 An artist's impression of Gliese 876 b | |
| Discovery[1][2][3] | |
|---|---|
| Discovered by | California and Carnegie Planet Search Team and independently by the Geneva Extrasolar Planet Search Team |
| Discovery site | Lick, Keck, Haute-Provence and La Silla Observatories |
| Discovery date | June 22, 1998 |
| Doppler spectroscopy | |
| Orbital characteristics[4] | |
| Epoch 2,450,602.09311 BJD | |
| 0.218627±0.000017 AU | |
| Eccentricity | 0.0325+0.0016 −0.0017 |
| 61.1057±0.0074 d | |
| 340.6+4.4 −4 º | |
| Inclination | 53.06±0.85 º[note 1] |
| 35.5+4.1 −4.4 º | |
| Semi-amplitude | 211.57+0.3 −0.29 m/s |
| Star | Gliese 876 |
| Physical characteristics[4] | |
| Mass | 845.2+9.5 −9.4 M🜨[note 2] |
| Temperature | 194 K (−79 °C; −110 °F)[5] |
Gliese 876 b is an exoplanet orbiting the red dwarf Gliese 876. It completes one orbit in approximately 61 days. Discovered in June 1998, Gliese 876 b was the first planet to be discovered orbiting a red dwarf.
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