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Exoplanet HD 38858 b
Exoplanet HD 38858 b orbits star HD 38858 that lies 50 light years away from the Sun.
It weighs about 30.551 Earth masses and orbits its star further than Earth orbits Sun.
Sun distance
50 light years
50 light years
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HD 38858 b
Exoplanet
Star: HD 38858
Distance from the star: 1.0376 AU
Orbit around star: 407.15 days
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Orbital period
Orbital period of exoplanet HD 38858 b around its star is 407.15 days (or 1.1 years).
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: 0.27Basic characteristic
Mass: 30.551 M Earth
| 0.0961 M Jupiter
Exoplanet mass
Exoplanet HD 38858 b has 30.551 Earth masses (or 0.0961 Jupiter masses).
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: 2011 (radial velocity)
Other designations of this exoplanet
NS 0548-0405 b, Gliese 1085 b, GJ 1085 b, HIP 27435 b, HD 38858 b, HR 2007 b, BD-04 1244 b, LTT 2380 b, 1RXS J054837.7-040550 b
NS 0548-0405 b, Gliese 1085 b, GJ 1085 b, HIP 27435 b, HD 38858 b, HR 2007 b, BD-04 1244 b, LTT 2380 b, 1RXS J054837.7-040550 b
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HD 38858 system structure
Exoplanet HD 38858 b orbits star HD 38858, which has lower mass than Sun. It is the only known exoplanet orbiting this star
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HD 38858 | ||||||||
| HD 38858 b | 1.04 AU (HZ) | 30.6 M⊕ | 407.2 days | ||||||
Comparison
When comparing to the Solar system planets, HD 38858 b has 32 % of mass of Saturn and it orbits its star between distances of Earth and Mars from the Sun.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
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Mass | 555.47 | 37.49 | 30.55 | 277.74 | 0.1 | 0.32 | 2.09 | 1.78 |
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Distance | 2.66 | 1.44 | 1.04 | 0.68 | 0.2 | 0.11 | 0.05 | 0.03 |
Habitability
Habitable zone of the star: 0.98 - 1.4 AU
The planet is orbiting inside the habitable zone of its star.
The planet is a gas giant and has no surface, however life could still be possible in its atmosphere or on the potential moons orbiting the planet.