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Exoplanet Gliese 588 b
Exoplanet Gliese 588 b orbits star Gliese 588 that lies 19 light years away from the Sun.
It weighs about 2.4 Earth masses and orbits its star much closer than Earth orbits Sun.
Sun distance
19 light years
19 light years
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Gliese 588 b
Exoplanet
Star: Gliese 588
Distance from the star: 0.049 AUBasic characteristic
Mass: 2.4 M Earth
Exoplanet mass
Exoplanet Gliese 588 b has 2.4 Earth masses, or 0.16 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
Other designations of this exoplanet
CD-40 9712 b, HIP 76074 b, LHS 397 b, LTT 6210 b, TYC 7844-1976-1 b, 2MASS J15321302-4116314 b, GJ 588 b
CD-40 9712 b, HIP 76074 b, LHS 397 b, LTT 6210 b, TYC 7844-1976-1 b, 2MASS J15321302-4116314 b, GJ 588 b
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Gliese 588 system structure
Exoplanet Gliese 588 b orbits star Gliese 588, which has lower mass than Sun. It is one of 2 known exoplanets orbiting this star.
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|
Gliese 588 | ||||||||
| Gliese 588 b | 0.05 AU | 2.4 M⊕ | - | ||||||
| Gliese 588 c | 0.53 AU | 10.3 M⊕ | - | ||||||
Comparison
When comparing to the Solar system planets, Gliese 588 b has 16 % of mass of Uranus and it orbits its star closer than Mercury orbits the Sun.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
|
Mass | 43.64 | 2.94 | 2.4 | 21.82 | 0.01 | 0.03 | 0.16 | 0.14 |
|
Distance | 0.13 | 0.07 | 0.05 | 0.03 | 0.01 | 0.01 | 0 | 0 |
Habitability
Habitable zone of the star: 0.17 - 0.25 AU
The planet is too hot to sustain liquid water.
The planet has mass comparable to Earth.