Messier 10

Messier 10 (M10) is a globular cluster in the constellation Ophiuchus, with an apparent magnitude of 5.0. It is about 14,300 light-years away.

Finder chart for Messier 10 in the constellation Ophiuchus
Messier 10 (circled) in Ophiuchus. Pink symbols mark Messier objects.
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Facts

CatalogMessier 10 (M10)
Typeglobular cluster
ConstellationOphiuchus
Apparent magnitude5.0
Distanceabout 14,300 light-years
Right ascension16 h 57.2 min
Declination−4.10°
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 M10

M10 is in Ophiuchus. From 40° N it is highest in the south in July evenings, about 46° up. From 35° S it reaches about 59° in the north. It is visible to the naked eye under a dark sky and easy in binoculars.

Ophiuchus constellation →

Other Messier objects in Ophiuchus

Messier 9 (M9)Messier 12 (M12)Messier 14 (M14)Messier 19 (M19)Messier 62 (M62)Messier 107 (M107)

The Messier catalog →

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