Messier 13

Messier 13 is the Great Cluster in Hercules and one of the best-known northern globulars. A small telescope resolves it into a packed ball of hundreds of thousands of stars.

Wikipedia

ID
M13
Type
Milky Way globular cluster
Distance
6800 pc · 22179 ly
Angular size
0.33°
RA · Dec
250.42° · 36.46°