Processed in Hubble-2 palette.
NGC 2359 is also known as **Thor's Helmet**¹²³⁴. It is an **emission nebula** in the constellation Canis Major, about 12,000 light years away from Earth¹²³.
NGC 2359 is formed by the fast stellar wind from the **Wolf-Rayet
star WR7** (HD 56925), an extremely hot
star thought to be in a brief pre-supernova stage of evolution¹²³. The wind collides with and energizes the slower moving wind ejected by the
star when it was a red giant, creating a bubble-like structure with complex filaments and shock waves¹²³.
NGC 2359 has an apparent magnitude of **11.5** and can be seen with a medium-sized telescope¹². It appears as a diffuse patch of reddish light near the
star Lambda Canis Majoris¹². It is best seen from the southern hemisphere during spring months².
Kilde: Samtale med Bing, 18.6.2023
(1) NGC 2359 - Wikipedia.
https://en.wikipedia.org/wiki/NGC_2359.
(2) APOD: 2020 June 12 - NGC 2359: Thor's Helmet.
https://apod.nasa.gov/apod/ap200612.html.
(3) Thor's Helmet (NGC 2359) – Constellation Guide.
https://www.constellation-guide.com/thors-helmet-ngc-2359/.
(4) Thor's Helmet Nebula | Images and facts | BBC Sky at Night Magazine.
https://www.skyatnightmagazine.com/astrophotography/nebulae/thors-helmet-nebula/.
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