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Star in the constellation Andromeda
65 Andromedae , abbreviated 65 And , is a single,[ 10] star in the northern constellation of Andromeda . With an apparent magnitude of 4.73,[ 2] parallax shift of mas [ 1] light years . At that distance, its brightness is relatively lowered primarily by the inverse square law but also by an extinction of 0.16 magnitude due to interstellar dust .[ 11] radial velocity of −5 km/s.[ 5]
This is a mildly iron-deficient[ 12] giant star with a stellar classification of K4.5 III,[ 3] [ 7] evolved star that has exhausted the hydrogen at its core and expanded its radius. The measured angular diameter of this star, after correction for limb darkening , is ± 0.06 mas[ 13] radius of the Sun .[ 8] [ 7] mass of the Sun and is radiating 372[ 7] Sun's luminosity from its enlarged photosphere at an effective temperature of 3,927 K.[ 7]
^ 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 Soubiran, Caroline; et al. (2016), "The PASTEL catalogue: 2016 version", Astronomy & Astrophysics , 591 : A118, arXiv :1605.07384 Bibcode :2016A&A...591A.118S , doi :10.1051/0004-6361/201628497 , S2CID 119258214 . ^ a b Keenan, P.; McNeil, R. (October 1989), "The Perkins catalog of revised MK types for the cooler stars", Astrophysical Journal Supplement Series , 71 : 245–266, Bibcode :1989ApJS...71..245K , doi :10.1086/191373 . ^ 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 de Bruijne, J. H. J.; Eilers, A.-C. (October 2012), "Radial velocities for the HIPPARCOS-Gaia Hundred-Thousand-Proper-Motion project", Astronomy & Astrophysics , 546 : 14, arXiv :1208.3048 Bibcode :2012A&A...546A..61D , doi :10.1051/0004-6361/201219219 , S2CID 59451347 , A61. ^ Luck, R. E.; Heiter, U. (June 2007), "Giants in the Local Region", Astronomy & Astrophysics , 133 (6): 2464–2486, Bibcode :2007AJ....133.2464L , doi :10.1086/513194 ^ a b c d e f g h 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 Lang, Kenneth R. (2006), Astrophysical formulae Birkhäuser , ISBN 3-540-29692-1 * ) is given by:
2
⋅
R
∗
=
(
134
⋅
3.28
⋅
10
−
3
)
AU
0.0046491
AU
/
R
⨀
≈
94.5
⋅
R
⨀
{\displaystyle {\begin{aligned}2\cdot R_{*}&={\frac {(134\cdot 3.28\cdot 10^{-3})\ {\text{AU}}}{0.0046491\ {\text{AU}}/R_{\bigodot }}}\\&\approx 94.5\cdot R_{\bigodot }\end{aligned}}}
^ "65 And" . SIMBAD Centre de données astronomiques de Strasbourg . Retrieved October 6, 2018 .^ 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 . ^ Famaey, B.; et al. (January 2005), "Local kinematics of K and M giants from CORAVEL/Hipparcos/Tycho-2 data. Revisiting the concept of superclusters", Astronomy and Astrophysics , 430 (1): 165–186, arXiv :astro-ph/0409579 Bibcode :2005A&A...430..165F , doi :10.1051/0004-6361:20041272 , S2CID 17804304 . ^ Krempec-Krygier, J.; et al. (October 1991), "The chemical composition of two K4-type giants, HD 14872 and HD 209960", Astronomy and Astrophysics , 250 (2): 451−458, Bibcode :1991A&A...250..451K . ^ Richichi, A.; et al. (February 2005), "CHARM2: An updated Catalog of High Angular Resolution Measurements", Astronomy and Astrophysics , 431 (2): 773–777, Bibcode :2005A&A...431..773R , doi :10.1051/0004-6361:20042039
