13 Sept 2022
The Helix Nebula (NGC7293) is one of the closest planetary nebulae to the earth, at a distance of 655 light years.
NGC 7293
32 credit
Filtro | Exp. media (s) | Esposizione totale | Sottoframe |
|---|---|---|---|
| Halpha | 932 | 22h | 85 |
| Luminance | 321 | 7h35m | 85 |
| Red | 184 | 4h20m | 85 |
| Green | 180 | 4h15m | 85 |
| Blue | 194 | 4h35m | 85 |