30 Oct 2021
The Hercules globular cluster is 12 billion years old.
It is located at a distance of 22,000 ly.
Also known as Messier 13.
Data acquired June to October 2021 in Spain.
Telescope live
SPA-2, 0.7 m RC telescope.
Officina Stellare ProRC 700
F8,
FLI PL16803
170 minutes total exposure,L RGB
Processed using Pixinsight,LR
M13
5 credit
Filtro | Exp. media (s) | Esposizione totale | Sottoframe |
|---|---|---|---|
| Red | 61 | 1h3m | 62 |
| Luminance | 63 | 1h5m | 62 |
| Green | 59 | 1h1m | 62 |
| Blue | 57 | 58m | 61 |