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Table 2
Properties of the star τ Boo (upper part) and τ Boo b (lower part).
| Parameter | Sym. | Value |
|---|---|---|
| Visible magnitudea | V | 4.50 |
| Distance (pc)b | d | 15.60 ± 0.17 |
| Effective temperature (K)c | Teff | 6399 ± 45 |
| Luminosity (L⊙)c | L* | 3.06 ± 0.16 |
| Mass (M⊙)c | M* | 1.38 ± 0.05 |
| Radius (R⊙)c | R* | 1.42 ± 0.08 |
| Surface gravity (cgs)d | logg |  |
| Systemic velocity (km s−1)e | γ | − 16.54 ± 0.34 |
| Metallicity (dex)c |  |
0.26 ± 0.03 |
| Age (Gyr)c | 0.9 ± 0.5 | |
| Rotation velocity (km s−1)c | vsin(i) | 14.27 ± 0.06 |
| Orbital period (days)c | P | 3.3124568 |
| ± 0.0000069 | ||
| Semi-major axis (AU)c | a | 0.049 ± 0.003 |
| Orbital inclination (deg)f | i | 44.5 ± 1.5 |
| Eccentricityc | e | 0.011 ± 0.006 |
| Mass (MJ)c | Mp | 6.13 ± 0.17 |
| Phase zero-point (HJD)f | T0 | 2 455 652.108 ± 0.004 |
References. (a) Adopted from Valenti & Fischer (2005). (b) Adopted from van Belle & von Braun (2009). (c) Adopted from Borsa et al. (2015). (d) Adopted from Takeda et al. (2007). (e) Adopted from Nidever et al. (2002). (f) Adopted from Brogi et al. (2012).
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