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
Detection method
Doppler spectroscopy
Orbital characteristics[4]
Epoch 2,450,602.09311 BJD
Semi-major axis
0.218627±0.000017 AU
Eccentricity
0.0325+0.0016 −0.0017
Orbital period (sidereal)
61.1057±0.0074 d
Mean anomaly
340.6+4.4 −4 º
Inclination
53.06±0.85 º[note 1]
Argument of perihelion
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 −9.4M🜨[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.
^Cite error: The named reference Marcy1998 was invoked but never defined (see the help page).
^Cite error: The named reference Delfosse1998 was invoked but never defined (see the help page).
^Cite error: The named reference Keck Observatory was invoked but never defined (see the help page).
^ abCite error: The named reference Millholland2018 was invoked but never defined (see the help page).
^"Archived copy". Archived from the original on 2016-08-19. Retrieved 2016-08-03.{{cite web}}: CS1 maint: archived copy as title (link)
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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 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...
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...
1:2:4 Laplace resonance with the planets Gliese876 c and Gliese876b: for each orbit of planet e, planet b completes two orbits and planet c completes...
Gliese 436 b /ˈɡliːzə/ (sometimes called GJ 436 b, formally named Awohali) is a Neptune-sized exoplanet orbiting the red dwarf Gliese 436. It was the...
GJ 1214 b (sometimes Gliese 1214 b, formally named Enaiposha) is an exoplanet that orbits the star GJ 1214, and was discovered in December 2009. Its parent...
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,...
(1998). "The closest extrasolar planet. A giant planet around the M4 dwarf GL 876". Astronomy and Astrophysics. 338: L67–L70. arXiv:astro-ph/9808026. Bibcode:1998A&A...
previously longest-period Jupiter-like planet around a red dwarf was Gliese876b. There are, however, two disproven longer period Jupiter-like planets...
year-round. Gliese876b, discovered in 1998, and Gliese876 c, discovered in 2001, are both gas giants discovered in the habitable zone around Gliese876 that...
"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 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...
Gliese 581c /ˈɡliːzə/ (Gl 581c or GJ 581c) is an exoplanet orbiting within the Gliese 581 system. It is the second planet discovered in the system and...
giant planets around red dwarfs: HIP 79431 bGliese 849 bGliese876bGliese876 c Gliese 317 bGliese 832 b Howard, Andrew W.; et al. (2010). "The California...
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...
Jeffrey; Shectman, Stephen; Thompson, Ian (2018-02-08). "New Constraints on Gliese876 -- Exemplar of Mean-Motion Resonance". The Astronomical Journal. 155 (3):...
Titan-mass exomoons for timescales longer than 0.8 Gyr (HIP 12961 b, HIP 57050 b, Gliese876b and c). For this mass range the exomoons could probably not hold...
located within a habitable zone (such as Gliese876b, 55 Cancri f, Upsilon Andromedae d, 47 Ursae Majoris b, HD 28185 b and HD 37124 c) are of particular interest...
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...
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...
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"...
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 832 b (Gl 832 b or GJ 832 b) is a gas giant exoplanet about 80% the mass of Jupiter, located 16.2 light-years from the Sun in the constellation...
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