Delta Coronae Australis

δ Coronae Australis

Observation data Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation	Corona Australis
Right ascension	19^h 08^m 20.96867^s
Declination	−40° 29′ 48.1248″
Apparent magnitude (V)	4.58
Characteristics
Spectral type	K1III
Astrometry
Radial velocity (Rv)	20.30 ± 0.8 km/s
Proper motion (μ)	RA: 46.49 ± 0.48[1] mas/yr Dec.: −26.18 ± 0.27[1] mas/yr
Parallax (π)	18.27 ± 0.35[1] mas
Distance	179 ± 3 ly (55 ± 1 pc)
Absolute magnitude (MV)	0.93[2]
Details
Mass	1.64[2] M☉
Luminosity	53[3] L☉
Surface gravity (log g)	4.13 ± 0.05 cgs
Temperature	4801[3] K
Metallicity [Fe/H]	0.01[2] dex
Other designations
δ CrA, Delta Coronae Australis, Gamma CrA, HD 177873, HIP 94005, HR 7242, SAO 229513
Database references
SIMBAD	data

Delta Coronae Australis (δ CrA), is a star located in the constellation Corona Australis. Located around 179 light-years distant, it shines with a luminosity approximately 53 times that of the Sun and has a surface temperature of 4801 K.^[3] It is an orange giant of spectral type K1III that is around 1.64 times as massive as the Sun.^[2]

References

1. van Leeuwen, F. (November 2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.
2. Liu, Y. J.; Zhao, G.; Shi, J. R.; Pietrzyński, G.; Gieren, W. (2007). "The abundances of nearby red clump giants". Monthly Notices of the Royal Astronomical Society. 382 (2): 553–66. Bibcode:2007MNRAS.382..553L. doi:10.1111/j.1365-2966.2007.11852.x.
3. 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.