Celestial hemisphere:  Southern  ·  Constellation: Canis Major (CMa)  ·  Contains:  NGC 2359
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Thor's Helmet, Richard S. Wright Jr.
Thor's Helmet
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Thor's Helmet

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Thor's Helmet, Richard S. Wright Jr.
Thor's Helmet
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Thor's Helmet

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Description

Thor's Helmet (NGC 2359) is an emission nebula in the constellation Canis Major. It's over 30 lightyears across, and 15,000 lightyears away! A very hot giant star powers this mass of glowing gas!

This is my first hybrid image where I mixed narrowband data with RGB. The OIII here is off the charts and much stronger than the Ha. The red doesn't need much help, but the OIII really brought out a lot in this image.

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Thor's Helmet, Richard S. Wright Jr.