Langbahn Team – Weltmeisterschaft

HD 86267

HD 86267
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Antlia
Right ascension 09h 56m 35.4937s[1]
Declination −33° 25′ 06.587″[1]
Apparent magnitude (V) 5.82±0.01[2]
Characteristics
Evolutionary stage RGB[1]
Spectral type K1 III[3]
B−V color index +1.2[4]
Astrometry
Radial velocity (Rv)3.7±0.4[5] km/s
Proper motion (μ) RA: +34.064 mas/yr[1]
Dec.: +22.102 mas/yr[1]
Parallax (π)6.3494 ± 0.0453 mas[1]
Distance514 ± 4 ly
(157 ± 1 pc)
Absolute magnitude (MV)−0.15[6]
Details
Mass1.73+1.24
−0.71[7] M☉
Radius19.7[8] R☉
Luminosity158±11[7] L☉
Surface gravity (log g)1.86[9] cgs
Temperature4430±110[7] K
Metallicity [Fe/H]−0.15[10] dex
Rotational velocity (v sin i)<1[11] km/s
Other designations
36 G. Antliae[12], CD−32°6895, CPD−32°2771, FK5 2796, GC 13695, HD 86267, HIP 48748, HR 3932, SAO 200889[13]
Database references
SIMBADdata

HD 86267, also known as HR 3932, is a solitary[14] orange-hued star located in the southern constellation Antlia. It has an apparent magnitude of 5.82,[2] allowing it to be faintly seen with the naked eye. Parallax measurements place it a distance of 514 light years[1] and it is currently receding with a heliocentric radial velocity of 3.7 km/s.[5]

HD 86267 has a stellar classification of K1 III,[3] indicating that it is a red giant. At present it has 1.73 times the mass of the Sun[7] but has expanded to 19.7 times its girth.[8] It shines with a luminosity of 158 L☉ from its enlarged photosphere at an effective temperature of 4,430 K.[7] It is a member of the old disk population, having a metallicity 71% that of the Sun.[10] The value means that it is metal deficient. Its current rotation rate is too low to be measured accurately.[11]

References

  1. ^ a b c d e f 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.
  2. ^ a b 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.
  3. ^ a b Houk, N. (1982). Michigan Catalogue of Two-dimensional Spectral Types for the HD stars. Volume_3. Declinations −40° to −26°. Bibcode:1982mcts.book.....H.
  4. ^ Johnson, H. L.; Mitchell, R. I.; Iriarte, B.; Wisniewski, W. Z. (1966). "UBVRIJKL Photometry of the Bright Stars". Communications of the Lunar and Planetary Laboratory. 4: 99–110. Bibcode:1966CoLPL...4...99J.
  5. ^ a b Gontcharov, G. A. (November 2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759–771. arXiv:1606.08053. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065. eISSN 1562-6873. ISSN 1063-7737. S2CID 119231169.
  6. ^ Anderson, E.; Francis, Ch. (May 2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331–346. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. eISSN 1562-6873. ISSN 1063-7737. S2CID 255204555.
  7. ^ a b c d e Charbonnel, C.; Lagarde, N.; Jasniewicz, G.; North, P. L.; Shetrone, M.; Krugler Hollek, J.; Smith, V. V.; Smiljanic, R.; Palacios, A.; Ottoni, G. (January 2020). "Lithium in red giant stars: Constraining non-standard mixing with large surveys in the Gaia era". Astronomy & Astrophysics. 633: A34. arXiv:1910.12732. Bibcode:2020A&A...633A..34C. doi:10.1051/0004-6361/201936360. eISSN 1432-0746. ISSN 0004-6361.
  8. ^ a b 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.
  9. ^ 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. ^ a b Eggen, Olin J. (April 1989). "Large and kinematically unbiased samples of G- and K-type stars. IV - Evolved stars of the old disk population". Publications of the Astronomical Society of the Pacific. 101: 366. Bibcode:1989PASP..101..366E. doi:10.1086/132442. eISSN 1538-3873. ISSN 0004-6280.
  11. ^ a b De Medeiros, J. R.; Alves, S.; Udry, S.; Andersen, J.; Nordström, B.; Mayor, M. (January 2014). "A catalog of rotational and radial velocities for evolved stars: V. Southern stars⋆⋆⋆". Astronomy & Astrophysics. 561: A126. arXiv:1312.3474. Bibcode:2014A&A...561A.126D. doi:10.1051/0004-6361/201220762. ISSN 0004-6361.
  12. ^ Gould, Benjamin Apthorp (1878). "Uranometria Argentina : brillantez y posicion de las estrellas fijas, hasta la septima magnitud, comprendidas dentro de cien grados del polo austral : con atlas". Resultados del Observatorio Nacional Argentino. 1. Bibcode:1879RNAO....1.....G.
  13. ^ "HR 3932". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 4 August 2022.
  14. ^ Eggleton, P. P.; Tokovinin, A. A. (11 September 2008). "A catalogue of multiplicity among bright stellar systems". Monthly Notices of the Royal Astronomical Society. 389 (2): 869–879. arXiv:0806.2878. Bibcode:2008MNRAS.389..869E. doi:10.1111/j.1365-2966.2008.13596.x. eISSN 1365-2966. ISSN 0035-8711.
Quelle: https://en.wikipedia.org/wiki/HD_86267