Hercules Globular Cluster (M13)

Hercules Globular Cluster (M13) is a globular cluster in the constellation Hercules, with an apparent magnitude of 5.8. It is about 25,000 light-years away.

Finder chart for the Hercules Globular Cluster (M13) in the constellation Hercules
the Hercules Globular Cluster (M13) (circled) in Hercules. Pink symbols mark Messier objects.
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Facts

CatalogMessier 13 (M13)
Typeglobular cluster
ConstellationHercules
Apparent magnitude5.8
Distanceabout 25,000 light-years
Right ascension16 h 41.7 min
Declination+36.46°
Best monthJuly (at about 9 pm)

Sources: star positions, magnitudes and colors from the Yale Bright Star Catalogue; constellation boundaries and star names from the IAU; areas and distances from Wikidata; stick figures by M. van der Sluys. How the maps are made.

How to find the Hercules Globular Cluster

The Hercules Globular Cluster is in Hercules. From 40° N it is highest in the south in July evenings, about 86° up. From 35° S it reaches about 19° in the north. Binoculars show it under a dark sky; a small telescope shows more detail.

Hercules constellation →

Other Messier objects in Hercules

Messier 92 (M92)

The Messier catalog →

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