Wallpaper author:
Bernard Miller
09 May 2021
M20 - The Trifid Nebula
This is an image of M20, also known as the Trifid Nebula. It is a combination of an open cluster, an emission nebula (lower red portion), reflection nebula (upper blue portion), and dark nebula (gaps in the emission nebula). It is located about 4,100 light years away in the constellation Sagittarius.
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 |