An artist's impression of Gliese 876 d as a terrestrial planet, with volcanic activity occurring on its night side
Discovery[1]
Discovered by
Rivera et al.
Discovery site
California and Carnegie Planet Search
Discovery date
June 13, 2005
Detection method
Doppler spectroscopy
Orbital characteristics[2][3]
Epoch BJD 2,450,602.09311
Semi-major axis
0.021020525+0.000000047 −0.000000053 AU
Eccentricity
0.035+0.033 −0.024
Orbital period (sidereal)
1.9377904+0.0000064 −0.0000073 d
Mean anomaly
104°+46.7° −46.9°
Inclination
56.7°+1.0° −0.99°
Argument of periastron
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)
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.
^Cite error: The named reference Rivera2005 was invoked but never defined (see the help page).
^Cite error: The named reference Millholland2018 was invoked but never defined (see the help page).
^ abCite error: The named reference Moutou2023 was invoked but never defined (see the help page).
Gliese876d is an exoplanet 15.2 light-years (4.7 parsecs) away in the constellation of Aquarius. The planet was the third planet discovered orbiting...
Gliese876 is a red dwarf star 15.2 light-years (4.7 parsecs) away from Earth in the constellation of Aquarius. It is one of the closest known stars to...
Gliese876 c is an exoplanet orbiting the red dwarf Gliese876, taking about 30 days to complete an orbit. The planet was discovered in April 2001 and...
Gliese876 e is an exoplanet orbiting the star Gliese876 in the constellation of Aquarius. It is in a 1:2:4 Laplace resonance with the planets Gliese...
being terrestrial planets were found: Gliese876d and OGLE-2005-BLG-390Lb. Gliese876d orbits the red dwarf Gliese876, 15 light years from Earth, and has...
atmospheric escape that sustains its giant exosphere. Janssen Gliese 581 b Gliese876d HAT-P-11b Butler, R. Paul; et al. (2004). "A Neptune-Mass Planet...
first super-Earth discovered around a main sequence star, predating Gliese876d by a year. It takes fewer than 18 hours to complete an orbit and is the...
was the fifth planet found around a red dwarf star (after Gliese876's planets and Gliese 436 b). The planet was discovered using the HARPS instrument...
estimates of its mass, radius, and orbital parameters. CoRoT-7b Gliese 581 c Gliese 581 dGliese876d HD 149026 b Lists of astronomical objects MOA-2007-BLG-192Lb...
Neptune and Uranus is unknown. Theoretical models of extrasolar planet Gliese876d have posited an ocean of pressurized, supercritical fluid water with...
according to density models compiled by Diana Valencia and her team for Gliese876d. Gravity on the surface of such an icy and/or watery planet would be...
September 2012, the discovery of two planets orbiting Gliese 163 was announced. One of the planets, Gliese 163 c, about 6.9 times the mass of Earth and somewhat...
Gliese 445 (Gl 445 or AC +79 3888) is an M-type main sequence star in the northern part of the constellation Camelopardalis. It is currently 17.1 light-years...
tidally heated super-earths (super-ios) using a sulfur solubility model of Gliese876d" (PDF). 45th Lunar and Planetary Science Conference. Essack, Zahra; Seager...
Gliese 581 (/ˈɡliːzə/) is a red dwarf star of spectral type M3V at the center of the Gliese 581 planetary system, about 20.5 light years away from Earth...
"Stellar activity masquerading as planets in the habitable zone of the M dwarf Gliese 581". Science. 345 (6195): 440–444. arXiv:1407.1049. Bibcode:2014Sci...345...
Gliese 229 (also written as Gl 229 or GJ 229) is a binary system composed of a red dwarf and the first brown dwarf seen by astronomers, 18.8 light years...
1998 for a planet orbiting around Gliese876 (15.3 light-years (ly) away), and the latest as of 2023 are two around Gliese 367 (30.7 ly). The closest exoplanets...
of the original Gliese stars, the "Gliese" designation can therefore be shortened to "GJ"; for example, either "Gliese876" or "GJ 876" is valid, with...
49 MJ, which is at the borderline between planets and brown dwarfs. Gliese 581 Gliese876 van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction"...
planetary interpretation. Gliese876 b: In 1998, the first planet was found that orbits around a red dwarf star (Gliese876). It is closer to its star...
Ross 248, also called HH Andromedae or Gliese 905, is a small star approximately 10.30 light-years (3.16 parsecs) from Earth in the northern constellation...
Gliese 832 (Gl 832 or GJ 832) is a red dwarf of spectral type M2V in the southern constellation Grus. The apparent visual magnitude of 8.66 means that...
is 4. For example, the stars Gliese 644A and Gliese 644B form what appears to be a close visual binary star; because Gliese 644B is a spectroscopic binary...
Gliese 570 (or 33 G. Librae) is a quaternary star system approximately 19 light-years away. The primary star is an orange dwarf star (much dimmer and smaller...
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