HD 97413

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HD 97413
Observation data
Epoch J2000      Equinox J2000
Constellation Centaurus
Right ascension 11h 12m 10.19s[1]
Declination −46° 16′ 00.33″[1]
Apparent magnitude (V) 6.27±0.01[2]
Characteristics
Spectral type A1 V[3]
U−B color index +0.04[4]
B−V color index +0.15[4]
Astrometry
Proper motion (μ) RA: -48.401[1] mas/yr
Dec.: 10.470[1] mas/yr
Parallax (π)11.8409 ± 0.1071[1] mas
Distance275 ± 2 ly
(84.5 ± 0.8 pc)
Absolute magnitude (MV)1.29[5]
Details[6]
A
Mass1.93+0.39
−0.19 M☉
Radius2.18+0.05
−0.08 R☉
Luminosity17.6+0.6
−0.5 L☉
Surface gravity (log g)4.04+0.10
−0.05 cgs
Temperature8,006+110
−134 K
Metallicity [Fe/H]-0.3 [7] dex
Other designations
CD−45 6771, HD 97413, HIP 57418, SAO 222635, WDS J11122-4616AB
Database references
SIMBADdata

HD 97413 is a binary star in the constellation Centaurus. With a combined magnitude of 6.27, the system is only visible under ideal conditions. HD 97143 is located 275 light-years (84 pc) away from the Solar System based on parallax, but it’s unknown if the system is drifting closer or away from it.

Properties[]

The visible component, HD 97143A, is an A-type main-sequence star with 1.93 times the Sun’s mass, and has 2.135 times the Sun’s radius. It radiates at 17 solar luminosities, and has a white-hue, which corresponds to an effective temperature of 8,006 K. The second component, HD 97143B, is a star with an apparent magnitude of 9.45, and is 0.2 arc-seconds away from the primary. [8] At a distance of 84.5 parsecs, this corresponds to a projected separation of 16.9 AU. HD 97143A is metal-deficient, with 50.12% the abundance of heavy metals compared to the Sun.

References[]

  1. ^ a b c d 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, Nancy (1978). "Michigan catalogue of two-dimensional spectral types for the HD stars". Ann Arbor : Dept. Of Astronomy, University of Michigan : Distributed by University Microfilms International, 1978-. Bibcode:1978mcts.book.....H.
  4. ^ a b Slawson, Robert W.; Hill, Robert J.; Landstreet, John D. (September 1992). "A Homogeneous Catalog of New UBV and H beta Photometry of B- and A-Type Stars in and around the Scorpius-Centaurus OB Association". The Astrophysical Journal Supplement Series. 82: 117. Bibcode:1992ApJS...82..117S. doi:10.1086/191711. ISSN 0067-0049.
  5. ^ 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.
  6. ^ 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. hdl:1721.1/124721. 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. ^ Mason, Brian D.; Wycoff, Gary L.; Hartkopf, William I.; Douglass, Geoffrey G.; Worley, Charles E. (2001-12-01). "The 2001 US Naval Observatory Double Star CD-ROM. I. The Washington Double Star Catalog". The Astronomical Journal. 122 (6): 3466–3471. Bibcode:2001AJ....122.3466M. doi:10.1086/323920. ISSN 0004-6256.
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