NGC 6569
Globular cluster NGC 6569 |
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Photo from the Hubble Space Telescope | |
AladinLite | |
Constellation | Sagittarius |
Position equinox : J2000.0 , epoch : J2000.0 |
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Right ascension | 18 h 13 m 38.7 s |
declination | -31 ° 49 ′ 40 ″ |
Appearance | |
Concentration class | VIII |
Brightness (visual) | 9.47 likes |
Brightness (B-band) | 10.78 mag |
Angular expansion | 6.4 ' |
Physical data | |
Radial velocity | 28.1 km / s |
history | |
discovery | William Herschel |
Discovery date | July 13, 1784 |
Catalog names | |
NGC 6569 • C 1810-318 • GCl 91 • ESO 456-SC77 • GC 4389 • Bennett 106, II 201, h 3736 |
NGC 6569 is a globular cluster in the constellation Sagittarius . The globular cluster was discovered in 1784 by the astronomer William Herschel with his 18.7-inch telescope and the discovery was later recorded in the New General Catalog .