Autore dello sfondo:
James Fordice
16 Jun 2025
Barnard's Galaxy (NGC 6822)
Barnard’s Galaxy (NGC 6822, Caldwell 57) is a member of the Local Group. It is a barred irregular galaxy. It was discovered by E. E. Barnard in 1884. Its structure is very similar to the Small Magellanic Cloud.
It is located about 1.6 million LY from earth. It is the closest galaxy to the Milky Way which is not a satellite. Its magnitude is 8.6. It is about 7,000 LY across.
Its type is IB(s)m:
* I = irregular
* B = barred
* (s) = the spiral arms have an open pattern
* m = no bulge component
Dataset da cui è stata elaborata l'immagine
NGC 6822
7 credit
- Tipo di obiettivo............................................................................................................................Galaxy
- Fotocamera............................................................................................................................FLI ProLine PL9000
- Coordinate dell'obiettivo............................................................................................................................RA 296.2342 Dec -14.79758
- Emisfero............................................................................................................................Southern
- Posizione del telescopio............................................................................................................................Chile
- Evento transitorio............................................................................................................................No
- Osservato il............................................................................................................................04 Sept 2020 - 05 Aug 2022
Filtro | Exp. media (s) | Esposizione totale | Sottoframe |
|---|---|---|---|
| Luminance | 695 | 3h40m | 19 |
| Red | 600 | 3h | 18 |
| Green | 567 | 2h50m | 18 |
| Blue | 533 | 2h40m | 18 |