04 Jul 2021
This is an image of NGC 2359, also known as Thor's Helmet. It is an emission nebula about 12,000 light years away in the constellation Canis Major. The nebula is the result of a Wolf-Rayet star (WR7).
NGC 2359
3 credit
Filtro | Exp. media (s) | Esposizione totale | Sottoframe |
|---|---|---|---|
| Halpha | 450 | 1h30m | 12 |
| OIII | 491 | 1h30m | 11 |
| SII | 273 | 50m | 11 |