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Table 1
Stellar parameters for the stars analyzed in the present paper.
| Parameters | HD 208527 | HD 220074 | Reference |
| | |||
| Spectral type | K5 V | K1 V | Hipparcos (ESA 1997) |
| – | M2 III | Kidger et al. (2003); Tsvetkov et al. (2008) | |
| M1 III | M2 III | Deriveda | |
| mv [mag] | 6.4 | 6.4 | Hipparcos (ESA 1997) |
| Mv [mag] | –1.24 | –1.52 | Famaey et al. (2005) |
| B − V [mag] | 1.68 | 1.66 | Hipparcos (ESA 1997) |
| 1.70 ± 0.02 | 1.68 ± 0.01 | van Leeuwen (2007) | |
| V − K [mag] | 4.14 | 4.39 | Cutri et al. (2003) |
| age [Gyr] | 2.0 ± 1.3 | 4.5 ± 2.8 | Derivedb |
| Distance [pc] | 320.2 ± 61.1 | 290.2 ± 45.5 | Famaey et al. (2005) |
| RV [km s-1] | 4.79 ± 0.06 | –36.89 ± 0.21 | Famaey et al. (2005) |
| Parallax [mas] | 2.48 ± 0.38 | 3.08 ± 0.43 | van Leeuwen (2007) |
| Teff [K] | 3950 | 5080 | Wright et al. (2003) |
 |  | Ammons et al. (2006) | |
| 4035 ± 65 | 3935 ± 110 | This work | |
| [Fe / H] | –0.09 ± 0.16 | –0.25 ± 0.25 | This work |
| log g | 1.6 ± 0.3 | 1.3 ± 0.5 | This work |
| 1.4 ± 0.2 | 1.1 ± 0.2 | Derivedb | |
| R⋆ [R⊙] | 51.1 ± 8.3 | 49.7 ± 9.5 | Derivedb |
| M⋆ [M⊙] | 1.6 ± 0.4 | 1.2 ± 0.3 | Derivedb |
| vrot sin i [km s-1] | 3.6 | 3.0 | This work |
| Prot/sin i [days] | 660.0 ± 116.6 | 832.4 ± 156.7 | Deriveda |
| vmicro [km s-1] | 1.7 ± 0.3 | 1.6 ± 0.3 | This work |
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