HD 26764

HD 26764 (HR 1314) is a solitary star located in the constellation Camelopardalis. With an apparent magnitude of 5.187, its visible to the unaided eye under ideal conditions. This star is currently located 293 light years away, but is drifting closer with a radial velocity of 3 km/s.

HD 26764
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Camelopardalis
Right ascension 04h 16m 43.09s[1]
Declination +53° 36′ 42.50″[1]
Apparent magnitude (V) 5.187[2]
Characteristics
Spectral type A2Vn[3]
B−V color index 0.052±0.004[4]
Astrometry
Radial velocity (Rv)−3.0±3.1[5] km/s
Proper motion (μ) RA: −16.773[1] mas/yr
Dec.: −1.770[1] mas/yr
Parallax (π)11.1278 ± 0.2234[1] mas
Distance293 ± 6 ly
(90 ± 2 pc)
Absolute magnitude (MV)0.21[4]
Details
Mass2.280+0.444
−0.217[6] M☉
Radius3.167+0.109
−0.124[6] R☉
Luminosity60.26+3.77
−3.52[6] L☉
Temperature9825±334[7] K
Metallicity [Fe/H]−0.06[8] dex
Rotational velocity (v sin i)249 km/s
Age162[7] Myr
Other designations
BD+53 750, HIP 19949, HR 1314, SAO 24512
Database references
SIMBADdata

Properties

HD 26764 is an A-type star with 2.28 times the mass of the Sun, but has an unusual size for its age, with 3.167 times the Sun’s radius. It radiates at 60.26 solar luminosities, and has an effective temperature of 9,825 K, which gives it a white hue. HD 26764 is a rapid rotator, with a projected rotational velocity of 249 km/s.

References
  1. 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. HOG, E. (March 2, 2000), "The Tycho-2 catalogue of the 2.5 million brightest stars", Astronomy and Astrophysics, 355: L27-30, Bibcode:2000A&A...355L..27H
  3. Cowley, A. (April 1969), "A study of the bright A stars. I. A catalogue of spectral classifications.", Astronomical Journal, 74: 375–406, Bibcode:1969AJ.....74..375C, doi:10.1086/110819
  4. Anderson, E. (May 2012), "XHIP: An extended hipparcos compilation", Astronomy Letters, 38 (5): 331–346, arXiv:1108.4971, Bibcode:2012AstL...38..331A, doi:10.1134/S1063773712050015, S2CID 119257644
  5. 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, S2CID 119231169
  6. Stassun, Kevian G. (October 2019), "The Revised TESS Input Catalog and Candidate Target List", The Astronomical Journal, 158 (4): 21, arXiv:1905.10694, Bibcode:2019AJ....158..138S, doi:10.3847/1538-3881/ab3467, S2CID 166227927
  7. David, Trevor J. (May 2015), "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): 38, arXiv:1501.03154, Bibcode:2015ApJ...804..146D, doi:10.1088/0004-637X/804/2/146, S2CID 33401607
  8. Anders, F. (August 2019), "Photo-astrometric distances, extinctions, and astrophysical parameters for Gaia DR2 stars brighter than G = 18", Astronomy & Astrophysics, 628: 24, arXiv:1904.11302, Bibcode:2019A&A...628A..94A, doi:10.1051/0004-6361/201935765, S2CID 131780028
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.