21 Oct 2021
This is an image of M13, also known as the Hercules Cluster. It is a globular cluster about 22,000 light years away in the constellation Hercules. It is one of the brightest globular clusters in the galaxy with several hundred thousand stars measuring about 145 light years in diameter.
M13
5 credit
Filter | Avg Exp (s) | Total Exposure | Subframes |
|---|---|---|---|
| Red | 61 | 1h3m | 62 |
| Luminance | 63 | 1h5m | 62 |
| Green | 59 | 1h1m | 62 |
| Blue | 57 | 58m | 61 |