Zeta Scuti

Zeta Scuti
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Scutum
Right ascension 18 23 39.58309h[1]
Declination −08° 56′ 03.7885″[1]
Apparent magnitude (V) +4.68[2]
Distance207 ± 13[1] ly
(63 ± 4 pc)
Spectral typeG9 IIIb Fe-0.5[3]
Other designations
HD 169156, HIP 90135, HR 6884, SAO 142267.[4]

Zeta Scuti (ζ Sct, ζ Scuti) is the Bayer designation for a star in the southern constellation of Scutum. It is a G-type giant star with an apparent magnitude of +4.68, approximately 207 light years from Earth. This is an astrometric binary system with a period of 6.5 years (2,374 days) and an orbital eccentricity of 0.10.[3]

References

  1. 1 2 3 van Leeuwen, F. (November 2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics, 474 (2): 653–664, arXiv:0708.1752Freely accessible, Bibcode:2007A&A...474..653V, doi:10.1051/0004-6361:20078357.
  2. ↑ 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 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, arXiv:0806.2878Freely accessible, Bibcode:2008MNRAS.389..869E, doi:10.1111/j.1365-2966.2008.13596.x.
  4. ↑ "zet Sct -- Spectroscopic binary", SIMBAD Astronomical Object Database, Centre de Données astronomiques de Strasbourg.
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