M13 is 2½ degrees from Eta Hercules, along the line that connects Eta and Zeta. M13 is barely visible to the unaided eye under dark skies; through binoculars, it looks like a fuzzy patch of light.

The Hercules Cluster (M13) is often cited as the grandest globular cluster north of the celestial equator. Located 25,000 light- years away, it hosts more than 100,000 stars crammed into a volume ...

Hubble just shot this picture of M13, a “globular cluster” of 100,000 stars all whirling around in extremely close proximity to each other. This cluster, which is about 150 light-years across ...

The constellation Hercules is high in the east after dark this evening. Rich with deep-sky objects, we're passing by the Strongman's most famous (M13) for its second-brightest globular cluster ...

M13, better known as the Hercules Cluster, is one of the night sky’s great globular clusters. Globulars get their name for their distinct, globe-like appearance — a ball of stars that ...