Gliese 876 d
Super-Earth orbiting Gliese 876 / From Wikipedia, the free encyclopedia
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Gliese 876 d is an exoplanet 15.2 light-years (4.7 parsecs) away in the constellation of Aquarius. The planet was the third planet discovered orbiting the red dwarf Gliese 876, and is the innermost planet in the system. It was the lowest-mass known exoplanet apart from the pulsar planets orbiting PSR B1257+12 at the time of its discovery. Due to its low mass, it can be categorized as a super-Earth.
Quick Facts Discovery, Discovered by ...
Discovery[1] | |
---|---|
Discovered by | Rivera et al. |
Discovery site | California and Carnegie Planet Search |
Discovery date | June 13, 2005 |
Doppler spectroscopy | |
Orbital characteristics[2][3] | |
Epoch BJD 2,450,602.09311 | |
0.021020525+0.000000047 −0.000000053 AU | |
Eccentricity | 0.035+0.033 −0.024 |
1.9377904+0.0000064 −0.0000073 d | |
104°+46.7° −46.9° | |
Inclination | 56.7°+1.0° −0.99° |
120°+70° −56° | |
Semi-amplitude | 6.0±0.19 m/s |
Star | Gliese 876 |
Physical characteristics | |
Mass | 6.68±0.22 M🜨[3] |
Temperature | 614 K (341 °C; 646 °F) |
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