HD 71863

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HD 71863
Observation data
Epoch J2000      Equinox J2000
Constellation Volans
Right ascension 08h 25m 51.6s[1]
Declination −64° 36′ 02.22″[1]
Apparent magnitude (V) 5.94±0.01[2]
Characteristics
Spectral type G8/K0 III[3]
B−V color index 0.971±0.002[4]
Astrometry
Radial velocity (Rv)25.59±1.70[1] km/s
Proper motion (μ) RA: -15.063[1] mas/yr
Dec.: +14.553[1] mas/yr
Parallax (π)7.7402 ± 0.0700[1] mas
Distance421 ± 4 ly
(129 ± 1 pc)
Absolute magnitude (MV)+0.7[4]
Details
Mass2.74+0.26
−0.88[5] M☉
Radius11.29+0.15
−0.21[1] R☉
Luminosity72.33±0.83[1] L☉
Surface gravity (log g)2.47[6] cgs
Temperature5008+48
−33[1] K
Metallicity [Fe/H]−0.1[5] dex
Rotational velocity (v sin i)2.7±1.1[7] km/s
Other designations
CD−64 328, HD 71863, HIP 41321, HR 3346, SAO 250226
Database references
SIMBADdata

HD 71863 (HR 3346) is a star in the constellation Volans. With an apparent magnitude of 5.94, it is barely visible to the naked eye. This star is located 421 light-years away based on parallax, but is drifting with a radial velocity of 25.6 km/s.

Properties[]

HD 71863 has a classification of “G8/K0III” , which states that it is a giant star with the characteristics of a G8 and K0 star. It has nearly 3 times the Sun’s mass, but has expanded to 11 times the Sun’s girth. HD 71863 has 72 times the Sun’s luminosity, and rotates slowly, with a projected rotational velocity of 2.7 km/s. With an effective temperature of 5,008 K, it has a yellowish-orange hue. HD 71863 is metal deficient, with 79% the abundance of heavy metals compared to the Sun.

Nearby Cluster[]

HD 71863 is located near a group of stars moving with a Carinae, but is just moving with them by coincidence, and has no relation to the group.[8]

References[]

  1. ^ a b c d e f g h Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
  2. ^ Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P.; Wicenec, A. (2000-03-01). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27–L30. Bibcode:2000A&A...355L..27H. ISSN 0004-6361.
  3. ^ Houk, N.; Cowley, A. P. (1975). "University of Michigan Catalogue of two-dimensional spectral types for the HD stars. Volume I. Declinations -90_ to -53_f0". University of Michigan Catalogue of Two-dimensional Spectral Types for the HD Stars. Volume I. Declinations -90_ to -53_f0., by Houk, N.; Cowley, A. P.. Ann Arbor, MI (USA): Department of Astronomy, University of Michigan, 19 + 452 P. Bibcode:1975mcts.book.....H.
  4. ^ a b Anderson, E.; Francis, Ch. (2012-05-01). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331–346. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. ISSN 1063-7737. S2CID 119257644.
  5. ^ a b Charbonnel, C.; Lagarde, N.; Jasniewicz, G.; North, P. L.; Shetrone, M.; Krugler Hollek, J.; Smith, V. V.; Smiljanic, R.; Palacios, A.; Ottoni, G. (2020-01-01). "Lithium in red giant stars: Constraining non-standard mixing with large surveys in the Gaia era". Astronomy and Astrophysics. 633: A34. arXiv:1910.12732. Bibcode:2020A&A...633A..34C. doi:10.1051/0004-6361/201936360. ISSN 0004-6361. S2CID 204907220.
  6. ^ Anders, F.; Khalatyan, A.; Chiappini, C.; Queiroz, A. B.; Santiago, B. X.; Jordi, C.; Girardi, L.; Brown, A. G. A.; Matijevic, G.; Monari, G.; Cantat-Gaudin, T. (2019-08-01). "Photo-astrometric distances, extinctions, and astrophysical parameters for Gaia DR2 stars brighter than G = 18". Astronomy and Astrophysics. 628: A94. arXiv:1904.11302. Bibcode:2019A&A...628A..94A. doi:10.1051/0004-6361/201935765. ISSN 0004-6361. S2CID 131780028.
  7. ^ De Medeiros, J. R.; Alves, S.; Udry, S.; Andersen, J.; Nordström, B.; Mayor, M. (2014-01-01). "A catalog of rotational and radial velocities for evolved stars. V. Southern stars". Astronomy and Astrophysics. 561: A126. arXiv:1312.3474. Bibcode:2014A&A...561A.126D. doi:10.1051/0004-6361/201220762. ISSN 0004-6361. S2CID 54046583.
  8. ^ Cantat-Gaudin, T.; Vallenari, A.; Sordo, R.; Pensabene, F.; Krone-Martins, A.; Moitinho, A.; Jordi, C.; Casamiquela, L.; Balaguer-Núnez, L.; Soubiran, C.; Brouillet, N. (2018-07-01). "Characterising open clusters in the solar neighbourhood with the Tycho-Gaia Astrometric Solution". Astronomy and Astrophysics. 615: A49. arXiv:1801.10042. Bibcode:2018A&A...615A..49C. doi:10.1051/0004-6361/201731251. ISSN 0004-6361. S2CID 56324345.
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