Wallpaper author:
Bernard Miller
14 Apr 2022
The Crescent Nebula
This is an image of the Crescent Nebula, also known as NGC 6888. It is an emission nebula about 5,000 light years away in the constellation Cygnus. It is formed by the fast stellar wind from the Wolf-Rayet star WR 136 (HD 192163) colliding with and energizing the slower moving wind ejected by the star when it became a red giant.
Dataset from which the image was processed
NGC 6888
4 credit
- Type of target............................................................................................................................Emission Nebula
- Camera............................................................................................................................FLI PL16083
- Target coordinates............................................................................................................................RA 303.0292 Dec 38.35
- Hemisphere............................................................................................................................Northern
- Telescope location............................................................................................................................Spain
- Transient event............................................................................................................................No
- Observed on............................................................................................................................09 Oct 2019 - 22 Oct 2022
Filter | Avg Exp (s) | Total Exposure | Subframes |
|---|---|---|---|
| Luminance | 150 | 25m | 10 |
| Red | 150 | 25m | 10 |
| Green | 150 | 25m | 10 |
| Blue | 150 | 25m | 10 |
| Halpha | 1800 | 5h | 10 |