16 Cephei

16 Cep A
Observation data
Epoch J2000      Equinox J2000
Constellation Cepheus
Right ascension 21h 59m 14.96555s
Declination +73° 10′ 47.6212″'
Apparent magnitude (V) 5.047
Characteristics
Spectral type F5V
Variable type None
Astrometry
Radial velocity (Rv)-20.60 ± 0.4 km/s
Proper motion (μ) RA: -68.62 ± 0.16[1] mas/yr
Dec.: -160.18 ± 0.16[1] mas/yr
Parallax (π)27.23 ± 0.17[1] mas
Distance119.8 ± 0.7 ly
(36.7 ± 0.2 pc)
Absolute magnitude (MV)2.17[2]
Details
Mass? M☉
Radius? R☉
Luminosity? L☉
Temperature? K
Metallicity-0.36[2]
Rotation?
Age? years
Other designations
* 16 Cep, GC 30800, BD+72° 1009, HD 209369, HIC 108535, HIP 108535, HR 8400, SAO 10216.

16 Cephei is a double star, about 120 light years from the Sun, in the constellation of Cepheus. It is composed of two stars of spectral type F5V,[3]a which might be an optical double system.[4]

References

  1. 1 2 3 van Leeuwen, F. (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.Vizier catalog entry
  2. 1 2 Griffin, R. F.; Suchkov, A. A. (2003). "The Nature of Overluminous F Stars Observed in a Radial-Velocity Survey". The Astrophysical Journal Supplement Series. 147 (1): 103–44. Bibcode:2003ApJS..147..103G. doi:10.1086/367855.
  3. ↑ Pasinetti Fracassini, L. E.; Pastori, L.; Covino, S.; Pozzi, A. (February 2001). "Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS) - Third edition - Comments and statistics". Astronomy and Astrophysics. 367: 521–524. arXiv:astro-ph/0012289Freely accessible. Bibcode:2001A&A...367..521P. doi:10.1051/0004-6361:20000451.
  4. ↑ Eggleton, P. P.; Tokovinin, A. A. (2008). "A catalogue of multiplicity among bright stellar systems". Monthly Notices of the Royal Astronomical Society. 389 (2): 869. arXiv:0806.2878Freely accessible. Bibcode:2008MNRAS.389..869E. doi:10.1111/j.1365-2966.2008.13596.x.
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