12 Dec 2025
The Helix Nebula (also known as NGC 7293 or Caldwell 63) is a planetary nebula located in the constellation Aquarius.
NGC 7293
19 credit
Filtro | Exp. media (s) | Esposizione totale | Sottoframe |
|---|---|---|---|
| Halpha | 333 | 10h | 108 |
| OIII | 297 | 8h55m | 108 |
| SII | 269 | 8h | 107 |