24 Jan 2026
Star cluster, NGC 6231, is surrounded by the expansive emission nebula, RCW 113, of Scorpius, displayed here in an HST palette..
NGC 6231
1 credit
Filtro | Exp. media (s) | Esposizione totale | Sottoframe |
|---|---|---|---|
| Halpha | 600 | 20m | 2 |
| OIII | 600 | 20m | 2 |
| SII | 600 | 20m | 2 |