03 Mar 2022
Thor's Helmet (NGC2359) is an emission nebula with a Wolf-Rayet star at it's center. The OIII emission (blue in image) is particularly strong for this object.
NGC 2359
18 credit
Filter | Avg Exp (s) | Total Exposure | Subframes |
|---|---|---|---|
| Green | 94 | 1h36m | 61 |
| Red | 133 | 2h15m | 61 |
| Blue | 83 | 1h24m | 61 |
| Luminance | 156 | 2h36m | 60 |
| Halpha | 895 | 14h55m | 60 |