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Messier 68 (also known as M68 or NGC 4590) is a globular cluster found in the east south-east of Hydra, away from its precisely equatorial part. It was discovered by Charles Messier in 1780. William Herschel described it as "a beautiful cluster of stars, extremely rich, and so compressed that most of the stars are blended together".
These are globular clusters within the halo of the Milky Way galaxy. The diameter is in minutes of arc as seen from Earth. For reference, the J2000 epoch celestial coordinates of the Galactic Center are right ascension 17 h 45 m 40.04 s, declination −29° 00′ 28.1″.
The first known globular cluster, now called M 22, was discovered in 1665 by Abraham Ihle, a German amateur astronomer. [4] [5] [6] The cluster Omega Centauri, easily visible in the southern sky with the naked eye, was known to ancient astronomers like Ptolemy as a star, but was reclassified as a nebula by Edmond Halley in 1677, [7] then finally as a globular cluster in the early 19th century ...
NGC 5986 is a globular cluster of stars in the southern constellation of Lupus, located at a distance of approximately 34 kilolight-years from the Sun. [3] It was discovered by Scottish astronomer James Dunlop on May 10, 1826.
The cluster hosts 27 known blue stragglers, [4] of which five are short period SX Phoenicis variable stars. [9] NGC 5053 is a relatively low mass cluster with a low core concentration factor of 1.32. It sports a stream of tidal debris to the west with a projected length of 1.7 kpc. This stream may have been created through shock-induced ...
The location of NGC 5466 (circled in red) NGC 5466 imaged with a 32-inch telescope NGC 5466 is a class XII globular cluster in the constellation Boötes.Located 51,800 light years from Earth and 52,800 light years from the Galactic Center, it was discovered by William Herschel on May 17, 1784, as H VI.9.
This implies that NGC 362 is a relatively young globular cluster. [6] It also has an overabundance of binary stars, and an exceptionally tight core 13 light-years in diameter. [ 6 ] The orbit of NGC 362 is highly eccentric, taking it to within 3,260 light-years of the Galactic Center .
See also: Globular cluster, List of globular clusters Messier 107 or M107 , also known as NGC 6171 or the Crucifix Cluster , is a very loose globular cluster in a very mildly southern part of the sky close to the equator in Ophiuchus , and is the last such object in the Messier Catalogue .