Beta Coronae Australis

β Coronae Australis

Location of β CrA (circled)
Observation data Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation	Corona Australis
Right ascension	19^h 10^m 01.7569^s[1]
Declination	−39° 20′ 26.866″[1]
Apparent magnitude (V)	4.117[1]
Characteristics
Spectral type	K0II[1]
U−B color index	+1.07[2]
B−V color index	+1.20[2]
R−I color index	+0.61[2]
Astrometry
Radial velocity (Rv)	2.7 ± 0.9[1] km/s
Proper motion (μ)	RA: 5.89[1] mas/yr Dec.: −36.78[1] mas/yr
Parallax (π)	6.42 ± 0.90[1] mas
Distance	approx. 510 ly (approx. 160 pc)
Absolute magnitude (MV)	−1.8[3]
Other designations
β CrA, Beta Coronae Australis, Beta CrA, CD−39 13146, CPD−39 8327, GC 26380, HD 178345, HIP 94160, HR 7259, PPM 298639, SAO 211005.[1]
Database references
SIMBAD	data

Beta Coronae Australis (Beta CrA, β Coronae Australis, β CrA) is a K-type bright giant star in the constellation of Corona Australis.^[1] It has an apparent visual magnitude of approximately 4.117.^[1] Located around 500 light-years distant, it shines with a luminosity approximately 620 times that of the Sun and has a surface temperature of 4771 K.^[4]

References

1. * bet CrA -- Star, database entry, SIMBAD. Accessed on line September 5, 2008.
2. HR 7259, database entry, The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version), D. Hoffleit and W. H. Warren, Jr., CDS ID V/50. Accessed on line September 5, 2008.
3. From apparent magnitude and parallax.
4. McDonald, I.; Zijlstra, A. A.; Boyer, M. L. (2012). "Fundamental Parameters and Infrared Excesses of Hipparcos Stars". Monthly Notices of the Royal Astronomical Society 427 (1): 343–57. arXiv:1208.2037. Bibcode:2012MNRAS.427..343M. doi:10.1111/j.1365-2966.2012.21873.x.