Wallpaper author:
James Fordice
16 Jun 2025
M22
M22 was the first GC discovered (1665). One of the nearer GCs. 97 LY in diameter. Third brightest GC. One of four GCs known to have a PN. (IRAS 18333-2357 or GJJC 1). Luminosity is limited by dust extinction.
Shapley Sawyer Classification: VII
Distance: 10,438 LY
Type: Hub Globular
Position w.r.t. core of galaxy: In the disc of the Milky Way about halfway between the sun and the core.
Any stars resolved: Yes
Undergoing Core Collapse: No
Dataset from which the image was processed
M22
6 credit
- Type of target............................................................................................................................Globular Cluster
- Camera............................................................................................................................QHY 600M
- Target coordinates............................................................................................................................RA 279.0998 Dec -23.9048
- Hemisphere............................................................................................................................Southern
- Telescope location............................................................................................................................Chile
- Transient event............................................................................................................................No
- Observed on............................................................................................................................11 Aug 2023 - 16 Aug 2023
Filter | Avg Exp (s) | Total Exposure | Subframes |
|---|---|---|---|
| Luminance | 288 | 2h | 25 |
| Red | 300 | 2h | 24 |
| Green | 300 | 2h | 24 |
| Blue | 313 | 2h5m | 24 |