Autore dello sfondo:
Michelle Ashford
05 Feb 2022
The Crescent Nebula
The Crescent Nebula, also known as NGC 6888, is about 25 ly across blown by winds from its central, massive Wolf-Rayet star. The star is shredding its outer envelope, ejecting the equivalent of the Sun's mass every 10,000 years. This nebula is found in the constellation of Cygnus about 5000 ly away.
Dataset da cui è stata elaborata l'immagine
NGC 6888
2 credit
- Tipo di obiettivo............................................................................................................................Emission Nebula
- Fotocamera............................................................................................................................FLI PL16803
- Coordinate dell'obiettivo............................................................................................................................RA 303.0292 Dec 38.35
- Emisfero............................................................................................................................Northern
- Posizione del telescopio............................................................................................................................Spain
- Evento transitorio............................................................................................................................No
- Osservato il............................................................................................................................16 Jul 2020 - 14 Dec 2021
Filtro | Exp. media (s) | Esposizione totale | Sottoframe |
|---|---|---|---|
| Halpha | 930 | 2h35m | 10 |
| Luminance | 42 | 7m | 10 |
| Red | 12 | 2m | 10 |
| Green | 27 | 4m | 9 |
| Blue | 13 | 2m | 9 |