly ionized Helium and Nitrogen. This indicates very high surface temperatures of 30,000 K to around 200,000 K, and strong stellar winds which are responsible for the rest of the helmet’s red color from Hydrogen Alpha and greenish blue from ionized Oxygen III emissions. A pretty sight according to me and hence my allure to capture this over several days totaling an exposure time of 17.5 hrs using Hydrogen Alpha and Oiii filters

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Thor's Helmet, Shailesh Trivedi