NGC 6541

NGC 6541
Observation data (J2000 epoch)
Class	III[1]
Constellation	Corona Australis
Right ascension	18^h 08^m 02.36^s[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	5.72×10^5[4] M☉
Metallicity	$\begin{smallmatrix}\left[{Fe}/{H}\right]\end{smallmatrix}$ = –1.53[5] dex
Estimated age	12.93 Gyr[5]
Other designations	Caldwell 78

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

1. Shapley, Harlow; Sawyer, Helen B. (August 1927), "A Classification of Globular Clusters", Harvard College Observatory Bulletin (849): 11–14, Bibcode:1927BHarO.849...11S.
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:1008.2755, Bibcode:2010AJ....140.1830G, doi:10.1088/0004-6256/140/6/1830.
3. 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.
4. 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. 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.
6. 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: 18^h 08^m 02^s, −43° 53′ 00″