Open Access
Table 1.
Relevant parameters of Barnard’s star.
| Parameter | Symbol | Unit | Value | Ref. |
|---|---|---|---|---|
| Right ascension | αJ2000 | – | 17h57m48.5s | 2 |
| Declination | δJ2000 | – | +04°41′36.1″ | 2 |
| Eff. temperature | Teff | K | 3195±28 | 1 |
| Mass | M⋆ | M⊙ | 0.162±0.007 | 3 |
| Radius | R⋆ | R⊙ | 0.185±0.006 | 3 |
| Surface gravity | log10g | cm s−2 | 4.90±0.09 | 1 |
| Metallicity | [Fe/H] | dex | –0.56±0.07 | 1 |
Notes. (1) González Hernández et al. (2024; 2) Gaia Collaboration (2023; 3) Schweitzer et al. (2019).
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