Tau Librae
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| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Libra |
| Right ascension | 15h 38m 39.38s |
| Declination | −29° 46′ 39.7″ |
| Apparent magnitude (V) | +3.66 |
| Absolute magnitude (V) | -2.01 |
| Distance | 445 ly (136.503 pc) |
| Spectral type | B2.5V |
| Other designations | |
Tau Librae (τ Lib, τ Librae) is a Class B2.5, fourth-magnitude star in the constellation Libra. Tau Librae is a stellar system located about 445 light-years from Earth. This star has 3.2 times the radius of the Sun and its outer atmosphere has an effective temperature of 20,911 K.[2]
References
- ↑ "HD 139365 -- Star", SIMBAD Astronomical Database, retrieved 2007-01-22
- ↑ Underhill, A. B. et al. (November 1979), "Effective temperatures, angular diameters, distances and linear radii for 160 O and B stars", Monthly Notices of the Royal Astronomical Society 189: 601–605, Bibcode:1979MNRAS.189..601U
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