Open Access
Table 2
Stellar properties of Proxima.
| Parameter | Value | Ref. |
|---|---|---|
| RA (J2000) | 14:29:42.9461 | 1 |
| Dec (J2000) | −62:40:46.1647 | 1 |
| μα · cos δ (mas yr−1) | −3781.741 | 1 |
| μδ (mas yr−1) | −20.578 | 1 |
| Parallax (mas) | 768.067 ± 0.050 | 1 |
| Distance (pc) | 1.3012 ± 0.0003 | 1 |
| mB (mag) | 12.95 ± 0.01 | 2 |
| mV (mag) | 11.13 ± 0.01 | 2 |
| Spectral type | M5.5V | 3 |
| L* (L⊙) | 0.00151 ± 0.00008 | 4 |
| Teff (K) | 2900 ± 100 | 5 |
| M* (M⊙) | 0.1221 ± 0.0022 | 6 |
| R* (R⊙) | 0.141 ± 0.021 | 4 |
| i(°) | 47 ± 7 | 7 |
| Prot GP (days) | 83.2 ± 1.6 | 0 |
| Pcycle (days) | 6560 ± 85 | 0 |
| HZ inner edge (au) | 0.03731 ± 0.0075 | 8 |
| HZ outer edge (au) | 0.088 ± 0.017 | 8 |
| HZ inner period (days) | 7.5 ± 2.2 | 8 |
| HZ outer period (days) | 27.3 ± 7.8 | 8 |
Notes. 0 - This work, 1 - Gaia Collaboration (2021), 2 - Jao et al. (2014), 3 - Bessell (1991), 4 - Ribas et al. (2017), 5 - Pavlenko et al. (2017), 6 - Mann et al. (2015), 7 - Klein et al. (2021), 8 - estimated following Kopparapu et al. (2014, 2017).
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