14 Arietis

Star in the constellation Aries J2000 02 09 25.3363 +25 56 23.612 4.98 Aries F2 III +0.33 +0.15 −1.21 +70.46 −34.99 11.30 1.07 0.26 4 32 6,761 3.2 139.6 BD+25°355, FK5 1089,HD 13174, HIP 10053, HR 623, SAO 75171. 14+Ari 14 Arietis (abbreviated 14 Ari) is a star in the constellation of Aries. 14 Arietis is the Flamsteed designation. It has an apparent visual magnitude of 4.98, which means it is visible to the naked eye. Based upon a measured annual parallax shift of 11.30 mas, is it located at a distance of approximately 290 ly pc off on, give or take a 30 light-year margin of error. This is an astrometric binary system. The primary has a stellar classification of F2 III, suggesting that it is a giant star. Despite being an evolved star with four times the radius of the Sun, it is spinning rapidly with a projected rotational velocity of 139.6 km/s. This is causing a pronounced equatorial bulge, with the radius of the star along the equator being 24% greater than the radius at the poles. The star shines at 32 times the luminosity of the Sun, with this energy being radiated from its outer atmosphere at an effective temperature of 6,761 K. This heat gives it the yellow-white hued glow of an F-type star. References F. van Leeuwen November 2007 Validation of the new Hipparcos reduction Astronomy and Astrophysics 474 2 653–664 2007A&A...474..653V 10.1051/0004-6361:20078357 0708.1752 18759600 . 1 Massarotti Alessandro Latham David W. Stefanik Robert P. Fogel Jeffrey Rotational and Radial Velocities for a Sample of 761 HIPPARCOS Giants and the Role of Binarity The Astronomical Journal 135 1 209–231 10.1088/0004-6256/135/1/209 2008AJ....135..209M . January 2008 free Buscombe W. Standard stars for spectral classification Mount Stromlo Observatory Mimeogram 3 1959 1 1959MtSOM...3....1B . Danziger I. J. Dickens R. J. Spectrophotometry of New Short-Period Variable Stars Astrophysical Journal 149 55 10.1086/149231 1967ApJ...149...55D . July 1967 free 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 10.1111/j.1365-2966.2008.13596.x 2008MNRAS.389..869E 0806.2878 . September 2008 free 14878976 14 Ari 2012-07-18 Holmberg J. Nordström B. Andersen J. The Geneva-Copenhagen survey of the solar neighbourhood. III. Improved distances, ages, and kinematics 501 3 July 2009 941–947 10.1051/0004-6361/200811191 Astronomy and Astrophysics 2009A&A...501..941H 0811.3982 118577511 . van Belle Gerard T. Interferometric observations of rapidly rotating stars The Astronomy and Astrophysics Review 20 1 51 10.1007/s00159-012-0051-2 2012A&ARv..20...51V 1204.2572 . March 2012 119273474 The Colour of Stars December 21, 2004 Australia Telescope, Outreach and Education Commonwealth Scientific and Industrial Research Organisation http://outreach.atnf.csiro.au/education/senior/astrophysics/photometry_colour.html 2012-01-16 dead https://web.archive.org/web/20120222183238/http://outreach.atnf.csiro.au/education/senior/astrophysics/photometry_colour.html February 22, 2012 External links Aladin previewer Aladin sky atlas HR 623 Category:F2III stars Arietis, 14 013174 010053 0623 Category:Aries (constellation) Category:Astrometric binaries Category:Durchmusterung objects