Wallpaper author:
Jan Scheers
22 Apr 2021
Crescent Nebula in HOO
Image of the Crescent Nebula (NGC 6888), acquired with the SPA-2 telescope in IC Astronomy Observatory, Spain.
The Crescent Nebula is an emission nebula in the constellation Cygnus, about 5000 light-years away from Earth. The result of the collision is a shell and two shock waves, one moving outward and one moving inward.
Pro dataset was curated by Ian Howarth
Total exposure 95 minutes. 14 subs with Ha and 15 subs with OIII (300s exposure / sub)
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 |