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NGC 6584.
NGC 6584是一个球状星团,位于望远镜座中的天坛座θ附近,距离地球为45,000光年[2]。它是一个奥斯特霍夫I型星团,包含至少69颗变星,其中大部分是天琴座RR型变星:46颗星被确定为RRab型变星; 15颗RRc型变星、1颗RRe型变星、4颗食双星和3颗长周期变星[4]。
NGC 6584距银河中心约4,000秒差距,距银河平面约2,500秒差距[5]。
参考资料
- ^ 1.0 1.1 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.
- ^ 2.0 2.1 Streicher, Magda. A Spyglass Telescope (PDF). Deepsky Delights. August 2009, 68: 168 [29 September 2012]. Bibcode:2009MNSSA..68..168S. (原始内容 (PDF)存档于2020-04-04).
- ^ 3.0 3.1 High-resolution Spectroscopic Abundances of Red Giant Branch Stars in NGC 6584 and NGC 7099. [2024-02-08]. (原始内容存档于2024-02-07).
- ^ Toddy, Joseph M.; Johnson, Elliott W.; Darragh, Andrew N.; Murphy, Brian W. New Variable Stars in the Globular Cluster NGC 6584. Journal of the Southeastern Association for Research in Astronomy. 2012, 6: 63–71. Bibcode:2012JSARA...6...63T. arXiv:1205.1034
.
- ^ "Physical Parameters of Galactic Globular Clusters" by S. Djorgovski
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