R Apodis

R Apodis
Observation data
Epoch J2000      Equinox J2000
Constellation Apus
Right ascension 14h 57m 52.98366s[1]
Declination −76° 39′ 45.5556″[1]
Apparent magnitude (V) 5.38
Characteristics
Spectral type K4 III:[2]
U−B color index 1.7
B−V color index 1.45
Astrometry
Radial velocity (Rv)-31.2 km/s
Proper motion (μ) RA: -68.69[1] mas/yr
Dec.: -15.71[1] mas/yr
Parallax (π)8.71 ± 0.25[1] mas
Distance370 ± 10 ly
(115 ± 3 pc)
Absolute magnitude (MV)−0.22 ± 0.16[3]
Details
Mass1.10 ± 0.18[4] M☉
Radius22.94 ± 1.65[4] R☉
Luminosity229+59
−47[4] L☉
Surface gravity (log g)1.99 ± 0.05[4] cgs
Temperature4318 ± 38[4] K
Metallicity [Fe/H]−0.29 ± 0.05[4] dex
Age5.68 ± 2.42[4] Gyr
Other designations
GCRV 8654, HR 5540, SAO 257212, CD-76° 688, IRAS 14520-7627, CPC 21.3 1817, GSC 09428-02897, 2MASS J14575300-7639454, TYC 9428-2897-1, CPD-76° 924, HD 131109, N30 3367, AAVSO 1446-76, FK5 3175, PLX 3358, GC 20057, HIP 73223, PPM 372479.
Database references
SIMBADdata

R Apodis (R Aps) is a star in the constellation Apus.

R Apodis is an orange K-type giant with an apparent magnitude of +5.38. It is approximately 370 light years from Earth. It was earlier suspected to be a variable star and given the variable star designation R Apodis. Now it is confirmed as a non-variable.[5]

References

  1. 1 2 3 4 5 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. ↑ Keenan, Philip C; McNeil, Raymond C (1989). "The Perkins catalog of revised MK types for the cooler stars". Astrophysical Journal Supplement Series. 71: 245. Bibcode:1989ApJS...71..245K. doi:10.1086/191373.
  3. ↑ da Silva, L.; et al. (November 2006), "Basic physical parameters of a selected sample of evolved stars", Astronomy and Astrophysics, 458 (2): 609–623, arXiv:astro-ph/0608160, Bibcode:2006A&A...458..609D, doi:10.1051/0004-6361:20065105
  4. 1 2 3 4 5 6 7 Jofré, E; Petrucci, R; Saffe, C; Saker, L; de la Villarmois, E. Artur; Chavero, C; Gómez, M; Mauas, P. J. D (2015). "Stellar parameters and chemical abundances of 223 evolved stars with and without planets". Astronomy & Astrophysics. 574: A50. arXiv:1410.6422. Bibcode:2015A&A...574A..50J. doi:10.1051/0004-6361/201424474.
  5. ↑ "R Aps". The International Variable Star Index. AAVSO – American Association of Variable Star Observers. Retrieved 10 April 2016.


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