Zeta2 Lyrae
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Lyra |
| Right ascension | 18h 44m 48.204s[1] |
| Declination | +37° 35′ 40.62″[1] |
| Apparent magnitude (V) | 5.23[2] |
| Characteristics | |
| Spectral type | F0IVv |
| Astrometry | |
| Radial velocity (Rv) | -25.00 ± 3.7 km/s |
| Proper motion (μ) | RA: 18.70.12 ± 0.21[1] mas/yr Dec.: 20.98 ± 0.29[1] mas/yr |
| Parallax (π) | 20.97 ± 0.24 mas[1] |
| Distance | 156 ± 2 ly (47.7 ± 0.5 pc) |
| Details | |
| Other designations | |
Zeta2 Lyrae is a star in the constellation Lyra. It is a white star of spectral type F0IV and a suspected variable.[2] Located around 155 light-years distant, it shines with a luminosity approximately 9 times that of the Sun and has a surface temperature of 7000 K.[3]
References
- ^ a b c d e 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.
- ^ a b c SIMBAD, Zeta2 Lyrae (accessed 25 July 2015)
- ^ McDonald, I.; Zijlstra, A. A.; Boyer, M. L. (2012). "Fundamental Parameters and Infrared Excesses of Hipparcos Stars". Monthly Notices of the Royal Astronomical Society. 427 (1): 343–57. arXiv:1208.2037. Bibcode:2012MNRAS.427..343M. doi:10.1111/j.1365-2966.2012.21873.x.
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