Thor’s Helmet Nebula

Thor’s Helmet Nebula

Thor’s Helmet Nebula imaged on the occasion of ESO’s 50th Anniversary Thor’s Helmet Nebula imaged on the occasion of ESO’s 50th Anniversary Thor’s Helmet Nebula imaged on the occasion of ESO’s 50th Anniversary

Wikipedia Excerpt

NGC 2359 (also known as Thor’s Helmet) is an emission nebula in the constellation Canis Major. The nebula is approximately 15,000 light-years away and 30 light-years in size. The central star is the Wolf-Rayet star HD 56925, an extremely hot giant thought to be in a brief, pre-supernova stage of evolution. It is similar in nature to the Bubble Nebula, interactions with a nearby large molecular cloud are thought to have contributed to the more complex shape and curved bow-shock structure of Thor’s Helmet.

It is also Sharpless catalog Sh2-298 and Gum catalog 4.

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