NGC 6569

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Globular cluster
NGC 6569
Photo from the Hubble Space Telescope
Photo from the Hubble Space Telescope
AladinLite
Constellation Sagittarius
Position
equinoxJ2000.0 , epoch : J2000.0
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 .

Individual evidence

  1. NASA / IPAC EXTRAGALACTIC DATABASE
  2. Harlow Shapley, Helen B. Sawyer: A Classification of Globular Clusters . In: Harvard College Observatory Bulletin . tape 849 , 1927, pp. 11-14 , bibcode : 1927BHarO.849 ... 11S .
  3. a b c SIMBAD ( English ) Retrieved March 18, 2011.
  4. SEDS : NGC 6569
  5. Seligman