Wallpaper author:
Judith Prana
21 Mar 2026
Great Hercules GC (LRGB)
Messier 13, or M13 (also designated NGC 6205 and sometimes called the Great Globular Cluster in Hercules, the Hercules Globular Cluster, or the Great Hercules Cluster), is a globular cluster of several hundred thousand stars in the constellation of Hercules. Almost 5 hours of LRGB data from the remote Telescope Live Observatory in Almeria, Spain. Pre and Post processed in Pixinsight with final touches in Paintshop Pro ultimate.
Dataset from which the image was processed
M13
5 credit
- Type of target............................................................................................................................Globular Cluster
- Camera............................................................................................................................FLI PL16803
- Target coordinates............................................................................................................................RA 250.4235 Dec 36.4613
- Hemisphere............................................................................................................................Northern
- Telescope location............................................................................................................................Spain
- Transient event............................................................................................................................No
- Observed on............................................................................................................................26 Oct 2019 - 26 Oct 2021
Filter | Avg Exp (s) | Total Exposure | Subframes |
|---|---|---|---|
| Red | 61 | 1h3m | 62 |
| Luminance | 63 | 1h5m | 62 |
| Green | 59 | 1h1m | 62 |
| Blue | 57 | 58m | 61 |