30 Jul 2026
The Crescent Nebula of Cygnus, NGC 6888, is seen here in an HST palette. Another Spa- 2 CCD image without a featured wallpaper.
NGC 6888
6 credit
Filtro | Exp. media (s) | Esposizione totale | Sottoframe |
|---|---|---|---|
| Halpha | 300 | 2h35m | 31 |
| OIII | 310 | 2h40m | 31 |
| SII | 290 | 2h25m | 30 |