Wallpaper author:
David Tonucci
23 Aug 2026
Trifid Nebula
The M20 nebula, also known as the Trifid Nebula, is a bright star-forming region located about 4,000 to 5,000 light-years away in the constellation Sagittarius. It is famous for uniquely combining three types of nebulae: a pink emission nebula, a blue reflection nebula, and dark dust lanes
Dataset from which the image was processed
M20
10 credit
- Type of target............................................................................................................................Emission Nebula
- Camera............................................................................................................................FLI ProLine PL9000
- Target coordinates............................................................................................................................RA 270.675 Dec -22.9667
- Hemisphere............................................................................................................................Southern
- Telescope location............................................................................................................................Chile
- Transient event............................................................................................................................No
- Observed on............................................................................................................................24 Sept 2019 - 14 Aug 2022
Filter | Avg Exp (s) | Total Exposure | Subframes |
|---|---|---|---|
| Luminance | 67 | 40m | 36 |
| Red | 69 | 40m | 35 |
| Green | 857 | 8h20m | 35 |
| Blue | 65 | 38m | 35 |
| Halpha | 806 | 7h50m | 35 |