Iota Antliae

Iota Antliae
Diagram showing star positions and boundaries of the Antlia constellation and its surroundings
Location of ι Antliae (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Antlia
Right ascension 10h 56m 43.05206s[1]
Declination –37° 08′ 15.9552″[1]
Apparent magnitude (V) +4.60[2]
Characteristics
Spectral type K1 III[3]
U−B color index +0.84[2]
B−V color index +1.03[2]
Astrometry
Radial velocity (Rv)–0.2[4] km/s
Proper motion (μ) RA: +76.14±0.19[1] mas/yr
Dec.: −124.43±0.13[1] mas/yr
Parallax (π)17.16 ± 0.19[1] mas
Distance190 ± 2 ly
(58.3 ± 0.6 pc)
Absolute magnitude (MV)+0.77[5]
Details
Mass1.55[6] M☉
Luminosity60[5] L☉
Temperature4,786±22 K
Age3.32[6] Gyr
Other designations
CD–36° 6808, FK5 414, HD 94890, HIP 53502, HR 4273, SAO 201927.[7]
Database references
SIMBADdata

Iota Antliae (ι Ant, ι Antliae) is the Bayer designation for a star in the southern constellation of Antlia. It has an apparent visual magnitude of +4.60,[2] making it a faint naked eye star. From parallax measurements, the distance to this star can be estimated as 190 light-years (58 parsecs).[1] The spectrum of Iota Antliae matches a stellar classification of K1 III,[3] indicating that this is an evolved star that is now in its giant phase. It is a core helium fusing star that is classified as a member of the red clump evolutionary branch.[8]

References

  1. 1 2 3 4 5 6 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.
  2. 1 2 3 4 Johnson, H. L.; et al. (1966), "UBVRIJKL photometry of the bright stars", Communications of the Lunar and Planetary Laboratory, 4 (99), Bibcode:1966CoLPL...4...99J.
  3. 1 2 Houk, Nancy (1979), Michigan catalogue of two-dimensional spectral types for the HD stars, 3, Ann Arbor, Michigan: Dept. of Astronomy, University of Michigan, Bibcode:1982mcts.book.....H.
  4. ↑ Wielen, R.; et al. (1999), Sixth Catalogue of Fundamental Stars (FK6). Part I. Basic fundamental stars with direct solutions (35), Astronomisches Rechen-Institut Heidelberg, Bibcode:1999VeARI..35....1W.
  5. 1 2 Anderson, E.; Francis, Ch. (2012), "XHIP: An extended hipparcos compilation", Astronomy Letters, 38 (5): 331, arXiv:1108.4971, Bibcode:2012AstL...38..331A, doi:10.1134/S1063773712050015.
  6. 1 2 Luck, R. Earle (2015), "Abundances in the Local Region. I. G and K Giants", Astronomical Journal, 150 (3), 88, arXiv:1507.01466, Bibcode:2015AJ....150...88L, doi:10.1088/0004-6256/150/3/88.
  7. ↑ "iot Ant -- Star", SIMBAD Astronomical Object Database, Centre de Données astronomiques de Strasbourg, retrieved 2012-06-29.
  8. ↑ Kubiak, M.; et al. (June 2002), "Metal Abundance of Red Clump Stars in Baade's Window", Acta Astronomica, 52: 159–175, Bibcode:2002AcA....52..159K.


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