05 Apr 2026
M 12, NGC 6218 or the Gumball GC widefield is a globular cluster in the constellation of Ophiuchus. It was discovered by the French astronomer Charles Messier on May 30, 1764, who described it as a "nebula without stars". In dark conditions this cluster can be faintly seen with a pair of binoculars. Over 5 and half hours of L,R,G,B data from the remote dark-site Telescope Live observatory in Chile. Pre and Post processed in Pixinsight.
M12
4 credit
Filtro | Exp. media (s) | Esposizione totale | Sottoframe |
|---|---|---|---|
| Blue | 350 | 1h45m | 18 |
| Green | 250 | 1h15m | 18 |
| Red | 300 | 1h30m | 18 |
| Luminance | 300 | 1h25m | 17 |