Gliese 876 b
Extrasolar planet orbiting Gliese 876 / From Wikipedia, the free encyclopedia
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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.
Quick Facts Discovered by, Discovery site ...
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] |
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