Short description: Star in the constellation Andromeda
HD 14622 is a single[6][10] star in the northern constellation of Andromeda. It is dimly visible to the naked eye under good seeing conditions, having an apparent visual magnitude of 5.81.[2] Based upon an annual parallax shift of 20.9 mas,[1] it is located 156 light years away. The star is moving closer to the Earth with a heliocentric radial velocity of −35 km/s,[5] and is predicted to come within 96 light-years in around 812,000 years.[2]
The stellar classification of HD 14622 is F0 III–IV,[3] showing a mixed spectrum of an evolving subgiant and giant star; suggesting this is an intermediate-mass star that has used up its core hydrogen and is expanding. The star is suspected of being slightly variable, but this has not been conclusively proven.[4] It is around 890[6] million years old with 1.69[6] times the mass of the Sun. The star is radiating 8[7] times the Sun's luminosity from its photosphere at an effective temperature of approximately 7,000.[7]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 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.
- ↑ 2.0 2.1 2.2 2.3 2.4 Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters 38 (5): 331. doi:10.1134/S1063773712050015. Bibcode: 2012AstL...38..331A.
- ↑ 3.0 3.1 Cowley, Anne; Fraquelli, Dorothy (February 1974). "MK Spectral Types for Some Bright F Stars". Publications of the Astronomical Society of the Pacific 86 (509): 70. doi:10.1086/129562. Bibcode: 1974PASP...86...70C.
- ↑ 4.0 4.1 VSX (17 December 2005). "NSV 15454". AAVSO Website. American Association of Variable Star Observers. http://www.aavso.org/vsx/index.php?view=detail.top&oid=53929.
- ↑ 5.0 5.1 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.
- ↑ 6.0 6.1 6.2 6.3 6.4 De Rosa, R. J. et al. (2014). "The VAST Survey - III. The multiplicity of A-type stars within 75 pc". Monthly Notices of the Royal Astronomical Society 437 (2): 1216–1240. doi:10.1093/mnras/stt1932. Bibcode: 2014MNRAS.437.1216D.
- ↑ 7.0 7.1 7.2 7.3 McDonald, I. et al. (2012). "Fundamental parameters and infrared excesses of Hipparcos stars". Monthly Notices of the Royal Astronomical Society 427 (1): 343–357. doi:10.1111/j.1365-2966.2012.21873.x. Bibcode: 2012MNRAS.427..343M.
- ↑ Royer, F. et al. (2002). "Rotational velocities of A-type stars in the northern hemisphere. II. Measurement of v sin i". Astronomy and Astrophysics 393: 897–911. doi:10.1051/0004-6361:20020943. Bibcode: 2002A&A...393..897R.
- ↑ "HD 14622". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+14622.
- ↑ 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.
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