16 Cephei
| 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 |
| Distance | 119.8 ± 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 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 2 3 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.Vizier catalog entry
- 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.
- ↑ 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/0012289. Bibcode:2001A&A...367..521P. doi:10.1051/0004-6361:20000451.
- ↑ 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:0806.2878. Bibcode:2008MNRAS.389..869E. doi:10.1111/j.1365-2966.2008.13596.x.
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