09 Aug 2026
Sh 2-103 - the Cygnus Loop - is a supernova remnant in the constellation Cygnus, approximately 2,400 light-years from Earth.
Sh 2-103
3 credit
Filtro | Exp. media (s) | Esposizione totale | Sottoframe |
|---|---|---|---|
| OIII | 300 | 1h30m | 18 |
| SII | 300 | 1h30m | 18 |
| Halpha | 300 | 1h30m | 18 |