Autore dello sfondo:
Thomas Peter
17 Mar 2026
Messier 81
Messier 81 (M81, or Bode's Galaxy) is a stunning "grand design" spiral galaxy located 11.6–12 million light-years away in the Ursa Major constellation. Discovered by Johann Elert Bode in 1774, this bright, active galaxy is known for its well-defined spiral arms, a massive 70-million-solar-mass central black hole, and intense star formation.
Hope ya like it!
Tom
Dataset da cui è stata elaborata l'immagine
M81
20 credit
- Tipo di obiettivo............................................................................................................................Galaxy
- Fotocamera............................................................................................................................FLI Proline PL16803
- Coordinate dell'obiettivo............................................................................................................................RA 148.8883 Dec 69.0653
- Emisfero............................................................................................................................Northern
- Posizione del telescopio............................................................................................................................United States of America
- Evento transitorio............................................................................................................................No
- Osservato il............................................................................................................................02 Feb 2022 - 08 Mar 2022
Filtro | Exp. media (s) | Esposizione totale | Sottoframe |
|---|---|---|---|
| Luminance | 1705 | 9h | 19 |
| Red | 758 | 4h | 19 |
| Green | 758 | 4h | 19 |
| Blue | 800 | 4h | 18 |
| Halpha | 1800 | 9h | 18 |