14 Boötis

Possible binary star system in the constellation Boötes J2000 Boötes 14 14 05.17971 +12 57 33.9997 5.53 F8 V 0.55 −39.6 0.1 −253.97 −54.47 29.7478 0.1000 2.92 14 Boötis A 1.46 2.12 0.06 0.03 5.879 0.024 0.026 3.85 0.10 0.07 0.10 6169 53 81 commas 5.6 26 2.60 14 Boo +13°2764 124570 69536 5323 100925 J14141+1258AB 14163 14+Boo 14 Boötis is a possible binary star system located 110 light years away from the Sun in the northern constellation of Boötes. It is visible to the naked eye as a dim, yellow-white hued star with a combined apparent visual magnitude of 5.53. This system is moving closer to the Earth with a heliocentric radial velocity of −40 km/s. It has a relatively high proper motion, traversing the celestial sphere at the rate of 0.260 arc seconds per annum. The component of this system remain unresolved as of 2002; Eggleton and Tokovinin (2008) listed an angular separation of 0.2 arcsecond. The visible component is an F-type main-sequence star with a stellar classification of F8 V There are enhanced barium lines in the star's spectrum, but these are likely caused by regions of photospheric activity rather than being a barium star. It is 2.6 billion years old and is spinning with a projected rotational velocity of 5.6 km/s, giving it a rotation period of 26 days. 14 Boötis has 1.46 times the mass of the Sun and 2.1 times the Sun's radius. It is radiating 5.9 times the luminosity of the Sun from its photosphere at an effective temperature of 6,169 K. The metallicity is near solar, based on the abundance of iron in the stellar atmosphere. References 14 Boo 2018-01-26 1226796526941689856 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 . 1 Casagrande L. Schönrich R. Asplund M. Cassisi S. Ramírez I. Meléndez J. Bensby T. Feltzing S. New constraints on the chemical evolution of the solar neighbourhood and Galactic disc(s). Improved astrophysical parameters for the Geneva-Copenhagen Survey Astronomy and Astrophysics 530 A138 June 2011 10.1051/0004-6361/201016276 2011A&A...530A.138C 1103.4651 56118016. 1 Takeda Yoichi Sato Bun'ei Kambe Eiji Masuda Seiji Izumiura Hideyuki Watanabe Etsuji Ohkubo Michiko Yanagisawa Kenshi Yasaka Yoshiro High-Dispersion Spectra Collection of Nearby F--K Stars at Okayama Astrophysical Observatory: A Basis for Spectroscopic Abundance Standards Publications of the Astronomical Society of Japan 57 1 13–25 February 2005 2005PASJ...57...13T 10.1093/pasj/57.1.13 free . Takeda Yoichi Fundamental Parameters and Elemental Abundances of 160 F-G-K Stars Based on OAO Spectrum Database Publications of the Astronomical Society of Japan 59 2 335–356 April 2007 2007PASJ...59..335T 10.1093/pasj/59.2.335 free . Abt Helmut A. MK Classifications of Spectroscopic Binaries The Astrophysical Journal Supplement 180 1 117–18 2009 10.1088/0067-0049/180/1/117 2009ApJS..180..117A 122811461 . Pizzolato N. Maggio A. Sciortino S. Evolution of X-ray activity of 1-3 Msun late-type stars in early post-main-sequence phases Astronomy and Astrophysics 361 614–628 September 2000 2000A&A...361..614P . Transition from spot to faculae domination. An alternate explanation for the dearth of intermediate Kepler rotation periods 1 Reinhold Timo Bell Keaton J. Kuszlewicz James Hekker Saskia Shapiro Alexander I. Astronomy & Astrophysics 621 A21 14 January 2019 10.1051/0004-6361/201833754 2019A&A...621A..21R 1810.11250 119505516 . Roberts Lewis C. Jr. Astrometric and photometric measurements of binary stars with adaptive optics: observations from 2002 Monthly Notices of the Royal Astronomical Society 413 2 1200–1205 May 2011 10.1111/j.1365-2966.2011.18205.x free 2011MNRAS.413.1200R 1012.3383 118398949 . Spectroscopic analysis of barium dwarfs Pakhomov Yu. V. Proceedings of the 2018 acad. A.A. Boyarchuk Memorial Conference D. V. Bisikalo D. S. Wiebe Moscow Yanus-K 23–28 May 2018 10.26087/INASAN.2018.1.1.004 2018abmc.conf...23P ru cs2. Lépine Sébastien Shara Michael M. A Catalog of Northern Stars with Annual Proper Motions Larger than 0.15" (LSPM-NORTH Catalog) The Astronomical Journal 129 3 1483–1522 March 2005 10.1086/427854 2005AJ....129.1483L astro-ph/0412070 2603568. External links HR 5323 Image 14 Boötis Category:Spectroscopic binaries Category:Boötes BD+13 2764 Bootis, 14 124570 069536 5323 Category:F8V stars