22 Apr 2022
14ly diameter, 13 magnitude, 3100ly distant, very low surface brightness planetary nebula with background 17 magnitude, deep field galaxies 600mly away, 44hr total acquisition time.
Sh 2-313
8 credit
Filtro | Exp. media (s) | Esposizione totale | Sottoframe |
|---|---|---|---|
| Halpha | 600 | 4h | 24 |
| OIII | 600 | 4h | 24 |
| SII | 600 | 4h | 24 |