Table 1
Stellar parameters of HD 23472.
| Parameter | Value and uncertainty |
|---|---|
| RAGAIS-CRF2 (hh:mm:ss.ssss) | 02:18:38.85 |
| DECGAIA-CRF2 (dd:mm:ss.ss) | −62: 46:02.18 |
| B mag(•) | 10.80 ± 0.05 |
| G mag | 9.3899 ± 0.0028 |
| V mag(•) | 9.72 ± 0.03 |
| K mag(•) | 7.21 ± 0.023 |
| H mag(•) | 7.347 ± 0.029 |
| J mag(•) | 7.865 ± 0.024 |
| Effective temperature Teff (K) | 4684± 99 |
| Surface gravity log g (g cm−2) | 4.16 ± 0.24 |
| Surface gravity log g(1) (g cm−2) | 4.53 ± 0.08 |
| Microturbulence (m s−1) | 0.25±0.49 |
| Iron abundance [Fe/H] (dex) | -0.20 ± 0.05 |
| Magnesium abundance [Mg/H] (dex) | -0.19 ± 0.09 |
| Silicon abundance [Si/H] (dex) | -0.18 ± 0.08 |
| log R′HK | -4.9969 ± 0.0002 |
| v sin i | 1.45 ± 0.17 |
| Spectral type | K4V |
| Parallax(*) p (mas) | 25.581 ± 0.013 |
| Distance to Earth(*) d (pc) | 39.080 ± 0.019 |
| Stellar mass M* (M⊙) | 0.67 ± 0.03 |
| Stellar radius R* (R⊙) | 0.71 ± 0.02 |
| Stellar density ρ* (ρ⊙) | 1.88 ± 0.18 |
| Stellar luminosity L*(L⊙) | 0.237 ± 0.015 |
Notes. (&)Parallax from Gaia EDR3 (Gaia Collaboration 2021) using the formulation of Lindegren et al. (2021). Distance from Bailer-Jones et al. (2021).(•)B and V magnitudes from (Høg et al. 2000) and K, H and J from (Cutri et al. 2003). (1)Trigonometric surface gravity derived using the Gaia eDR3 parallaxes (Gaia Collaboration 2021).
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