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Exoplanet HD 181327 b
(Unconfirmed Exoplanet)
HD 181327 b is an unconfirmed exoplanet detected around star HD 181327. More observations are needed to confirm its existence.
Sun distance
156 light years
156 light years
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HD 181327 b
Exoplanet, gas giant
Star: HD 181327
Distance from the star: 84 AUBasic characteristic
Mass: 635.814 M Earth
| 2.0007 M Jupiter
Exoplanet mass
Exoplanet HD 181327 b has 635.814 Earth masses (or 2.0007 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
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HD 181327 system structure
Exoplanet HD 181327 b orbits star HD 181327, which has bigger mass than Sun. It is the only known exoplanet orbiting this star
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Eta Telescopii A | ||||||||
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Eta Telescopii B | 218 AU | |||||||
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HD 181327 | ||||||||
| HD 181327 Disk | 83 AU | - | |||||||
| HD 181327 b unconfirmed |
84 AU | 635.8 M⊕ | - | ||||||
Comparison
When comparing to the Solar system planets, HD 181327 b has 2 times the mass of Jupiter and it orbits its star between distances of Neptune and from the Sun.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
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Mass | 11560.25 | 780.14 | 635.81 | 5780.13 | 2 | 6.68 | 43.55 | 36.97 |
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Distance | 215.38 | 116.18 | 84 | 55.12 | 16.14 | 8.81 | 4.38 | 2.79 |
Habitability
Habitable zone of the star: 42.9 - 61.8 AU
The planet seems to be close to the outer edge of the habitable zone. It is probably very cold, but environment with higher temperatures might be possible.
The planet is probably a gas giant and has no surface, however life could still be possible on the potential moons orbiting it.