HD 88206

HD 88206 is a star in the southern constellation of Vela. It has the Bayer designation Q Velorum and the Gould designation 186G Velorum; HD 88206 is the identifier from the Henry Draper catalogue. The star has a blue-white hue and is faintly visible to the naked eye with an apparent visual magnitude of 4.85.[2]

This article is about Q Velorum. For q Velorum, see HD 88955.
HD 88206
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Vela
Right ascension 10h 08m 56.2399s[1]
Declination −51° 48′ 40.5278″[1]
Apparent magnitude (V) 4.85[2]
Characteristics
Spectral type B3III/IV[3]
B−V color index −0.120±0.004[2]
Astrometry
Radial velocity (Rv)+14.0±4.2[2] km/s
Proper motion (μ) RA: −15.744±0.338[1] mas/yr
Dec.: −0.264±0.352[1] mas/yr
Parallax (π)2.6802 ± 0.2055[1] mas
Distance1,220 ± 90 ly
(370 ± 30 pc)
Absolute magnitude (MV)−3.19[2]
Details
Mass9.1±0.2[4] M☉
Radius4.5[5] R☉
Luminosity (bolometric)9,580[6] L☉
Temperature17,900[6] K
Age23.8±2.3[4] Myr
Other designations
186G Vel, Q Velorum, CD−51°4507, HD 88206, HIP 49712, HR 3990, SAO 237736[7]
Database references
SIMBADdata

Parallax measurements provide a distance estimate of approximately 1,220 light years from the Sun. It is drifting further away with a radial velocity of +14 km/s.[2] Although a young star and positioned in the general vicinity of the Scorpius–Centaurus Association, it is most likely not a member.[8]

This massive star has a stellar classification of B3III/IV,[3] which suggests it is entering the giant stage of its evolution. It is 24[4] million years old with 9[4] times the mass of the Sun and about 4.5[5] times the Sun's radius. The star is radiating 9,580[6] times the luminosity of the Sun from its photosphere at an effective temperature of about 17,900 K.[6]

References
  1. 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. Anderson, E.; Francis, Ch. (2012), "XHIP: An extended hipparcos compilation", Astronomy Letters, 38 (5): 331, arXiv:1108.4971, Bibcode:2012AstL...38..331A, doi:10.1134/S1063773712050015.
  3. Houk, Nancy (1978), Michigan catalogue of two-dimensional spectral types for the HD stars, 2, Ann Arbor: Dept. of Astronomy, University of Michigan, Bibcode:1978mcts.book.....H
  4. Tetzlaff, N.; et al. (January 2011), "A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun", Monthly Notices of the Royal Astronomical Society, 410 (1): 190–200, arXiv:1007.4883, Bibcode:2011MNRAS.410..190T, doi:10.1111/j.1365-2966.2010.17434.x
  5. Pasinetti Fracassini, L. E.; et al. (February 2001), "Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS)", Astronomy and Astrophysics (Third ed.), 367 (2): 521–524, arXiv:astro-ph/0012289, Bibcode:2001A&A...367..521P, doi:10.1051/0004-6361:20000451
  6. Hohle, M. M.; et al. (April 2010), "Masses and luminosities of O- and B-type stars and red supergiants", Astronomische Nachrichten, 331 (4): 349, arXiv:1003.2335, Bibcode:2010AN....331..349H, doi:10.1002/asna.200911355
  7. "Q Vel". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-09-27.
  8. Gutierrez-Moreno, Adelina; Moreno, Hugo (June 1968), "A Photometric Investigation of the Scorpio-Centaurus Association", Astrophysical Journal Supplement, 15: 459, Bibcode:1968ApJS...15..459G, doi:10.1086/190168
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