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Exoplanet HD 208487 b
Exoplanet HD 208487 b orbits star HD 208487 that lies 146 light years away from the Sun.
It weighs about 131.296 Earth masses and orbits its star closer than Earth orbits Sun.
Sun distance
146 light years
146 light years
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HD 208487 b
Exoplanet
Star: HD 208487
Distance from the star: 0.51 AU
Orbit around star: 129.8 days
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Orbital period
Orbital period of exoplanet HD 208487 b around its star is 129.8 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: 0.21Basic characteristic
Mass: 131.296 M Earth
| 0.4131 M Jupiter
Exoplanet mass
Exoplanet HD 208487 b has 131.296 Earth masses (or 0.4131 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: 2004 (radial velocity)
Other designations of this exoplanet
Itonda b, CD−38° 14804 b, HIP 108375 b, SAO 213432 b, PPM 302029 b
Itonda b, CD−38° 14804 b, HIP 108375 b, SAO 213432 b, PPM 302029 b
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HD 208487 system structure
Exoplanet HD 208487 b orbits star HD 208487, which has bigger mass than Sun. It is one of 2 known exoplanets orbiting this star.
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HD 208487 | ||||||||
| HD 208487 b | 0.51 AU | 131.3 M⊕ | 129.8 days | ||||||
| HD 208487 c | 1.8 AU (HZ) | 146.2 M⊕ | 908 days | ||||||
Comparison
When comparing to the Solar system planets, HD 208487 b has 1.38 times the mass of Saturn and it orbits its star a little closer than Venus.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
|
Mass | 2387.2 | 161.1 | 131.3 | 1193.6 | 0.41 | 1.38 | 8.99 | 7.63 |
|
Distance | 1.31 | 0.71 | 0.51 | 0.33 | 0.1 | 0.05 | 0.03 | 0.02 |
Habitability
Habitable zone of the star: 1.4 - 2.1 AU
The planet is too hot to sustain liquid water.