Autore dello sfondo:
Marius Dinga
31 Dec 2025
B33 & NGC 2023
The Horsehead, also known as Barnard 33, is a cold, dark cloud of gas and dust, silhouetted against the bright nebula, IC 434.
NGC 2023 is an emission and reflection nebula. The reflection nebula is illuminated by the Herbig Ae/Be star HD 37903, which has a spectral class of about B2 Ve.
Dataset da cui è stata elaborata l'immagine
B33
7 credit
- Tipo di obiettivo............................................................................................................................Emission Nebula
- Fotocamera............................................................................................................................FLI ProLine PL9000
- Coordinate dell'obiettivo............................................................................................................................RA 85.37133 Dec -2.32686
- Emisfero............................................................................................................................Southern
- Posizione del telescopio............................................................................................................................Chile
- Evento transitorio............................................................................................................................No
- Osservato il............................................................................................................................04 Dec 2021 - 20 Apr 2022
Filtro | Exp. media (s) | Esposizione totale | Sottoframe |
|---|---|---|---|
| Luminance | 760 | 3h10m | 15 |
| Red | 557 | 2h10m | 14 |
| Green | 557 | 2h10m | 14 |
| Blue | 514 | 2h | 14 |