https://www.weblio.jp/content/NGC_6352

NGC 6352（Caldwell 81）は、さいだん座にある球状星団である。

集中度は粗く、星団内の個々の星を分離して観望するには、口径15cmの望遠鏡が必要である^[1]。

出典

^ ^a ^b ^c Dunlop, Storm (2005). Atlas of the Night Sky. Harper Collins. ISBN 0-00-717223-0.
^ Stephen James O'Meara, Deep Sky Companions: The Caldwell Objects, ISBN 0-521-82796-5, p 324.
^ Shapley, Harlow; Sawyer, Helen B. (August 1927), “A Classification of Globular Clusters”, Harvard College Observatory Bulletin (849): 11–14, Bibcode 1927BHarO.849...11S.
^ ^a ^b 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, arXiv:1008.2755, Bibcode 2010AJ....140.1830G, doi:10.1088/0004-6256/140/6/1830.
^ 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, arXiv:1004.2255, Bibcode 2010MNRAS.406.2000M, doi:10.1111/j.1365-2966.2010.16813.x. Mass is from M_PD on Table 1.
^ ^a ^b 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, arXiv:1001.4289, Bibcode 2010MNRAS.404.1203F, doi:10.1111/j.1365-2966.2010.16373.x.