William Henry Smyth

ngc 6333,globular cluster

Messier 9

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Messier 9 (M9) is a globular cluster located in the southern constellation Ophiuchus.

The cluster has the designation NGC 6333 in the new General Catalogue. It lies at a distance of 25,800 light years from Earth. With an apparent magnitude of 8.42, M9 is too faint to be seen with the naked eye. The cluster was discovered by Charles Messier, who added it to his catalogue on May 28, 1764.
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m5,ngc 5904

Messier 5

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Messier 5 (M5) is a bright globular cluster located in the northern constellation Serpens.

The cluster lies at a distance of 24,500 light years from Earth, in the galactic halo of the Milky Way. It has the designation NGC 5904 in the New General Catalogue.

With an apparent magnitude of 6.65, Messier 5 can be seen without binoculars, but only under extremely dark skies and it only appears as a faint star near the star 5 Serpentis. Binoculars will reveal the object to not be a star, but a fuzzy patch of light, and small telescopes will show a bright glowing core.
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m4,ngc 6121,globular cluster

Messier 4

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Messier 4 (M4) is a bright globular cluster located in the southern constellation Scorpius.

It lies at an approximate distance of 7,200 light years from Earth and has an apparent magnitude of 5.9. The cluster has the designation NGC 6121 in the New General Catalogue.
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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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