Star in the constellation Antlia
For other stars with this designation, see Zeta Antliae .
Zeta Antliae is the Bayer designation for a star in the southern constellation of Antlia , the air pump. With an apparent visual magnitude of 5.91, it is a relatively faint star that requires dark suburban skies for viewing with the naked eye. Parallax measurements show it to be located at a distance of roughly 386 light-years (118 parsecs ) from Earth.
The spectrum of this star matches a stellar classification of A9 IV, where the luminosity class of IV indicate that this is a subgiant star that is evolving away from the main sequence as the supply of hydrogen at its core is becoming exhausted. This is catalogued as an Am star , which means it is a chemically peculiar star that shows strong indications of certain trace metals in its spectrum. The chemical peculiarity is now considered doubtful.
References
^ van Leeuwen, F. (November 2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics , 474 (2): 653–664, arXiv :0708.1752 , Bibcode :2007A&A...474..653V , doi :10.1051/0004-6361:20078357 , S2CID 18759600 .
^ Mendoza, E. E.; Gomez, V. T.; Gonzalez, S. (June 1978), "UBVRI photometry of 225 Am stars", The Astronomical Journal , 83 : 606–614, Bibcode :1978AJ.....83..606M , doi :10.1086/112242 .
^ Houk, Nancy (1979), Michigan catalogue of two-dimensional spectral types for the HD stars , vol. 3, Ann Arbor, Michigan: Dept. of Astronomy, University of Michigan, Bibcode :1982mcts.book.....H .
Gontcharov, G. A. (November 2006), "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system", Astronomy Letters , 32 (11): 759–771, arXiv :1606.08053 , Bibcode :2006AstL...32..759G , doi :10.1134/S1063773706110065 , S2CID 119231169 .
^ 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 .Gaia DR2 record for this source at VizieR .
^ Hauck, B.; Curchod, A. (December 1980), "Properties of AM stars in the Geneva photometric system", Astronomy and Astrophysics , 92 (3): 289–295, Bibcode :1980A&A....92..289H .
^ Stassun K.G.; et al. (October 2019), "The revised TESS Input Catalog and Candidate Target List", The Astronomical Journal 158 (4): 138, arXiv :1905.10694 , Bibcode :2019AJ....158..138S , doi :10.3847/1538-3881/ab3467 , S2CID 166227927 .
"zet02 Ant" . SIMBAD Centre de données astronomiques de Strasbourg . Retrieved 2012-06-27.Renson, P.; Manfroid, J. (May 2009), "Catalogue of Ap, HgMn and Am stars", Astronomy and Astrophysics , 498 (3): 961–966, Bibcode :2009A&A...498..961R , doi :10.1051/0004-6361/200810788 .
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Zeta Antliae
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Location of ζ Antliae (circled)
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