NGC 6569

NGC 6569
Hubble Space Telescope image of NGC 6569
Observation data (J2000 epoch)
ClassVIII
ConstellationSagittarius
Right ascension18h 13m 38.88s
Declination−31° 49′ 35.2″
Distance35.5 kly (10.9 kpc)
Apparent magnitude (V)9.47
Apparent dimensions (V)7.0′ × 7.0′
Physical characteristics
Metallicity[Fe/H] = −0.76 dex
Other designationsGCl 91, ESO 456-77, VDBH 260
See also: Globular cluster, List of globular clusters

NGC 6569 is a globular cluster in the constellation Sagittarius. It has an apparent magnitude of about 9.5, and an apparent diameter of 7 arc minutes, and class VIII with stars of magnitude 15 and dimmer. It is about 2 degrees south east of Gamma2 Sagittarii. The globular cluster was discovered in 1784 by the astronomer William Herschel with his 18.7-inch telescope and was catalogued later in the New General Catalogue.

References

  1. 1 2 3 4 5 "NGC 6569". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 13 February 2017.
  2. 1 2 3 "NGC 5634". Retrieved 7 January 2016.
  3. ↑ William E. Harris. "Catalog of Parameters for Milky Way Globular Clusters". Retrieved 13 February 2017.
  4. ↑ Courtney Seligman. "New General Catalog Objects: NGC 6550–6599". Retrieved 13 February 2017.