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Star in the constellation Andromeda
49 Andromedae (abbreviated 49 And ) is a star in the constellation Andromeda . 49 Andromedae is the Flamsteed designation though it also bears the Bayer designation A Andromedae . It is visible to the naked eye under good viewing conditions with an apparent visual magnitude of 5.269.[ 2] parallax shift of mas [ 1] light-years . It is moving closer to the Sun with a heliocentric radial velocity of −11.5 km/s.[ 2]
With an estimated age of Gyr [ 2] red-clump [ 6] giant star with a stellar classification of K0 III,[ 3] helium fusion at its core . The spectrum displays "slightly strong" absorption lines of cyanogen (CN) .[ 3] [ 2] mass of the Sun and has expanded to 11[ 5] Sun's radius . The star is radiating 71[ 2] Sun's luminosity from its enlarged photosphere at an effective temperature of K [ 2]
^ a b c d e f 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 ^ a b c d e f g h i j k l m 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 c Schmitt, John L. (January 1971), "Stars with Strong Cyanogen Absorption", Astrophysical Journal , 163 : 75, Bibcode :1971ApJ...163...75S , doi :10.1086/150747 ^ 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 Massarotti, Alessandro; et al. (January 2008), "Rotational and Radial Velocities for a Sample of 761 HIPPARCOS Giants and the Role of Binarity", The Astronomical Journal , 135 (1): 209–231, Bibcode :2008AJ....135..209M , doi :10.1088/0004-6256/135/1/209 S2CID 121883397 . ^ a b c Tautvaišienė, G.; et al. (March 2013), "Red clump stars of the Milky Way - laboratories of extra-mixing", Monthly Notices of the Royal Astronomical Society , 430 (1): 621−627, arXiv :1304.4393 Bibcode :2013MNRAS.430..621T , doi :10.1093/mnras/sts663 S2CID 119211439 . ^ De Medeiros, J. R.; et al. (November 2000), "Rotation and lithium in single giant stars", Astronomy and Astrophysics , 363 : 239–243, arXiv :astro-ph/0010273 Bibcode :2000A&A...363..239D . ^ Tirion, W.; et al. (1987), Willmann-Bell, Inc. (ed.), Uranometria 2000.0 - Volume II - The Southern Hemisphere to +6° , Richmond, Virginia, USA, ISBN 0-943396-15-8 ^ "49 And" . SIMBAD Centre de données astronomiques de Strasbourg . Retrieved October 1, 2018 .
