Xi Aurigae Star in the constellation Auriga
Xi Aurigae
Location of ξ Aurigae (circled in red)
Observation dataEpoch J2000.0 Equinox J2000.0 (ICRS )
Constellation Auriga [ 1]
Right ascension 05h 54m 50.76694s [ 2]
Declination +55° 42′ 25.0802″ [ 2]
Apparent magnitude (V)+5.00[ 3]
Characteristics
Evolutionary stage main sequence [ 4]
Spectral type A2 Va[ 5]
U−B color index
+0.12[ 3]
B−V color index
+0.05[ 3]
Astrometry Radial velocity (Rv )± 2.4[ 6] km/s Proper motion (μ) RA: −7.049 mas /yr [ 2] Dec.: +12.959 mas /yr [ 2] Parallax (π)13.3702± 0.1670 mas [ 2] Distance 244 ± 3 ly pc ) Absolute magnitude (MV )+0.64[ 1] Details Mass 2.26[ 7] M ☉ Radius 2.86[ 7] R ☉ Luminosity 47.3[ 7] L ☉ Surface gravity (log g )3.88[ 7] cgs Temperature 8,954[ 7] K Metallicity [Fe/H] ± 0.04[ 1] dex Rotational velocity (v sin i )62[ 8] km/s Age 174[ 8] Myr Other designations ξ Ari , 30 Aurigae , BD +55°1027FK5 1157GC 7404HD 39283HIP 27949HR 2029SAO 25450PPM 30117[ 9] Database references SIMBAD data
Xi Aurigae is a single,[ 10] star in the northern constellation of Auriga . Its name is a Bayer designation that is Latinized from ξ Aurigae, and abbreviated Xi Aur or ξ Ari. This star was once considered part of the constellation of Camelopardalis and held the Flamsteed designation 32 Camelopardalis .[ 11] naked eye with an apparent visual magnitude of +5.0.[ 3] parallax shift of this star is mas [ 2] 244 light-years (75 parsecs ) with a 3 light-year margin of error . At that distance, the visual magnitude of the star is diminished by an extinction of 0.108 due to interstellar dust .[ 12] radial velocity of −13 km/s.[ 6]
This is an A-type main sequence star with a stellar classification of A2 Va.[ 5] Lambda Boötis star , Murphy et al. (2015) don't consider it to be a member of this population.[ 5] [ 8] mass of the Sun and about 2.9 times the Sun's radius .[ 7] million years old[ 8] projected rotational velocity of km/s[ 7] Sun's luminosity from its photosphere at an effective temperature of around K [ 7]
References
1 2 3 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 . 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 . 1 2 3 4 Johnson, H. L.; et al. (1966), "UBVRIJKL photometry of the bright stars", Communications of the Lunar and Planetary Laboratory , 4 (99): 99, Bibcode :1966CoLPL...4...99J . ↑ Zorec, J.; Royer, F. (2012). "Rotational velocities of A-type stars. IV. Evolution of rotational velocities". Astronomy and Astrophysics . 537 : A120. arXiv :1201.2052 Bibcode :2012A& A...537A.120Z . doi :10.1051/0004-6361/201117691 . 1 2 3 Murphy, Simon J.; et al. (October 2015), "An Evaluation of the Membership Probability of 212 λ Boo Stars. I. A Catalogue", Publications of the Astronomical Society of Australia , 32 : 43, arXiv :1508.03633 Bibcode :2015PASA...32...36M , doi :10.1017/pasa.2015.34 , S2CID 59405545 , e036. 1 2 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. 1 2 3 4 5 6 7 8 Stassun, Keivan G.; et al. (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 1 2 3 4 David, Trevor J.; Hillenbrand, Lynne A. (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): 146, arXiv :1501.03154 Bibcode :2015ApJ...804..146D , doi :10.1088/0004-637X/804/2/146 , S2CID 33401607 . ↑ "ksi Aur" . SIMBAD Centre de données astronomiques de Strasbourg . Retrieved 2017-09-28 .↑ 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 . ↑ Wagman, M. (August 1987), "Flamsteed's Missing Stars", Journal for the History of Astronomy , 18 (3): 213, Bibcode :1987JHA....18..209W , doi :10.1177/002182868701800305 , S2CID 118445625 . ↑ Murphy, Simon J.; Paunzen, Ernst (April 2017), "Gaia's view of the λ Boo star puzzle", Monthly Notices of the Royal Astronomical Society , 466 (1): 546– 555, arXiv :1612.01528 Bibcode :2017MNRAS.466..546M , doi :10.1093/mnras/stw3141 S2CID 119328659 .
