Loading AI tools
Globular cluster in the constellation Corona Australis From Wikipedia, the free encyclopedia
NGC 6541 (also known as Caldwell 78) is a globular cluster in the southern constellation of Corona Australis. It is estimated to be around 14 billion years old.[6]
NGC 6541 | |
---|---|
![]() NGC 6541, imaged by the Hubble Space Telescope | |
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 | |
Absolute magnitude | −8.52 |
Mass | 5.72×105[4] M☉ |
Metallicity | = –1.53[5] dex |
Estimated age | 12.93 Gyr[5] |
Other designations | Caldwell 78 |
The globular cluster was discovered by Niccolò Cacciatore at the Palermo Astronomical Observatory, Sicily, on March 19, 1826. It was independently found by James Dunlop on July 3, 1826.
The cluster is relatively small, having just 94 blue straggler stars.[7]
Seamless Wikipedia browsing. On steroids.
Every time you click a link to Wikipedia, Wiktionary or Wikiquote in your browser's search results, it will show the modern Wikiwand interface.
Wikiwand extension is a five stars, simple, with minimum permission required to keep your browsing private, safe and transparent.