Back Estrella de Barnard b Catalan Barnardova hvězda b Czech Barnard b Spanish بارنارد بی FA Barnard b French כוכב ברנרד b HE बर्नार्ड तारा बी HI Bintang Barnard b ID Barnard b Italian バーナード星b Japanese
.jpg) Artist's impression of Barnard b | |
| Discovery[1] | |
|---|---|
| Discovered by | González Hernández et al. |
| Discovery site | ESPRESSO (VLT) |
| Discovery date | October 2024 |
| Radial velocity | |
| Designations | |
| Barnard b, GJ 699 b | |
| Orbital characteristics[1] | |
| 0.02294±0.00033 AU | |
| Eccentricity | <0.16 |
| 3.1533±0.0006 d | |
| Semi-amplitude | 0.55±0.07 m/s |
| Star | Barnard's Star |
| Physical characteristics[1] | |
| Mass | ≥0.37±0.05 M🜨 |
| Temperature | 400±7 K (127 °C; 260 °F, equilibrium) |
Barnard's Star b, or Barnard b, is a sub-Earth-mass exoplanet closely orbiting Barnard's Star, a nearby red dwarf star six light-years from Earth. The planet was discovered using radial velocity observations from the ESPRESSO spectrograph on the Very Large Telescope, and was announced on 1 October 2024.[2]
The designation "Barnard's Star b" was first used for a different planetary candidate announced in 2018,[3] the existence of which was later refuted.[4]
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