Star in the constellation Andromeda
32 Andromedae , abbreviated 32 And , is a star in the northern constellation of Andromeda . 32 Andromedae is the Flamsteed designation . It is faintly visible to the naked eye with an apparent visual magnitude is 5.30. The distance to 32 And, as estimated from its annual parallax shift of 9.8 mas , is around 331 light years . It is moving closer to the Earth with a heliocentric radial velocity of −5 km/s.
With an age of 420 million years, this is a red giant star with a stellar classification of G8 III, indicating it has consumed the hydrogen at its core and evolved off the main sequence . It has 2.8 times the mass of the Sun and has expanded to 12 times the Sun's radius . The star is radiating 90 times the Sun's luminosity from its enlarged photosphere at an effective temperature of 5,107 K.
References
^ 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 .
^ 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 .
^ Harlan, E. A. (December 1981), "MK classifications for F- and G- type stars. IV.", Astronomical Journal , 86 : 1896–1897, Bibcode :1981AJ.....86.1896H , doi :10.1086/113068 .
^ 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.
^ Reffert, Sabine; et al. (2015), "Precise radial velocities of giant stars. VII. Occurrence rate of giant extrasolar planets as a function of mass and metallicity", Astronomy & Astrophysics , 574 : A116, arXiv :1412.4634 , Bibcode :2015A&A...574A.116R , doi :10.1051/0004-6361/201322360 , S2CID 59334290 .
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 .
"32 And" . SIMBAD Centre de données astronomiques de Strasbourg . Retrieved September 27, 2018.
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