Open Access
Table 1
Stellar parameters.
| Parameter | Value | Source |
|---|---|---|
| Names | GJ7, TOI-198, LHS 1026 | |
| TIC ID | 12421862 | TESS |
| α (h m s, eq. J2000) | 00:09:04.36 | Gaia EDR3 |
| δ (o ′ ″, eq. J2000) | −27:07:19.68 | Gaia EDR3 |
| μα cos δ (mas yr−1) | 692.224 ± 0.027 | Gaia EDR3 |
| μδ (mas yr−1) | 90.067 ± 0.026 | Gaia EDR3 |
| w (mas) | 42.0592 ± 0.0324 | Gaia EDR3 |
| d (pc) | 23.7760 ± 0.0183 | Gaia EDR3 |
| vr (km s−1) | 19.70 ± 0.18 | Gaia EDR3 |
| G (mag) | 10.916 ± 0.003 | Gaia EDR3 |
| J (mag) | 8.655 ± 0.024 | 2MASS |
| H (mag) | 8.143 ± 0.036 | 2MASS |
| K (mag) | 7.856 ± 0.021 | 2MASS |
| vt (km s−1 ) | 78.67 ± 0.05 | This work |
| U (km s−1) | −69.930,± 0.035 | This work |
| V (km s−1) | −25.612 ± 0.005 | This work |
| W (km s−1 ) | −32.127 ± 0.187 | This work |
| L∗/L⊙ | 0.0328 ± 0.0010 | This work |
| log L∗/L⊙ | −1.484 ± 0.013 | This work |
| Teff (K) | 3801 ± 100 | This work |
| [Fe/H] (dex) | −0.66 ± 0.10 | This work |
| log RHK (dex) | −5.355 ± 0.054 | This work |
| log g∗ (cm s−2)∗ | 4.71 ± 0.13 | This work |
| log g∗ (cm s−2)∗∗ | 4.81 ± 0.10 | This work |
| R∗ (R⊙) | 0.418 ± 0.029 | This work |
| M∗ (M⊙) | 0.417 ± 0.045 | This work |
| Prot (d) | 48.5 ± 1.0 | This work |
| Age (Gyr) | ≥1 | This work |
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