NGC 6723

NGC 6723是在人馬座的一個球狀星團^[6]，位置在靠近南冕座的交界處。它的視星等在6至6.8等，直徑在7和11弧分，在夏普力-索耶集中度分類法的類型為VII，星團中的恆星星等為14等。

快速預覽 NGC 6723, 觀測數據(J2000 曆元) ...

關閉

與常見的球狀星團不同，NGC 6723具有較高的金屬量和大量年輕恆星，原始恆星僅佔總數的0.363+0.017
−%^[7]。

參考資料

[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.
[2]
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]
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]
Data for NGC 6723. NGC/IC Project. [19 November 2013]. （原始內容存檔於15 January 2013）.
[5]
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.
[6]
SIMBAD Astronomical Object Database. Results for NGC 6723. [2007-04-21]. （原始內容存檔於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