NGC 6569 is a globular cluster in the constellation Sagittarius. It has an apparent magnitude of about 9.5,[1] and an apparent diameter of 7 arc minutes, and class VIII with stars of magnitude 15 and dimmer.[2] 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.[4]

References

  1. ^ a b c d e "NGC 6569". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 13 February 2017.
  2. ^ a b c "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.
  • Media related to NGC 6569 at Wikimedia Commons


Allikas: https://en.wikipedia.org/wiki/NGC_6569
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