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Table 3
K2-111 system parameters.
| Parameter | Units | Value | Comment |
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| Stellar parameters | |||
| M∗ (Spectra) | Mass (M⊙) | 1.0 ± 0.07 | Torres et al. (2010) |
| R∗ (Spectra) | Radius (R⊙) | 1.4 ± 0.14 | Torres et al. (2010) |
| M∗ (Model) | Mass (M⊙) | 0.88 ± 0.02 | DSEP Sect. 5 |
| R∗ (Model) | Radius (R⊙) | 1.23 ± 0.1 | DSEP Sect. 5 |
| M∗ (Model) | Mass (M⊙) | 0.86 ± 0.04 | PARAM 1.3 model Table 5 |
| R∗ (Model) | Radius (R⊙) | 1.28 ± 0.36 | PARAM 1.3 model Table 5 |
| L∗ (Spectra) | Luminosity (L⊙) |
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| ρ ∗ | Density (g/cm3) | 0.51 ± 0.16 | |
| T eff | Effective temperature (K) | 5730 ± 50 | |
| log (g∗) | Surface gravity (cgs) – Spectroscopy only | 4.15 ± 0.1 | |
| [Fe/H] | Iron abundance | − 0.53 ± 0.05 | |
| Age | Gyr | 10.770 ± 1.450 | PARAM 1.3 model Table 5 |
| Distance | pc | 210 ± 20 | PARAM 1.3 model Table 5 |
| Transit and orbit parameters | |||
| P | Period (days) | 5.35117 ± 0.00055 | |
| T C | Time of transit (BJDTDB) |
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| T 14 | Total duration (hours) |
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| τ | Ingress/egress duration (hours) |
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| b | Impact parameter |
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| i | Inclination (degrees) | 86.2 ± 1.0 deg | |
| e | Eccentricity | 0 (fixed) | |
| R P / R ∗ | Radius of planet in stellar radii |
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| a / R ∗ | Semi-major axis in stellar radii |
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| u 1 | Linear limb-darkening coeff | 0.38 ± 0.08 | |
| u 2 | Quadratic limb-darkening coeff | 0.28 ± 0.08 | |
| RV parameters | |||
| K | RV semi-amplitude variation (m s-1) | 3.1 ± 1.4 | |
| γ FIES | Systemic velocity (FIES) (km s-1) | − 16.3372 ± 0.0224 | |
| γ HARPS − N | Systemic velocity (HARPS-N) (km s-1) | − 16.2120 ± 0.0224 | |
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Radial acceleration (m s-1 d-1) | − 0.217 ± 0.077 | |
| Planetary parameters | |||
| R P | Planet radius (R⊕) | 1.9 ± 0.2 R ⊕ | |
| M P | Planet mass (M⊕) | 8.6 ± 3.9 M ⊕ | |
| ρ p | Planet density (g cm-3) |
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| a | Semi-major axis (AU) |  AU |
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| T eq | Equilibrium temperature(1) (K) |  K |
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