Star system in the constellation Andromeda
This article is about b Andromedae; it is not to be confused with
β Andromedae .
60 Andromedae is astar system in the northernconstellation ofAndromeda , located to the east-northeast ofGamma Andromedae .60 Andromedae is theFlamsteed designation (abbreviated60 And ), though the star also bears theBayer designation b Andromedae .[ 11] It is bright enough to be seen by thenaked eye on a dark night, having anapparent visual magnitude of 4.82.[ 3] Based uponparallax measurements, it is located at a distance of approximately 620light-years (190parsecs ) from Earth.[ 2] The system is drifting closer with a heliocentricradial velocity of –46 km/s.[ 5]
This system is known to have three components. The primary is an aginggiant star with astellar classification ofK3.5 III Ba0.4 , meaning that an overabundance of singly-ionized barium (Ba+ ion) is observed in the spectrum of the star, making it abarium star . This star is about 2[ 10] billion years old with double the mass of the Sun.[ 8] It is radiating 685[ 1] times the luminosity of the Sun from its enlargedphotosphere at aneffective temperature of 4,054 K.[ 9] The secondary component is likely adegenerate white dwarf with anorbital period of 748.2 days and aneccentricity of 0.34. There is a third component at anangular separation of 0.22 arcseconds .[ 4]
^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 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 d Argue, A. N. (1966), "UBV photometry of 550 F, G and K type stars",Monthly Notices of the Royal Astronomical Society ,133 (4):475– 493,Bibcode :1966MNRAS.133..475A ,doi :10.1093/mnras/133.4.475 . ^a b 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 . ^a b Wilson, Ralph Elmer (1953), "General Catalogue of Stellar Radial Velocities",Carnegie Institute Washington D.C. Publication , Washington:Carnegie Institution of Washington ,Bibcode :1953GCRV..C......0W . ^ van Leeuwen, F. (November 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 . ^ Ren, Shulin; Fu, Yanning (March 2013), "Hipparcos Photocentric Orbits of 72 Single-lined Spectroscopic Binaries",The Astronomical Journal ,145 (3): 7,Bibcode :2013AJ....145...81R ,doi :10.1088/0004-6256/145/3/81 ,S2CID 120199240 , 81. ^a b c Pourbaix, D.; Boffin, H. M. J. (February 2003), "Reprocessing the Hipparcos Intermediate Astrometric Data of spectroscopic binaries. II. Systems with a giant component",Astronomy and Astrophysics ,398 (3):1163– 1177,arXiv :astro-ph/0211483 ,Bibcode :2003A&A...398.1163P ,doi :10.1051/0004-6361:20021736 ,S2CID 12361870 . ^a b c d Koleva, M.; Vazdekis, A. (February 2012), "Stellar population models in the UV. I. Characterisation of the New Generation Stellar Library",Astronomy & Astrophysics ,538 : A143,arXiv :1111.5449 ,Bibcode :2012A&A...538A.143K ,doi :10.1051/0004-6361/201118065 ,S2CID 53999614 . ^a b Luck, R. Earle (2015), "Abundances in the Local Region. I. G and K Giants",Astronomical Journal ,150 (3), 88,arXiv :1507.01466 ,Bibcode :2015AJ....150...88L ,doi :10.1088/0004-6256/150/3/88 ,S2CID 118505114 . ^a b Tirion; Rappaport; Lovi (1987), Willmann-Bell, Inc. (ed.),Uranometria 2000.0 - Volume II - The Southern Hemisphere to +6° , Richmond, Virginia, USA,ISBN 0-943396-15-8 . ^ "60 And" .SIMBAD .Centre de données astronomiques de Strasbourg . Retrieved2025-03-26 ."* 60 And" .SIMBAD .Centre de données astronomiques de Strasbourg .