HD 97413

Last updated
HD 97413
Vela constellation map.svg
Red circle.svg
Location of HD 97413 (circled)
Observation data
Epoch J2000       Equinox J2000
Constellation Centaurus [1]
Right ascension 11h 12m 10.18976s [2]
Declination −46° 16′ 00.3202″ [2]
Apparent magnitude  (V)6.27±0.01 [3]
Characteristics
Spectral type A1 V [4]
U−B color index +0.04 [5]
B−V color index +0.15 [5]
Astrometry
Proper motion (μ)RA: −46.711 mas/yr [2]
Dec.: +9.593 mas/yr [2]
Parallax (π)10.1866±0.155  mas [2]
Distance 320 ± 5  ly
(98 ± 1  pc)
Absolute magnitude  (MV)+1.5 [1]
Details
A
Mass 1.94±0.11 [6]   M☉
Radius 2.18+0.05
−0.08 [7]   R☉
Luminosity 19.6 [8]   L☉
Surface gravity (log g)4.07±0.05 [6]   cgs
Temperature 7,800 [8]   K
Metallicity [Fe/H]−0.29 [9]   dex
Other designations
CD−45°6771, CPD−45°5279, GC 15400, HD 97413, HIP 54718, SAO 222635, WDS J11122-4616AB [10]
Database references
SIMBAD data

HD 97413 is a binary star located in the southern constellation Centaurus. The system has a combined magnitude of 6.27, [3] placing it near the limit for naked eye visibility. Based on parallax measurements from the Gaia spacecraft, the system is located 320 light years away from the Solar System. [2]

The objects binarity was detected in a Hipparcos survey. The two components can't be distinguished because both stars have an angular separation of 0.01″ . [11] Nevertheless, speckle interferometry revealed the components to have a 2.6 magnitude difference. [12] They are located along a position angle of 250°. [11]

The visible component – HD 97413 A – has a stellar classification of A1 V, indicating that it is an ordinary A-type main-sequence star. It has 1.94 times the mass of the Sun [6] and a radius of 2.18  R☉. [7] It radiates 19.6 times the luminosity of the Sun [8] from its photosphere at an effective temperature of 7,800  K , [8] giving it a white hue. However, this is not typical for an A1 star. Parameters determined by Gaia's extinction reveal HD 97413 A to have an iron abundance half of the Sun's, [9] making it metal deficient.

References

  1. 1 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. XHIP record for this object at VizieR.
  2. 1 2 3 4 5 6 Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv: 2208.00211 . Bibcode:2023A&A...674A...1G. doi: 10.1051/0004-6361/202243940 . S2CID   244398875. Gaia DR3 record for this source at VizieR.
  3. 1 2 Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P.; Wicenec, A. (March 2000). "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.
  4. ↑ Houk, Nancy (1978). Michigan catalogue of two-dimensional spectral types for the HD stars. Bibcode:1978mcts.book.....H.
  5. 1 2 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 . eISSN   1538-4365. ISSN   0067-0049.
  6. 1 2 3 Allende Prieto, C.; Lambert, D. L. (December 1999). "Fundamental parameters of nearby stars from the comparison with evolutionary calculations: masses, radii and effective temperatures". Astronomy and Astrophysics. 352: 555–562. arXiv: astro-ph/9911002 . Bibcode:1999A&A...352..555A. ISSN   0004-6361.
  7. 1 2 Stassun, Keivan G.; et al. (9 September 2019). "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 . eISSN   1538-3881.
  8. 1 2 3 4 McDonald, I.; Zijlstra, A. A.; Boyer, M. L. (21 November 2012). "Fundamental parameters and infrared excesses of Hipparcos stars: Parameters and IR excesses from Hipparcos". Monthly Notices of the Royal Astronomical Society. 427 (1): 343–357. arXiv: 1208.2037 . Bibcode:2012MNRAS.427..343M. doi: 10.1111/j.1365-2966.2012.21873.x . eISSN   1365-2966. ISSN   0035-8711.
  9. 1 2 Anders, F.; et al. (August 2019). "Photo-astrometric distances, extinctions, and astrophysical parameters for Gaia DR2 stars brighter than G = 18". Astronomy & Astrophysics. 628: A94. arXiv: 1904.11302 . Bibcode:2019A&A...628A..94A. doi: 10.1051/0004-6361/201935765 . eISSN   1432-0746. ISSN   0004-6361.
  10. ↑ "HD 97413". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved September 10, 2022.
  11. 1 2 Mason, Brian D.; Wycoff, Gary L.; Hartkopf, William I.; Douglass, Geoffrey G.; Worley, Charles E. (December 2001). "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.
  12. ↑ Tokovinin, Andrei; Mason, Brian D.; Mendez, Rene A.; Horch, Elliott P.; Briceño, Cesar (8 July 2019). "Speckle Interferometry at SOAR in 2018". The Astronomical Journal. 158 (1): 48. arXiv: 1905.10436 . Bibcode:2019AJ....158...48T. doi: 10.3847/1538-3881/ab24e4 . eISSN   1538-3881.
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