Messier 13

m68,globular cluster

Messier 68

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Messier 68 (M68) is a globular star cluster located in Hydra, the largest constellation in the sky.

The cluster has an apparent magnitude of 9.67 and lies at a distance of 33,600 light years from Earth. It has the designation NGC 4590 in the New General Catalogue.
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great hercules cluster,m13,hercules globular cluster

Messier 13: Hercules Globular Cluster

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Messier 13 (M13), also known as the Great Globular Cluster in Hercules, is a globular cluster located in Hercules constellation.

Messier 13 is one of the brightest and best known globular clusters in the northern sky. The cluster has an apparent magnitude of 5.8 and lies at a distance of 22,200 light years, or 6,800 parsecs, from Earth.  Its designation in the New General Catalogue is NGC 6205.
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m3,ngc 5272,globular cluster

Messier 3

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Messier 3 (M3) is a globular cluster located in the constellation Canes Venatici, the Hunting Dogs.

Messier 3 is one of the brightest, largest globular clusters in the sky. It has an apparent magnitude of 6.2 and is approximately 33,900 light years distant from Earth. It has the designation NGC 5272 in the New General Catalogue.
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