1 Aurigae

Star in the constellation Perseus 1 Aurigae Perseus constellation map.svg center 280 right Red circle.svg 10 1 Aurigae 93 720 Location of 1 Aurigae (circled) J2000 Perseus 04 49 54.639460708.1752 2007A&A...474..653V 10.1051/0004-6361:20078357 free Validation of the new Hipparcos reduction Astronomy and Astrophysics 474 2 653–664 2007 Van Leeuwen F. 18759600 Vizier catalog entry +37 29 17.7936 4.8922453 K3.5IIIBa0.2:1995yCat.5050....0H VizieR Online Data Catalog: Bright Star Catalogue, 5th Revised Ed. (Hoffleit+, 1991) VizieR On-line Data Catalog: V/50. Originally Published in: 1964BS....C......0H 5050 Hoffleit D. Warren W. H. 1995 +1.452006yCat.2168....0M VizieR Online Data Catalog: Homogeneous Means in the UBV System (Mermilliod 1991) VizieR On-line Data Catalog: II/168. Originally Published in: Institut d'Astronomie 2168 Mermilliod J. C. 2006 Vizier catalog entry +1.71 −24.6510.1051/0004-6361:20041272 free 2005A&A...430..165F astro-ph/0409579 Local kinematics of K and M giants from CORAVEL/Hipparcos/Tycho-2 data Astronomy & Astrophysics 430 165–186 2005 Famaey B. Jorissen A. Luri X. Mayor M. Udry S. Dejonghe H. Turon C. 17804304 −36.89 +38.85 6.48 0.44 −1.04 1.49Abundances in the Local Region. I. G and K Giants Luck R. Earle Astronomical Journal . 150 3 88 2015 1507.01466 2015AJ....150...88L 10.1088/0004-6256/150/3/88 118505114 44 51 van Belle G. T. Creech-Eakman M. J. Hart A. Supergiant temperatures and linear radii from near-infrared interferometry Monthly Notices of the Royal Astronomical Society 2009 394 4 1925 2009MNRAS.394.1925V 0811.4239 10.1111/j.1365-2966.2008.14146.x free 118372600 4,1022014AJ....147..137L 10.1088/0004-6256/147/6/137 Parameters and Abundances in Luminous Stars The Astronomical Journal 147 6 137 2014 Earle Luck R. free 561 1.61999A&AS..139..433D 10.1051/aas:1999401 A catalog of rotational and radial velocities for evolved stars Astronomy and Astrophysics Supplement Series 139 3 433 1999 De Medeiros J. R. Mayor M. astro-ph/0608248 Vizier catalog entry 1.12 −0.30 3.93 1 Aur +37°969 1133 30504 22453 1533 57447 5868 1 Aur 2019-03-30 1+Aurigae 1 Aurigae is the original name for a star now in the constellation Perseus. It was the first entry in John Flamsteed's catalogue of stars in Auriga. When Eugène Joseph Delporte drew up simplified boundaries for the constellations on behalf of the International Astronomical Union in 1930, 1 Aurigae ended up over the border in Perseus. To avoid confusion, the star may instead be referred to by its Harvard Revised catalogue number, HR 1533. Based upon its parallax measurement of 6.48 mas, this star is located approximately 520 light years from Earth. It is visible to the naked eye as a faint, orange-hued star with an apparent visual magnitude of 4.89. 1 Aurigae is moving closer to the Earth with a heliocentric radial velocity of −25 km/s. This is a possible binary star system, based upon the status of the visible component as a mild barium star. The primary is an aging giant star with a stellar classification of K3.5 III Ba0.2:. It is 3.9 billion years old with 1.49 times the mass of the Sun and around 44 times the Sun's radius. This star is radiating 561 times the luminosity of the Sun from its enlarged photosphere at an effective temperature of 4,102 K. The suspected companion star should be a white dwarf that previously transferred s-process elements to the visible member. References Eggleton P. P. Tokovinin A. A. A catalogue of multiplicity among bright stellar systems Monthly Notices of the Royal Astronomical Society 389 2 869–879 September 2008 10.1111/j.1365-2966.2008.13596.x free 2008MNRAS.389..869E 0806.2878 14878976 Hertzsprung-Russell diagram and mass distribution of barium stars 1 Escorza A. Boffin H. M. J. Jorissen A. Van Eck S. Siess L. Van Winckel H. Karinkuzhi D. Shetye S. Pourbaix D. Astronomy & Astrophysics 1710.02029 608 A100 13 December 2017 10.1051/0004-6361/201731832 free 2017A&A...608A.100E 119428276 Category:K-type giants Category:Barium stars Category:Auriga Category:Perseus (constellation) Category:Durchmusterung objects Aurigae, 01 030504 022453 1533