HD 72337

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HD 72337
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Volans
Right ascension 08h 27m 16.75s[1]
Declination −70° 05′ 36.54″[1]
Apparent magnitude (V) 5.507±0.009[2]
Characteristics
Spectral type A0V[3]
B−V color index −0.024±0.002[4]
Astrometry
Radial velocity (Rv)13.00±7.40[5] km/s
Proper motion (μ) RA: −18.627[1] mas/yr
Dec.: 45.524[1] mas/yr
Parallax (π)11.3963 ± 0.0830[1] mas
Distance286 ± 2 ly
(87.7 ± 0.6 pc)
Absolute magnitude (MV)0.85[4]
Details
Mass2.660+0.426
−0.272[6] M☉
Radius2.258+0.048
−0.027[6] R☉
Luminosity52.18+2.45
−2.62[6] L☉
Surface gravity (log g)4.156+0.077
−0.052[6] cgs
Temperature9661+252
−1660[1] K
Metallicity [Fe/H]−0.16[7] dex
Rotational velocity (v sin i)179[8] km/s
Age137[9] Myr
Other designations
30 G. Vol, CPD−69 919, HIP 41451, HR 3370, SAO 250235, GSC 09198-01581[10]
Database references
SIMBADdata

HD 72337(HR 3370) is a solitary star located in the constellation Volans. With an apparent magnitude of 5.51, it is visible to the unaided eye but only under ideal conditions.

Velocity[]

HD 72337 is currently located 286 light years away from the Solar System, but was 234 light years away about 1 million years ago.[citation needed] It is currently magnitude 5.13, and is drifting away at a rate of 13 km/s.

Properties[]

This is an A-type star, although some sources classify as a B9 star.[11] It has twice the radius and mass of the Sun, and radiates at 52 times the luminosity of the Sun. It has an effective temperature of 9,661 K, which gives HD 72337 a white hue. It has a high surface gravity, and has 69% of the solar abundance of heavy metals, making HD 72337 slightly metal deficient. HD 72337 rotates rapidly with a projected rotational velocity of 149 km/s, and at a young age of 137 million years old it is still on the main sequence.

References[]

  1. ^ Jump up to: a b c d e 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. ^ Jump up to: 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. ^ Kharchenko, N. V.; Scholz, R.-D.; Piskunov, A. E.; Röser, S.; Schilbach, E. (2007-11-01). "Astrophysical supplements to the ASCC-2.5: Ia. Radial velocities of ~55000 stars and mean radial velocities of 516 Galactic open clusters and associations". Astronomische Nachrichten. 328 (9): 889–896. arXiv:0705.0878. Bibcode:2007AN....328..889K. doi:10.1002/asna.200710776. ISSN 0004-6337. S2CID 119323941.
  6. ^ Jump up to: a b c d Stassun, Keivan G.; Oelkers, Ryan J.; Paegert, Martin; Torres, Guillermo; Pepper, Joshua; De Lee, Nathan; Collins, Kevin; Latham, David W.; Muirhead, Philip S.; Chittidi, Jay; Rojas-Ayala, Bárbara (2019-10-01). "The Revised TESS Input Catalog and Candidate Target List". The Astronomical Journal. 158 (4): 138. arXiv:1905.10694. Bibcode:2019AJ....158..138S. doi:10.3847/1538-3881/ab3467. ISSN 0004-6256. S2CID 166227927.
  7. ^ 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.
  8. ^ Gray, David F. (2005-09-01). The Observation and Analysis of Stellar Photospheres. Bibcode:2005oasp.book.....G.
  9. ^ David, Trevor J.; Hillenbrand, Lynne A. (2015-05-01). "The Ages of Early-type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to Hosts and Prospective Hosts of Directly Imaged Exoplanets". The Astrophysical Journal. 804 (2): 146. arXiv:1501.03154. Bibcode:2015ApJ...804..146D. doi:10.1088/0004-637X/804/2/146. ISSN 0004-637X. S2CID 33401607.
  10. ^ "HD 72337". SIMBAD. Centre de données astronomiques de Strasbourg.
  11. ^ Cannon, A. J.; Pickering, E. C. (1993-10-01). "VizieR Online Data Catalog: Henry Draper Catalogue and Extension (Cannon+ 1918-1924; ADC 1989)". VizieR Online Data Catalog. 3135. Bibcode:1993yCat.3135....0C.
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