Short description: Star in the constellation Aquarius
5 Aquarii is a single[9] star in the zodiac constellation of Aquarius,[8] located about 830 light years away from the Sun,[1] based on parallax. 5 Aquarii is the Flamsteed designation. It is visible to the naked eye as a faint, blue-white hued star with an apparent visual magnitude of 5.55.[2] This object is moving closer to the Earth with a heliocentric radial velocity of −3 km/s.[4]
This is a suspected chemically peculiar star[10][6] star with a stellar classification of B9 III,[3] although Adelman et al. (2004) consider it to be a normal star with near-solar elemental abundances.[11] It is relatively sharp-lined[11] with a projected rotational velocity of 25 km/s.[7] The star is radiating 318 times the luminosity of the Sun from its photosphere at an effective temperature of 11,200 K.[6]
References
- ↑ 1.0 1.1 1.2 1.3 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.
- ↑ 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 Houk, N. (1978), Michigan catalogue of two-dimensional spectral types for the HD stars, 2, Dept. of Astronomy, University of Michigan, Bibcode: 1978mcts.book.....H.
- ↑ 4.0 4.1 Gontcharov, G. A. (November 2006), "Pulkovo Compilation of Radial Velocities for 35495 Hipparcos stars in a common system", Astronomy Letters 32 (11): 759–771, doi:10.1134/S1063773706110065, Bibcode: 2006AstL...32..759G.
- ↑ 5.0 5.1 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.
- ↑ 6.0 6.1 6.2 6.3 6.4 Adelman, S. J. (April 1986), "Optical region elemental abundance analyses of B and A stars. V. The normal stars theta Leonis, tau Herculis, 14 Cygni and 5 Aquarii", Astronomy and Astrophysics Supplement Series 64: 173−187, Bibcode: 1986A&AS...64..173A.
- ↑ 7.0 7.1 Abt, Helmut A. et al. (July 2002), "Rotational Velocities of B Stars", The Astrophysical Journal 573 (1): 359–365, doi:10.1086/340590, Bibcode: 2002ApJ...573..359A
- ↑ 8.0 8.1 "5 Aqr". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=5+Aqr.
- ↑ 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
- ↑ Renson, P.; Manfroid, J. (May 2009), "Catalogue of Ap, HgMn and Am stars", Astronomy and Astrophysics 498 (3): 961–966, doi:10.1051/0004-6361/200810788, Bibcode: 2009A&A...498..961R, https://zenodo.org/record/890529.
- ↑ 11.0 11.1 Adelman, Saul J. et al. (December 2004), "Elemental abundance studies using the EBASIM spectrograph of the 2.1-m CASLEO Observatory telescope. I. The normal stars 5 Aqr and 30 Peg", in Zverko, J.; Ziznovsky, J.; Adelman, S. J. et al., The A-Star Puzzle, held in Poprad, Slovakia, July 8-13, 2004., IAU Symposium, 224, Cambridge, UK: Cambridge University Press, pp. 530–532, doi:10.1017/S1743921305009282, Bibcode: 2004IAUS..224..530A
External links
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