06 Aug 2021
Messier 55 also known as NGC 6809 is a globular cluster in the south of the constellation Sagittarius.
M55
7 credit
Filtro | Exp. media (s) | Esposizione totale | Sottoframe |
|---|---|---|---|
| Luminance | 265 | 1h55m | 26 |
| Red | 369 | 2h40m | 26 |
| Green | 276 | 1h55m | 25 |
| Blue | 288 | 2h | 25 |