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Table 2
Stellar parameters of HD 4747.
| Parameter | Value | Ref. |
|---|---|---|
| V (mag) | 7.15 | HIPPARCOS |
| B−V (mag) | 0.769 ± 0.009 | HIPPARCOS |
| V −I (mag) | 0.82 ± 0.02 | HIPPARCOS |
| J (mag) | 5.813 ± 0.021 | 2MASS |
| H (mag) | 5.433 ± 0.049 | 2MASS |
| K (mag) | 5.305 ± 0.029 | 2MASS |
| Parallax (mas) | 53.51 ± 0.53 | van Leeuwen (2007) |
| Parallax (mas) | 50.37 ± 0.55 | Gaia Collaboration (2016) |
| Parallax (mas) | 51.94 ± 1.57 | Adopted for this paper |
| μα (mas yr−1) | 516.92 ± 0.55 | van Leeuwen (2007) |
| μδ (mas yr−1) | 120.05 ± 0.45 | van Leeuwen (2007) |
| μα (mas yr−1) | 515.509 ± 0.032 | Gaia Collaboration (2016) |
| μδ (mas yr−1) | 125.472 ± 0.031 | Gaia Collaboration (2016) |
| Teff (K) | 5400 ± 60 | This paper |
| log g | 4.60 ± 0.15 | This paper |
| [Fe/H] | −0.23 ± 0.05 | This paper |
| v sin i (km s−1) | 2 ± 1 | This paper |
| log RHK | −4.725 | Keck |
| log RHK | −4.718 | CORALIE |
| Prot (days) | 27.7 ± 0.5 | This paper |
| log LX∕Lbol | −5.52 | Katsova & Livshits (2011) |
| EW Li (mÅ) | 0 | This paper |
| Age (Gyr) | 2.3 ± 1.4 | This paper |
| Mstar (M⊙) | 0.856 ± 0.014 | This paper |
| Rstar (R⊙) | 0.769 ± 0.016 | This paper |
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