HD 23753 is a single[11] star in the equatorial zodiac constellation of Taurus, and is a member of the Pleiades open cluster.[12] It is dimly visible to the naked eye with an apparent visual magnitude of 5.44.[2] The distance to this star, as determined from its annual parallax shift of 7.7 mas, is about 424 light years. It is moving further from the Earth with a heliocentric radial velocity of +8 km/s.[5] The star is positioned near the ecliptic and so is subject to lunar occultations.[13]

This is a B-type main-sequence star with a stellar classification of B9 Vn,[4] where the 'n' indicates "nebulous" lines due to rapid rotation. It is 125[9] million years old with a projected rotational velocity of 335 km/s,[3] completing a full revolution about its axis every 16.79 hours.[8] HD 23753 has been catalogued as a suspected variable star with the designation NSV 1321,[14] although the amplitude is no more than 0.1 magnitude and it may even be suitable for a photometric standard.[15] Wraight et al. report that STEREO detected very shallow eclipses, with a period of 2.2663 days, during which the brightness falls by 1%.[16]

HD 23753 has 3.21[3] times the mass of the Sun and 3.2[6] times the Sun's radius. It is radiating 150[3] times the Sun's luminosity from its photosphere at an effective temperature of 11,535 K.[3]

References

  1. ^ a b c d e 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 c d 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, S2CID 119257644.
  3. ^ a b c d e f g h i Zorec, J.; Royer, F. (January 2012), "Rotational velocities of A-type stars. IV. Evolution of rotational velocities", Astronomy & Astrophysics, 537: A120, arXiv:1201.2052, Bibcode:2012A&A...537A.120Z, doi:10.1051/0004-6361/201117691, S2CID 55586789.
  4. ^ a b Cowley, A. (November 1972), "Spectral classification of the bright B8 stars", Astronomical Journal, 77: 750–755, Bibcode:1972AJ.....77..750C, doi:10.1086/111348.
  5. ^ a b de Bruijne, J. H. J.; Eilers, A.-C. (October 2012), "Radial velocities for the HIPPARCOS-Gaia Hundred-Thousand-Proper-Motion project", Astronomy & Astrophysics, 546: 14, arXiv:1208.3048, Bibcode:2012A&A...546A..61D, doi:10.1051/0004-6361/201219219, S2CID 59451347, A61.
  6. ^ a b Pasinetti Fracassini, L. E.; et al. (2001), "Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS)", Astronomy & Astrophysics, 367 (2) (3rd ed.): 521–24, arXiv:astro-ph/0012289, Bibcode:2001A&A...367..521P, doi:10.1051/0004-6361:20000451, S2CID 425754.
  7. ^ a b Khalatyan, A.; Anders, F.; Chiappini, C.; Queiroz, A. B. A.; Nepal, S.; Dal Ponte, M.; Jordi, C.; Guiglion, G.; Valentini, M.; Torralba Elipe, G.; Steinmetz, M.; Pantaleoni-González, M.; Malhotra, S.; Jiménez-Arranz, Ó.; Enke, H.; Casamiquela, L.; Ardèvol, J. (2024). "Transferring spectroscopic stellar labels to 217 million Gaia DR3 XP stars with SHBoost". Astronomy and Astrophysics. 691: A98. arXiv:2407.06963. Bibcode:2024A&A...691A..98K. doi:10.1051/0004-6361/202451427.
  8. ^ a b Rebull, L. M.; et al. (November 2016), "Rotation in the Pleiades with K2. I. Data and First Results", The Astronomical Journal, 152 (5): 19, arXiv:1606.00052, Bibcode:2016AJ....152..113R, doi:10.3847/0004-6256/152/5/113, S2CID 67820148, 113.
  9. ^ a b Su, K. Y. L.; et al. (December 2006), "Debris Disk Evolution around A Stars", The Astrophysical Journal, 653 (1): 675–689, arXiv:astro-ph/0608563, Bibcode:2006ApJ...653..675S, doi:10.1086/508649, S2CID 14116473.
  10. ^ "HD 161840". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2018-08-06.
  11. ^ Eggleton, P. P.; Tokovinin, A. A. (2008), "A catalogue of multiplicity among bright stellar systems", Monthly Notices of the Royal Astronomical Society, 389 (2): 869, arXiv:0806.2878, Bibcode:2008MNRAS.389..869E, doi:10.1111/j.1365-2966.2008.13596.x, S2CID 14878976.
  12. ^ White, Richard E.; et al. (February 2001), "Interstellar Matter Near the Pleiades. V. Observations of NA I toward 36 Stars", The Astrophysical Journal Supplement Series, 132 (2): 253–280, Bibcode:2001ApJS..132..253W, doi:10.1086/318950
  13. ^ Eitter, J. J.; Beavers, W. I. (August 1977), "Lunar occultation summary. II", Astrophysical Journal Supplement Series, 34: 493–504, Bibcode:1977ApJS...34..493E, doi:10.1086/190460
  14. ^ Samus', N. N.; et al. (2017), "General catalogue of variable stars: Version GCVS 5.1", Astronomy Reports, 61 (1): 80–88, Bibcode:2017ARep...61...80S, doi:10.1134/S1063772917010085, S2CID 125853869.
  15. ^ Adelman, S. J.; et al. (October 2000), "On the Variability of Late B III-V Stars", Information Bulletin on Variable Stars, 4968: 1, Bibcode:2000IBVS.4968....1A.
  16. ^ Wraight, K. T.; White, Glenn J.; Bewsher, D.; Norton, A. J. (October 2011). "STEREO observations of stars and the search for exoplanets". Monthly Notices of the Royal Astronomical Society. 416 (4): 2477–2493. arXiv:1103.0911. Bibcode:2011MNRAS.416.2477W. doi:10.1111/j.1365-2966.2011.18599.x. S2CID 2133517.
Allikas: http://en.wikipedia.org/wiki/HD_23753
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