NGC 6541
From Wikipedia, the free encyclopedia
| NGC 6541 | |
|---|---|
 | |
| Observation data (J2000 epoch) | |
| Class | III[1] |
| Constellation | Corona Australis |
| Right ascension | 18h 08m 02.36s[2] |
| Declination | –43° 42′ 53.6″[2] |
| Distance | 22.8 kly (7.0 kpc)[3] |
| Apparent magnitude (V) | 6.3 |
| Apparent dimensions (V) | 15′ |
| Physical characteristics | |
| Mass | 5.72×105[4] M☉ |
| Metallicity | –1.53[5] dex |
| Estimated age | 12.93 Gyr[5] |
| Other designations | Caldwell 78 |
| See also: Globular cluster, List of globular clusters | |
NGC 6541 is a globular cluster in the southern constellation of Corona Australis. It is estimated to be around 14 billion years old.[6]
The globular cluster was discovered by Nicolò Cacciatore (1780 - 1841) at the Palermo Astronomical Observatory, Italy, on March 19, 1826. It was independently found by James Dunlop (1793 – 1848) on July 3, 1826.
References
- ↑ Shapley, Harlow; Sawyer, Helen B. (August 1927), "A Classification of Globular Clusters", Harvard College Observatory Bulletin (849): 11–14, Bibcode:1927BHarO.849...11S.
- ↑ 2.0 2.1 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.
- ↑ Paust, Nathaniel E. Q. et al. (February 2010), "The ACS Survey of Galactic Globular Clusters. VIII. Effects of Environment on Globular Cluster Global Mass Functions", The Astronomical Journal 139 (2): 476–491, Bibcode:2010AJ....139..476P, doi:10.1088/0004-6256/139/2/476.
- ↑ Boyles, J. et al. (November 2011), "Young Radio Pulsars in Galactic Globular Clusters", The Astrophysical Journal 742 (1): 51, arXiv:1108.4402, Bibcode:2011ApJ...742...51B, doi:10.1088/0004-637X/742/1/51.
- ↑ 5.0 5.1 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.
- ↑ O'Meara, Stephen James (2011). Deep-Sky Companions: The Secret Deep. Cambridge, United Kingdom: Cambridge University Press. p. 322. ISBN 0521198763.
External links
- NGC 6541 at SEDS NGC objects pages
- NGC 6541 at DOCdb (Deep Sky Observer's Companion)]
- NGC 6541 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
| ||||||||
Coordinates: 
18h 08m 02s, −43° 53′ 00″
| |||||||||||
This article is issued from Wikipedia. The text is available under the Creative Commons Attribution/Share Alike; additional terms may apply for the media files.