30 Dec 2023
NGC 253 contains many star nurseries and a supermassive black hole. It has a diameter of approximately 90,000 light years.
NGC 253
14 credit
Filtro | Exp. media (s) | Esposizione totale | Sottoframe |
|---|---|---|---|
| Blue | 414 | 5h45m | 50 |
| Green | 392 | 5h20m | 49 |
| Red | 269 | 3h40m | 49 |
| Luminance | 324 | 4h25m | 49 |
| Halpha | 98 | 1h20m | 49 |