Short description: Star in the constellation Andromeda
41 Andromedae is a single[10] star in the northern constellation of Andromeda. 41 Andromedae is the Flamsteed designation. It is bright enough to be faintly visible to the naked eye, having an apparent visual magnitude of 5.04.[2] Based upon an annual parallax shift of 16.4 mas,[1] it is located 198 light years away. The star is moving further from the Earth with a heliocentric radial velocity of +10 km/s[5] and it has a relatively high rate of proper motion, traversing the celestial sphere at the rate of 0.171″ per year.[11]
The stellar classification for this star is A2IIIvs,[3] matching an A-type giant star with narrow (sharp) absorption lines. Abt and Levy (1985) classed it as a kA2hA6mA6[4] star, which indicates the spectrum has the calcium K line of an A2 star, the hydrogen lines of an A6 star, and the metal lines of an A6 star. It is around 450[7] million years old and is spinning with a projected rotational velocity of 84 km/s.[8] The star has 2.27[7] times the mass of the Sun and is radiating 29[6] times the Sun's luminosity from its photosphere at an effective temperature of 8,511 K.[2]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 Vallenari, A. et al. (2022). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy & Astrophysics. doi:10.1051/0004-6361/202243940 Gaia DR3 record for this source at VizieR.
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 Baines, Ellyn K. et al. (2018), "Fundamental Parameters of 87 Stars from the Navy Precision Optical Interferometer", The Astronomical Journal 155 (1): 30, doi:10.3847/1538-3881/aa9d8b, Bibcode: 2018AJ....155...30B.
- ↑ 3.0 3.1 Barry, Don C. (1970). "Spectral Classification of a and F Stars". Astrophysical Journal Supplement 19: 281. doi:10.1086/190209. Bibcode: 1970ApJS...19..281B.
- ↑ 4.0 4.1 Abt, H. A.; Levy, S. G. (1985), "Improved study of metallic-line binaries", The Astrophysical Journal Supplement Series 59: 229, doi:10.1086/191070, Bibcode: 1985ApJS...59..229A.
- ↑ 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 Anderson, E.; Francis, Ch. (2012), "XHIP: An extended hipparcos compilation", Astronomy Letters 38 (5): 331, doi:10.1134/S1063773712050015, Bibcode: 2012AstL...38..331A.
- ↑ 7.0 7.1 7.2 7.3 De Rosa, R. J. et al. (January 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.
- ↑ 8.0 8.1 Royer, F. et al. (October 2002), "Rotational velocities of A-type stars in the northern hemisphere. II. Measurement of v sin i", Astronomy and Astrophysics 393 (3): 897–911, doi:10.1051/0004-6361:20020943, Bibcode: 2002A&A...393..897R.
- ↑ "HD 6658". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+6658.
- ↑ Eggleton, P. P.; Tokovinin, A. A. (2008), "A catalogue of multiplicity among bright stellar systems", Monthly Notices of the Royal Astronomical Society 389 (2): 869, doi:10.1111/j.1365-2966.2008.13596.x, Bibcode: 2008MNRAS.389..869E.
- ↑ Lépine, Sébastien; Shara, Michael M. (March 2005), "A Catalog of Northern Stars with Annual Proper Motions Larger than 0.15" (LSPM-NORTH Catalog)", The Astronomical Journal 129 (3): 1483–1522, doi:10.1086/427854, Bibcode: 2005AJ....129.1483L.
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