Astronomy:62 Andromedae

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Short description: Star in the constellation Andromeda
62 Andromedae
Location of 62 Andromedae (circled)
Observation data
Equinox J2000.0]] (ICRS)
Constellation Andromeda[1]
Right ascension  02h 19m 16.79693s[2]
Declination +47° 22′ 47.9132″[2]
Apparent magnitude (V) 5.32[3]
Characteristics
Evolutionary stage main sequence[4]
Spectral type A0V[5]
B−V color index 0.00425[6]
Astrometry
Radial velocity (Rv)−29.6±2.8[7] km/s
Proper motion (μ) RA: –60.03[8] mas/yr
Dec.: –5.61[8] mas/yr
Parallax (π)11.9531 ± 0.1640[2] mas
Distance273 ± 4 ly
(84 ± 1 pc)
Absolute magnitude (MV)0.93[1]
Details
Mass2.44[3] M☉
Radius2.57[3] R☉
Luminosity50[3] L☉
Surface gravity (log g)4.01[3] cgs
Temperature9,572[3] K
Rotational velocity (v sin i)86[9] km/s
Other designations
c Andromedae[10], 62 And, BD+46°552, FK5 1063, HD 14212, HIP 10819, HR 670, SAO 37948, PPM 44986[11]
Database references
SIMBADdata

62 Andromedae is a single[12] star in the northern constellation Andromeda.[1] 62 Andromedae is the Flamsteed designation, abbreviated 62 And;[11] it also bears the Bayer designation of c Andromedae.[10] It is bright enough to be seen by the naked eye, with an apparent magnitude of 5.31. Based upon parallax measurements made during the Gaia mission, it is at a distance of roughly 273 light-years (84 pc) from Earth.[2] The star is moving closer to the Earth with a heliocentric radial velocity of −30 km/s,[7] and is predicted to come to within 144.6 light-years in 1.6 million years.[1]

This is an A-type main-sequence star with a stellar classification of A0 V.[13] Abt and Morrel (1995) gave it a class of A1 III,[14][1] matching a more evolved giant star. The star has 2.4 times the mass of the Sun, about 2.6 times the Sun's radius,[3] and is spinning with a projected rotational velocity of 86 km/s.[4] It is radiating 50 times the Sun's luminosity from its photosphere at an effective temperature of 9,572 K.[3] 62 And is about 57% of the way through its main sequence lifetime.[4]

References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters 38 (5): 331. doi:10.1134/S1063773712050015. Bibcode: 2012AstL...38..331A  XHIP record for this object at VizieR.
  2. ↑ 2.0 2.1 2.2 2.3 Brown, A. G. A. (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics 616: A1. doi:10.1051/0004-6361/201833051. Bibcode: 2018A&A...616A...1G.  Gaia DR2 record for this source at VizieR.
  3. ↑ 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 Stassun, Keivan G. et al. (2019). "The Revised TESS Input Catalog and Candidate Target List". The Astronomical Journal 158 (4): 138. doi:10.3847/1538-3881/ab3467. Bibcode: 2019AJ....158..138S. 
  4. ↑ 4.0 4.1 4.2 Zorec, J.; Royer, F. (2012), "Rotational velocities of A-type stars. IV. Evolution of rotational velocities", Astronomy & Astrophysics 537: A120, doi:10.1051/0004-6361/201117691, A120, Bibcode: 2012A&A...537A.120Z. 
  5. ↑ van Belle, Gerard T.; von Braun, Kaspar (2009), "Directly Determined Linear Radii and Effective Temperatures of Exoplanet Host Stars", The Astrophysical Journal 694 (2): 1085–1098, doi:10.1088/0004-637X/694/2/1085, Bibcode: 2009ApJ...694.1085V. 
  6. ↑ Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P. et al. (2000), "The Tycho-2 catalogue of the 2.5 million brightest stars", Astronomy & Astrophysics 355: L27–L30, Bibcode: 2000A&A...355L..27H. 
  7. ↑ 7.0 7.1 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, doi:10.1051/0004-6361/201219219, A61, Bibcode: 2012A&A...546A..61D. 
  8. ↑ 8.0 8.1 van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics 474 (2): 653–664. doi:10.1051/0004-6361:20078357. Bibcode: 2007A&A...474..653V. http://www.aanda.org/articles/aa/full/2007/41/aa8357-07/aa8357-07.html. Vizier catalog entry
  9. ↑ Royer, F. et al. (2002), "Rotational velocities of A-type stars in the northern hemisphere. II. Measurement of v sin i", Astronomy & Astrophysics 393 (3): 897–911, doi:10.1051/0004-6361:20020943, Bibcode: 2002A&A...393..897R. 
  10. ↑ 10.0 10.1 Tirion, Wil; Rappaport, Barry (1987), Remaklus, Will, ed., Uranometria 2000.0 - Volume II - The Southern Hemisphere to +6°, Richmond, Virginia, USA, ISBN 0-943396-15-8. 
  11. ↑ 11.0 11.1 "62 And". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=62+And. 
  12. ↑ 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, doi:10.1111/j.1365-2966.2008.13596.x, Bibcode: 2008MNRAS.389..869E. 
  13. ↑ van Belle, Gerard T.; von Braun, Kaspar (2009), "Directly Determined Linear Radii and Effective Temperatures of Exoplanet Host Stars", The Astrophysical Journal 694 (2): 1085–1098, doi:10.1088/0004-637X/694/2/1085, Bibcode: 2009ApJ...694.1085V 
  14. ↑ Abt, Helmut A.; Morrell, Nidia I. (July 1995), "The Relation between Rotational Velocities and Spectral Peculiarities among A-Type Stars", Astrophysical Journal Supplement 99: 135, doi:10.1086/192182, Bibcode: 1995ApJS...99..135A. 



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