Star in the constellation Taurus
Nu Tauri Location of ν Tauri (circled)
Observation dataEpoch J2000 Equinox J2000 Constellation Taurus Right ascension 04h 03m 09.37966s [ 1] Declination +05° 59′ 21.4792″[ 1] Apparent magnitude (V)3.91[ 2] Characteristics Evolutionary stage main sequence[ 3] Spectral type A0.5Va[ 4] U−Bcolor index +0.06[ 5] B−Vcolor index +0.03[ 5] Astrometry Radial velocity (Rv ) −5.7± 0.9[ 6] km/s Proper motion (μ)RA: +4.72[ 1] mas /yr Dec.: −3.78[ 1] mas /yr Parallax (π)27.89± 0.19 mas [ 1] Distance 116.9 ± 0.8 ly (35.9 ± 0.2 pc ) Absolute magnitude (MV )1.14[ 2] Details Mass 2.25± 0.01[ 3] M ☉ Radius 2.87+0.16 −0.31 [ 7] R ☉ Luminosity 28.1± 0.4[ 7] L ☉ Surface gravity (log g )4.02[ 8] cgs Temperature 7,836+464 −203 [ 7] K Metallicity [Fe/H] −0.19± 0.08[ 9] dex Rotational velocity (v sin i )83[ 3] km/s Age 206[ 8] Myr Other designations ν Ser ,38 Tauri ,BD +05°581 ,FK5 151 ,GC 4862 ,HD 25490 ,HIP 18907 ,HR 1251 ,SAO 111579 ,WDS J04032+0559A ,GSC 00079-01585[ 10] Database references SIMBAD data
ν Tauri ,Latinized asNu Tauri , is a single[ 11] star in thezodiac constellation ofTaurus . It is a white-hued star and is visible to the naked eye with anapparent visual magnitude of +3.91.[ 2] This object is located 117 light years from the Sun based onparallax ,[ 1] but is drifting closer with aradial velocity of −6 km/s.[ 6] It is predicted to come to within roughly 18.4 ly of the Sun in around five million years.[ 12]
This object is anA-type main-sequence star with astellar classification of A0.5Va.[ 4] It is 206[ 8] million years old and is rotating with aprojected rotational velocity of 83 km/s.[ 3] The star has 2.25[ 3] times themass of the Sun and 2.87[ 7] times theSun's radius . It is radiating 28 times theluminosity of the Sun from itsphotosphere at aneffective temperature of 7,836 K.[ 7]
Nu Tauri has a magnitude 9.21visual companion at anangular separation 15.9″ .[ 13]
^a b c d e f Van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction".Astronomy and Astrophysics .474 (2):653– 664.arXiv :0708.1752 .Bibcode :2007A&A...474..653V .doi :10.1051/0004-6361:20078357 .S2CID 18759600 . Vizier catalog entry ^a b c 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 . Vizier catalog entry ^a b c d e Zorec, J.; Royer, F. (2012). "Rotational velocities of A-type stars".Astronomy & Astrophysics .537 : A120.arXiv :1201.2052 .Bibcode :2012A&A...537A.120Z .doi :10.1051/0004-6361/201117691 .S2CID 55586789 . Vizier catalog entry ^a b Gray, R. O.; et al. (2006). "Contributions to the Nearby Stars (NStars) Project: Spectroscopy of Stars Earlier than M0 within 40 pc--The Southern Sample".The Astronomical Journal .132 (1):161– 170.arXiv :astro-ph/0603770 .Bibcode :2006AJ....132..161G .doi :10.1086/504637 .S2CID 119476992 . ^a b Mallama, A. (2014). "Sloan Magnitudes for the Brightest Stars".The Journal of the American Association of Variable Star Observers .42 (2): 443.Bibcode :2014JAVSO..42..443M . Vizier catalog entry ^a b Wilson, R. E. (1953). "General Catalogue of Stellar Radial Velocities".Carnegie Institute Washington D.C. Publication .Carnegie Institution for Science .Bibcode :1953GCRV..C......0W .LCCN 54001336 . ^a b c d e 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 atVizieR .^a b c 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 . Vizier catalog entry ^ Gáspár, András; et al. (2016)."The Correlation between Metallicity and Debris Disk Mass" .The Astrophysical Journal .826 (2): 171.arXiv :1604.07403 .Bibcode :2016ApJ...826..171G .doi :10.3847/0004-637x/826/2/171 .S2CID 119241004 . ^ "nu Tau" .SIMBAD .Centre de données astronomiques de Strasbourg . Retrieved2019-10-04 .^ Eggleton, P. P.; Tokovinin, A. A. (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 .S2CID 14878976 . ^ Bailer-Jones, C. A. L. (March 2015). "Close encounters of the stellar kind".Astronomy & Astrophysics .575 : 13.arXiv :1412.3648 .Bibcode :2015A&A...575A..35B .doi :10.1051/0004-6361/201425221 .S2CID 59039482 . A35. ^ Mason, Brian D.; et al. (2001)."The 2001 US Naval Observatory Double Star CD-ROM. I. The Washington Double Star Catalog" .The Astronomical Journal .122 (6): 3466.Bibcode :2001AJ....122.3466M .doi :10.1086/323920 . Vizier catalog entry