Gliese 876 d

Gliese 876 d
An artist's impression of Gliese 876 d as a terrestrial planet, with volcanic activity occurring on its night side
Discovery[1]
Discovered byRivera et al.
Discovery siteCalifornia and
Carnegie Planet Search
Discovery dateJune 13, 2005
Doppler spectroscopy
Orbital characteristics[2][3]
Epoch BJD 2,450,602.09311
0.021020525+0.000000047
−0.000000053 AU
Eccentricity0.035+0.033
−0.024
1.9377904+0.0000064
−0.0000073 d
104°+46.7°
−46.9°
Inclination56.7°+1.0°
−0.99°
120°+70°
−56°
Semi-amplitude6.0±0.19 m/s
StarGliese 876
Physical characteristics
Mass6.68±0.22 M🜨[3]
Temperature614 K (341 °C; 646 °F)

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.

  1. ^ Cite error: The named reference Rivera2005 was invoked but never defined (see the help page).
  2. ^ Cite error: The named reference Millholland2018 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference Moutou2023 was invoked but never defined (see the help page).