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Exoplanet Groombridge 34 A b
Exoplanet Groombridge 34 A b orbits star Groombridge 34 A that lies 12 light years away from the Sun.
It weighs about 3.98 Earth masses and orbits its star much closer than Earth orbits Sun.
Sun distance
12 light years
12 light years
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Groombridge 34 A b
Exoplanet, super-earth
Star: Groombridge 34 A
Distance from the star: 0.072 AU
Orbit around star: 11.436 days
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Orbital period
Orbital period of exoplanet Groombridge 34 A b around its star is 11.436 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
Basic characteristic
Mass: 3.98 M Earth
Exoplanet mass
Exoplanet Groombridge 34 A b has 3.98 Earth masses, or 0.27 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
GX Andromedae b, V* GX And b, BD+43° 44 b, GCTP 49 b, Gliese 15 A b, GJ 15 A b, Gl 15 A b, G 171-047 b, HD 1326 b, HIP 1475 b, LHS 3 b, LTT 10108 b, SAO 36248 b
GX Andromedae b, V* GX And b, BD+43° 44 b, GCTP 49 b, Gliese 15 A b, GJ 15 A b, Gl 15 A b, G 171-047 b, HD 1326 b, HIP 1475 b, LHS 3 b, LTT 10108 b, SAO 36248 b
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Groombridge 34 system structure
Exoplanet Groombridge 34 A b orbits star Groombridge 34 A, which has lower mass than Sun. It is one of 2 known exoplanets orbiting this star.
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Groombridge 34 A | ||||||||
| Groombridge 34 A b | 0.07 AU | 4 M⊕ | 11.4 days | ||||||
| Groombridge 34 A c | 5.4 AU | 35 M⊕ | 6694 days | ||||||
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Groombridge 34 B | 93 AU | |||||||
Comparison
When comparing to the Solar system planets, Groombridge 34 A b has 27 % 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 | 72.36 | 4.88 | 3.98 | 36.18 | 0.01 | 0.04 | 0.27 | 0.23 |
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Distance | 0.18 | 0.1 | 0.07 | 0.05 | 0.01 | 0.01 | 0 | 0 |
Habitability
Habitable zone of the star: 0.18 - 0.26 AU
The planet is too hot to sustain liquid water.
News from this star system
18. 10 2019
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