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Exoplanet HD 158259 g
(Unconfirmed Exoplanet)
HD 158259 g is an unconfirmed exoplanet detected around star HD 158259. More observations are needed to confirm its existence.
Sun distance
88 light years
88 light years
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HD 158259 g
Exoplanet
Star: HD 158259
Distance from the star: 0.135 AU
Orbit around star: 17.39 days
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Orbital period
Orbital period of exoplanet HD 158259 g around its star is 17.39 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: 6.9 M Earth
Exoplanet mass
Exoplanet HD 158259 g has 6.9 Earth masses, or 0.47 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
HIP 85268 g, 2MASS J17252406+5247263 g, TYC 3888-1886-1 g, TOI-1462 g, GSC 03888-01886 g
HIP 85268 g, 2MASS J17252406+5247263 g, TYC 3888-1886-1 g, TOI-1462 g, GSC 03888-01886 g
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HD 158259 system structure
Exoplanet HD 158259 g orbits star HD 158259, which has lower mass than Sun. It is one of 6 known exoplanets orbiting this star.
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HD 158259 | ||||||||
| HD 158259 b | 0.03 AU | 2.2 M⊕ | 1.2 R⊕ | 2.2 days | |||||
| HD 158259 c | 0.05 AU | 5.6 M⊕ | 3.4 days | ||||||
| HD 158259 d | 0.06 AU | 5.4 M⊕ | 5.2 days | ||||||
| HD 158259 e | 0.08 AU | 6.1 M⊕ | 8 days | ||||||
| HD 158259 f | 0.11 AU | 6.1 M⊕ | 12 days | ||||||
| HD 158259 g unconfirmed |
0.14 AU | 6.9 M⊕ | 17.4 days | ||||||
Comparison
When comparing to the Solar system planets, HD 158259 g has 47 % 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 | 125.45 | 8.47 | 6.9 | 62.73 | 0.02 | 0.07 | 0.47 | 0.4 |
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Distance | 0.35 | 0.19 | 0.14 | 0.09 | 0.03 | 0.01 | 0.01 | 0 |
Habitability
Habitable zone of the star: 1.4 - 2 AU
The planet is too hot to sustain liquid water.