Zeta Piscis Austrini

Zeta Piscis Austrini
Diagram showing star positions and boundaries of the Piscis Austrinus constellation and its surroundings
Location of ζ Piscis Austrini (circled)
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Piscis Austrinus
Right ascension 22h 30m 53.77352s[1]
Declination −26° 04′ 25.5040″[1]
Apparent magnitude (V) +6.43[2]
Characteristics
Spectral type K1 III[3]
B−V color index +1.08[2]
Astrometry
Proper motion (μ) RA: +40.83[1] mas/yr
Dec.: −75.04[1] mas/yr
Parallax (π)7.55 ± 0.55[1] mas
Distance430 ± 30 ly
(132 ± 10 pc)
Absolute magnitude (MV)+0.83[4]
Details
Luminosity61[4] L☉
Other designations
ζ PsA, CPD−26° 7379, FK5 5986, HD 213296, HIP 111138, HR 8570, SAO 191196[5]
Database references
SIMBADdata

Zeta Piscis Austrini (ζ Piscis Austrini) is an orange-hued star in the southern constellation of Piscis Austrinus. It has an apparent visual magnitude of +6.43, which is near the lower limit of stars that can be seen with the naked eye. Based upon an annual parallax shift of 7.55 mas as seen from the Earth,[1] the star is located roughly 820 light years from the Sun. This is an evolved K-type giant star with a stellar classification of K1 III.[3] It is a suspected variable star.[6]

References

  1. 1 2 3 4 5 6 van Leeuwen, F. (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 Corben, P. M.; Stoy, R. H. (1968), "Photoelectric Magnitudes and Colours for Bright Southern Stars", Monthly Notes of the Astronomical Society of Southern Africa, 27: 11, Bibcode:1968MNSSA..27...11C.
  3. 1 2 Houk, Nancy (1979), Michigan catalogue of two-dimensional spectral types for the HD stars, 3, Ann Arbor, Michigan: Department of Astronomy, University of Michigan, Bibcode:1982mcts.book.....H.
  4. 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.
  5. ↑ "zet PsA". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2017-05-18.
  6. ↑ Demartino, Robert; et al. (April 1996), "Accurate Positions Of Suspected Variable Stars Near The South Galactic Pole", Information Bulletin on Variable Stars, 4322: 1, Bibcode:1996IBVS.4322....1D.
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