NGC 6723

NGC 6723
NGC 6723
	哈伯太空望远镜拍摄的NGC 6723；视场3.5′
观测数据(J2000 历元)
分类	VII
星座	人马座
赤经	18h 59m 33.15s
赤纬	–36° 37′ 56.1″
距离	28.4 kly（8.7 kpc）
视星等 (V)	6.8
视直径(V)	11′
物理性质
Mass	3.57×105 M☉
金属量	–0.96 dex
估计年龄	13.06 Gyr
	参见：球状星团，球状星团表

NGC 6723是在人马座的一个球状星团^[6]，位置在靠近南冕座的交界处。它的视星等在6至6.8等，直径在7和11弧分，在夏普力-索耶集中度分类法的类型为VII，星团中的恒星星等为14等。

与常见的球状星团不同，NGC 6723具有较高的金属量和大量年轻恒星，原始恒星仅占总数的0.363+0.017
−%^[7]。

参考资料

^ Shapley, Harlow; Sawyer, Helen B., A Classification of Globular Clusters, Harvard College Observatory Bulletin, August 1927, 849 (849): 11–14, Bibcode:1927BHarO.849...11S.
^ ^2.0 ^2.1 Goldsbury, Ryan; et al, The ACS Survey of Galactic Globular Clusters. X. New Determinations of Centers for 65 Clusters, The Astronomical Journal, December 2010, 140 (6): 1830–1837, Bibcode:2010AJ....140.1830G, S2CID 119183070, arXiv:1008.2755 , doi:10.1088/0004-6256/140/6/1830.
^ ^3.0 ^3.1 Boyles, J.; et al, Young Radio Pulsars in Galactic Globular Clusters, The Astrophysical Journal, November 2011, 742 (1): 51, Bibcode:2011ApJ...742...51B, S2CID 118649860, arXiv:1108.4402 , doi:10.1088/0004-637X/742/1/51.
^ ^4.0 ^4.1 Data for NGC 6723. NGC/IC Project. [19 November 2013]. （原始内容存档于15 January 2013）.
^ ^5.0 ^5.1 Forbes, Duncan A.; Bridges, Terry, Accreted versus in situ Milky Way globular clusters, Monthly Notices of the Royal Astronomical Society, May 2010, 404 (3): 1203–1214, Bibcode:2010MNRAS.404.1203F, S2CID 51825384, arXiv:1001.4289 , doi:10.1111/j.1365-2966.2010.16373.x.
^ SIMBAD Astronomical Object Database. Results for NGC 6723. [2007-04-21]. （原始内容存档于2019-05-01）.
^ Lee, Jae-Woo, Multiple Stellar Populations of Globular Clusters from Homogeneous Ca–CN–CH Photometry. V. cn′_JWL as a Surrogate cn_JWL Index and NGC 6723, The Astrophysical Journal, 2019, 883 (2): 166, S2CID 201070324, arXiv:1908.06670 , doi:10.3847/1538-4357/ab3d34

Robert Burnham Jr, Burnham's Celestial Handbook: An observer's guide to the universe beyond the solar system, vol 3, p. 1558

外部链接

维基共享资源上的相关多媒体资源：NGC 6723
WikiSky上关于NGC 6723的内容：DSS2, SDSS, GALEX, IRAS, 氢α, X射线, 天文照片, 天图, 文章和图片
NGC 6723 （页面存档备份，存于互联网档案馆）

天文学目录
NGC天体表：	NGC 6721 - NGC 6722 - NGC 6723 - NGC 6724 - NGC 6725

这是一篇与星团相关的小作品。您可以通过编辑或修订扩充其内容。

[hcob849_11-1] Shapley, Harlow; Sawyer, Helen B., A Classification of Globular Clusters, Harvard College Observatory Bulletin, August 1927, 849 (849): 11–14, Bibcode:1927BHarO.849...11S.

[aj140_6_1830-2] 2.0 ^2.1 Goldsbury, Ryan; et al, The ACS Survey of Galactic Globular Clusters. X. New Determinations of Centers for 65 Clusters, The Astronomical Journal, December 2010, 140 (6): 1830–1837, Bibcode:2010AJ....140.1830G, S2CID 119183070, arXiv:1008.2755 , doi:10.1088/0004-6256/140/6/1830.

[apj742_1_51-3] 3.0 ^3.1 Boyles, J.; et al, Young Radio Pulsars in Galactic Globular Clusters, The Astrophysical Journal, November 2011, 742 (1): 51, Bibcode:2011ApJ...742...51B, S2CID 118649860, arXiv:1108.4402 , doi:10.1088/0004-637X/742/1/51.

[ngcProj-4] 4.0 ^4.1 Data for NGC 6723. NGC/IC Project. [19 November 2013]. （原始内容存档于15 January 2013）.

[mnras404_3_1203-5] 5.0 ^5.1 Forbes, Duncan A.; Bridges, Terry, Accreted versus in situ Milky Way globular clusters, Monthly Notices of the Royal Astronomical Society, May 2010, 404 (3): 1203–1214, Bibcode:2010MNRAS.404.1203F, S2CID 51825384, arXiv:1001.4289 , doi:10.1111/j.1365-2966.2010.16373.x.

[simbad-6] SIMBAD Astronomical Object Database. Results for NGC 6723. [2007-04-21]. （原始内容存档于2019-05-01）.

[7] Lee, Jae-Woo, Multiple Stellar Populations of Globular Clusters from Homogeneous Ca–CN–CH Photometry. V. cn′_JWL as a Surrogate cn_JWL Index and NGC 6723, The Astrophysical Journal, 2019, 883 (2): 166, S2CID 201070324, arXiv:1908.06670 , doi:10.3847/1538-4357/ab3d34

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