Wallpaper author:
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 from which the image was processed
NGC 6888
2 credit
- Type of target............................................................................................................................Emission Nebula
- Camera............................................................................................................................FLI PL16803
- Target coordinates............................................................................................................................RA 303.0292 Dec 38.35
- Hemisphere............................................................................................................................Northern
- Telescope location............................................................................................................................Spain
- Transient event............................................................................................................................No
- Observed on............................................................................................................................16 Jul 2020 - 14 Dec 2021
Filter | Avg Exp (s) | Total Exposure | Subframes |
|---|---|---|---|
| Halpha | 930 | 2h35m | 10 |
| Luminance | 42 | 7m | 10 |
| Red | 12 | 2m | 10 |
| Green | 27 | 4m | 9 |
| Blue | 13 | 2m | 9 |