NGC 6584

NGC 6584
Observation data (J2000 epoch)
Constellation Telescopium
Right ascension 18h 18m 37.60s[1]
Declination –−52° 12′ 56.8″[1]
Distance 45000[2]
Apparent dimensions (V) 7.9'
Physical characteristics

NGC 6584 is a globular cluster in the constellation Telescopium that lies near Theta Arae and is 45000 light-years distant.[2] It is an Oosterhoff type I cluster, and contains at least 69 variable stars, most of which are RR Lyrae variables: 46 stars were identified as RRab variables, 15 as RRc variables, 1 RRe variable, 4 eclipsing binaries and 3 long period variables.[3] NGC 6584 is about 4 kpc from the Galactic center and about 2.7 kpc from the Galactic plane.[4]

References

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  1. 1 2 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:1008.2755Freely accessible, Bibcode:2010AJ....140.1830G, doi:10.1088/0004-6256/140/6/1830.
  2. 1 2 Streicher, Magda (August 2009). "A Spyglass Telescope" (PDF). Deepsky Delights. The Astronomical Society of Southern Africa. Retrieved 29 September 2012.
  3. ↑ Toddy, Joseph M.; Johnson, Elliott W.; Darragh, Andrew N.; Murphy, Brian W. (2012). "New Variable Stars in the Globular Cluster NGC 6584". Journal of the Southeastern Association for Research in Astronomy. 6: 63–71. arXiv:1205.1034Freely accessible. Bibcode:2012JSARA...6...63T.
  4. ↑ "Physical Parameters of Galactic Globular Clusters" by S. Djorgovski


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