Wallpaper author:
Petri Kehusmaa
20 Dec 2022
M22
Messier 22 or M22, also known as NGC 6656, is an elliptical globular cluster of stars in the constellation Sagittarius, near the Galactic bulge region. It is one of the brightest globulars visible in the night sky. It's core contains about 70 000 stars and its diameter is nearly 100 light years. It's also assumed to contain almost 100 black holes!
Dataset from which the image was processed
M22
7 credit
- Type of target............................................................................................................................Globular Cluster
- Camera............................................................................................................................FLI ProLine PL9000
- Target coordinates............................................................................................................................RA 279.0998 Dec -23.9047
- Hemisphere............................................................................................................................Southern
- Telescope location............................................................................................................................Chile
- Transient event............................................................................................................................No
- Observed on............................................................................................................................30 Mar 2020 - 04 Oct 2021
Filter | Avg Exp (s) | Total Exposure | Subframes |
|---|---|---|---|
| Luminance | 329 | 1h55m | 21 |
| Red | 286 | 1h40m | 21 |
| Green | 286 | 1h40m | 21 |
| Blue | 300 | 1h45m | 21 |