Table 1
Stellar properties of Proxima, compiled from the literature.
| Parameter | Value | ref. |
|---|---|---|
| Parallax [mas] | 768.50 ± 0.20 | 1 |
| Distance [pc] | 1.3012 ± 0.0003 | 1 |
| mV [mag] | 11.13 ± 0.01 | 2 |
| Spectral type | M5.5V | 3 |
| L* / L⊙ | 0.0016 ± 0.0006 | 4 |
| Teff [K] | 2900 ± 100 | 5 |
| M* [M⊙] | 0.1221 ± 0.0022 | 6 |
| R* [R⊙] | 0.141 ± 0.021 | 4 |
| Prot [days] | 90 ± 4 | 7 |
| HZ range [au] | 0.0423 – 0.0816 | 8 |
| HZ periods [days] | 9.1 – 24.5 | 8 |
References. The references for each parameter are as follows: 1 - Gaia Collaboration (2016) 2 - Jao et al. (2014) 3 - Bessell (1991), 4 - Boyajian et al. (2012), 5 - Pavlenko et al. (2017), 6 - Mann et al. (2015), 7 - Klein et al. (2021), 8 - Delfosse et al. (2000). These values match those used by SM2020, although we only use the stellar mass determination from Mann et al. (2015).
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