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Exoplanet Gliese 422 b
Exoplanet Gliese 422 b orbits star Gliese 422 that lies 41 light years away from the Sun.
It weighs about 11.07 Earth masses and orbits its star closer than Earth orbits Sun.
Sun distance
41 light years
41 light years
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Gliese 422 b
Exoplanet
Star: Gliese 422
Distance from the star: 0.111 AU
Orbit around star: 20.129 days
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Orbital period
Orbital period of exoplanet Gliese 422 b around its star is 20.129 days.
The orbital period of an exoplanet is the time it takes to complete one full orbit around its star, usually measured in days. Most of the exoplanets discovered so far have orbital periods of less than one year...
More about Orbital period in StellarGuide
Eccentricity: 0.11Basic characteristic
Mass: 11.07 M Earth
Exoplanet mass
Exoplanet Gliese 422 b has 11.07 Earth masses, or 0.76 times the mass of Uranus.
The mass of an exoplanet is one of the most important characteristics for understanding what kind of world it is — whether it’s small and rocky like Earth or large and gaseous like Jupiter. Mass provides key information about the planet’s composition, gravity, and formation history...
More about Exoplanet mass in StellarGuide
Year of discovery: 2014 (radial velocity)
Other designations of this exoplanet
HD 304043 b, LHS 40 b, GJ 422 b, HIP 55042 b, HIC 55042 b, LFT 784 b, L 192-72 b, LTT 4167 b, 2MASS J11160018-5732513 b, Innes star b, NLTT 26836 b, TIC 450545735 b, TYC 8624-3387-1 b, WISEA J111557.03-573239.3 b
HD 304043 b, LHS 40 b, GJ 422 b, HIP 55042 b, HIC 55042 b, LFT 784 b, L 192-72 b, LTT 4167 b, 2MASS J11160018-5732513 b, Innes star b, NLTT 26836 b, TIC 450545735 b, TYC 8624-3387-1 b, WISEA J111557.03-573239.3 b
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Gliese 422 system structure
Exoplanet Gliese 422 b orbits star Gliese 422, which has lower mass than Sun. It is the only known exoplanet orbiting this star
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Gliese 422 | ||||||||
| Gliese 422 b | 0.11 AU | 11.1 M⊕ | 20.1 days | ||||||
Comparison
When comparing to the Solar system planets, Gliese 422 b has 76 % of mass of Uranus and it orbits its star closer than Mercury orbits the Sun.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
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Mass | 201.27 | 13.58 | 11.07 | 100.64 | 0.03 | 0.12 | 0.76 | 0.64 |
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Distance | 0.28 | 0.15 | 0.11 | 0.07 | 0.02 | 0.01 | 0.01 | 0 |
Habitability
Habitable zone of the star: 0.13 - 0.19 AU
The planet is orbiting on the edge of the habitable zone of its star.