Astronomy:NGC 6352

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NGC 6352
NGC 6352.jpg
Observation data (J2000 epoch)
Right ascension 17h 25m 29.11s[2]
Declination–48° 25′ 19.8″[2]
Distance19.57 kly (6.00 kpc)[3]
Apparent magnitude (V)+7.8[3]
Apparent dimensions (V)7′.1[4]
Physical characteristics
Mass3.7×104[5] M
Metallicity[math]\displaystyle{ \begin{smallmatrix}\left[\ce{Fe}/\ce{H}\right]\end{smallmatrix} }[/math] = –0.70[6] dex
Estimated age12.67 Gyr[6]
Other designationsCaldwell 81, Cr 328
See also: Globular cluster, List of globular clusters

NGC 6352 (also known as Caldwell 81) is a globular cluster in the southern constellation Ara. A telescope with a 15 cm (5.9 in) aperture is required to resolve the stars within this loose cluster.[3]


  1. Shapley, Harlow; Sawyer, Helen B. (August 1927), "A Classification of Globular Clusters", Harvard College Observatory Bulletin 849 (849): 11–14, Bibcode1927BHarO.849...11S. 
  2. 2.0 2.1 Goldsbury, Ryan et al. (December 2010), "The ACS Survey of Galactic Globular Clusters. X. New Determinations of Centers for 65 Clusters", The Astronomical Journal 140 (6): 1830–1837, doi:10.1088/0004-6256/140/6/1830, Bibcode2010AJ....140.1830G. 
  3. 3.0 3.1 3.2 Dunlop, Storm (2005). Atlas of the Night Sky. Harper Collins. ISBN 978-0-00-717223-8. 
  4. Stephen James O'Meara, Deep Sky Companions: The Caldwell Objects, ISBN:0-521-82796-5, p 324.
  5. Marks, Michael; Kroupa, Pavel (August 2010), "Initial conditions for globular clusters and assembly of the old globular cluster population of the Milky Way", Monthly Notices of the Royal Astronomical Society 406 (3): 2000–2012, doi:10.1111/j.1365-2966.2010.16813.x, Bibcode2010MNRAS.406.2000M.  Mass is from MPD on Table 1.
  6. 6.0 6.1 Forbes, Duncan A.; Bridges, Terry (May 2010), "Accreted versus in situ Milky Way globular clusters", Monthly Notices of the Royal Astronomical Society 404 (3): 1203–1214, doi:10.1111/j.1365-2966.2010.16373.x, Bibcode2010MNRAS.404.1203F. 

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