Wallpaper author:
Yuichi Kihara
17 Jul 2021
M 4
Messier 4 or M4 (also designated NGC 6121) is a globular cluster in the constellation of Scorpius. It was discovered by Philippe Loys de Chéseaux in 1745 and catalogued by Charles Messier in 1764. It was the first globular cluster in which individual stars were resolved.
Dataset from which the image was processed
M4
5 credit
- Type of target............................................................................................................................Globular Cluster
- Camera............................................................................................................................FLI ProLine PL9000
- Target coordinates............................................................................................................................RA 245.8968 Dec -26.5257
- Hemisphere............................................................................................................................Southern
- Telescope location............................................................................................................................Chile
- Transient event............................................................................................................................No
- Observed on............................................................................................................................11 Jun 2020 - 23 May 2022
Filter | Avg Exp (s) | Total Exposure | Subframes |
|---|---|---|---|
| Luminance | 300 | 1h25m | 17 |
| Red | 300 | 1h25m | 17 |
| Green | 282 | 1h20m | 17 |
| Blue | 319 | 1h25m | 16 |