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Exoplanet HD 218566 b
Exoplanet HD 218566 b orbits star HD 218566 that lies 94 light years away from the Sun.
It weighs about 66.76 Earth masses and orbits its star closer than Earth orbits Sun.
Sun distance
94 light years
94 light years
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HD 218566 b
Exoplanet
Star: HD 218566
Distance from the star: 0.6873 AU
Orbit around star: 225.7 days
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Orbital period
Orbital period of exoplanet HD 218566 b around its star is 225.7 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: 0.3Basic characteristic
Mass: 66.76 M Earth
| 0.2101 M Jupiter
Exoplanet mass
Exoplanet HD 218566 b has 66.76 Earth masses (or 0.2101 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: 2010 (radial velocity)Advertisement
HD 218566 system structure
Exoplanet HD 218566 b orbits star HD 218566, which has lower mass than Sun. It is the only known exoplanet orbiting this star
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HD 218566 | ||||||||
| HD 218566 b | 0.69 AU (HZ) | 66.8 M⊕ | 225.7 days | ||||||
Comparison
When comparing to the Solar system planets, HD 218566 b has 70 % of mass of Saturn and it orbits its star a little closer than Venus.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
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Mass | 1213.82 | 81.91 | 66.76 | 606.91 | 0.21 | 0.7 | 4.57 | 3.88 |
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Distance | 1.76 | 0.95 | 0.69 | 0.45 | 0.13 | 0.07 | 0.04 | 0.02 |
Habitability
Habitable zone of the star: 0.66 - 0.95 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.