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Exoplanet Gliese 239 b
Exoplanet Gliese 239 b orbits star Gliese 239 that lies 33 light years away from the Sun.
It weighs about 2.14 Earth masses and orbits its star much closer than Earth orbits Sun.
Sun distance
33 light years
33 light years
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Gliese 239 b
Exoplanet, super-earth
Star: Gliese 239
Distance from the star: 0.02933 AU
Orbit around star: 2.76953 days
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Orbital period
Orbital period of exoplanet Gliese 239 b around its star is 2.76953 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: 0.039Basic characteristic
Mass: 2.14 M Earth
Exoplanet mass
Exoplanet Gliese 239 b has 2.14 Earth masses, or 0.15 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
Size: 1.24 R Earth | 0.1 R Jupiter
Density: 6188 kg/m3 | 112.24 % Earth
Temperature: 709 K | 435.85 °C
Year of discovery: 2022 (transit)
Other designations of this exoplanet
LHS 1858 b, BD+17 1320 b, G 110-5 b, G 104-49 b, HD 260655 b, HIC 31635 b, HIP 31635 b, JP11 53 b, LFT 477 b, LTT 11880 b, NLTT 16743 b, 2MASS J06371092+1733526 b, Wolf 287 b, TOI-4599 b
LHS 1858 b, BD+17 1320 b, G 110-5 b, G 104-49 b, HD 260655 b, HIC 31635 b, HIP 31635 b, JP11 53 b, LFT 477 b, LTT 11880 b, NLTT 16743 b, 2MASS J06371092+1733526 b, Wolf 287 b, TOI-4599 b
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Gliese 239 system structure
Exoplanet Gliese 239 b orbits star Gliese 239, which has lower mass than Sun. It is one of 2 known exoplanets orbiting this star.
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Gliese 239 | ||||||||
| Gliese 239 b | 0.03 AU | 2.1 M⊕ | 1.2 R⊕ | 2.8 days | |||||
| Gliese 239 c | 0.05 AU | 3.1 M⊕ | 1.5 R⊕ | 5.7 days | |||||
Comparison
When comparing to the Solar system planets, Gliese 239 b has 15 % of mass of Uranus and it orbits its star closer than Mercury orbits the Sun.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
|
Mass | 38.91 | 2.63 | 2.14 | 19.45 | 0.01 | 0.02 | 0.15 | 0.12 |
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Size | 3.24 | 1.31 | 1.24 | 2.34 | 0.11 | 0.14 | 0.31 | 0.33 |
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Density | 1.15 | 1.18 | 1.12 | 1.52 | 4.97 | 8.88 | 4.92 | 3.58 |
|
Distance | 0.08 | 0.04 | 0.03 | 0.02 | 0.01 | 0 | 0 | 0 |
|
Temperature | 1.61 | 0.96 | 2.46 | 3.41 | 4.35 | 5.33 | 9.09 | 9.85 |
Habitability
Habitable zone of the star: 0.25 - 0.37 AU
The planet is too hot to sustain liquid water.
The planet has mass comparable to Earth.
News from this star system
22. 04 2022
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