Star in the constellation Taurus
18 Tauri is a single[ 9] star in the zodiac constellation of Taurus , located 444 light years away from the Sun. It is visible to the naked eye as a faint, blue-white hued star with an apparent visual magnitude of 5.66.[ 2] radial velocity of +4.8.[ 5] Pleiades [ 10] open cluster , which is positioned near the ecliptic and thus is subject to lunar occultations .[ 11]
This is a B-type main-sequence star with a stellar classification of B8 V,[ 4] main sequence lifetime.[ 3] infrared excess , suggesting the presence of an orbiting debris disk with a black body temperature of 75 K at a separation of AU [ 6] [ 3] mass of the Sun and 2.89[ 6] Sun's radius . It is radiating 160[ 3] Sun's luminosity from its photosphere at an effective temperature of 13,748 K.[ 7] projected rotational velocity of 212 km/s.[ 3]
References
^ 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 at VizieR .^ 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 . ^ a b c d e f g h Zorec, J.; Royer, F. (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 . ^ a b Morgan, W. W.; Keenan, P. C. (1973), "Spectral Classification", Annual Review of Astronomy and Astrophysics , 11 : 29, Bibcode :1973ARA&A..11...29M , doi :10.1146/annurev.aa.11.090173.000333 . ^ a b Gontcharov, G. A. (November 2006), "Pulkovo Compilation of Radial Velocities for 35495 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 . ^ a b c Cotten, Tara H.; Song, Inseok (July 2016), "A Comprehensive Census of Nearby Infrared Excess Stars", The Astrophysical Journal Supplement Series , 225 (1): 24, arXiv :1606.01134 Bibcode :2016ApJS..225...15C , doi :10.3847/0067-0049/225/1/15 S2CID 118438871 , 15. ^ 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 . ^ "18 Tau" . SIMBAD Centre de données astronomiques de Strasbourg . Retrieved 2019-03-20 .^ 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– 879, arXiv :0806.2878 Bibcode :2008MNRAS.389..869E , doi :10.1111/j.1365-2966.2008.13596.x S2CID 14878976 ^ Eggen, Olin J. (October 1998), "The Pleiades and alpha Persei Clusters", The Astronomical Journal , 116 (4): 1810– 1815, Bibcode :1998AJ....116.1810E , doi :10.1086/300533 ^ Meyer, C.; et al. (1995), "Observations of lunar occultations at Observatoire de la Cote d'Azur", Astronomy and Astrophysics Supplement , 110 : 107, Bibcode :1995A&AS..110..107M .
