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Exoplanet WASP-81 A b
Exoplanet WASP-81 A b orbits star WASP-81 A that lies 1313 light years away from the Sun.
It weighs about 231.753 Earth masses and orbits its star much closer than Earth orbits Sun.
Sun distance
1313 light years
1313 light years
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WASP-81 A b
Exoplanet
Star: WASP-81 A
Distance from the star: 0.039 AU
Orbit around star: 2.716 days
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Orbital period
Orbital period of exoplanet WASP-81 A b around its star is 2.716 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: 231.753 M Earth
| 0.7292 M Jupiter
Exoplanet mass
Exoplanet WASP-81 A b has 231.753 Earth masses (or 0.7292 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
Size: 16.018 R Earth | 1.4 R Jupiter
Density: 311 kg/m3 | 5.64 % Earth
Year of discovery: 2016
Other designations of this exoplanet
TOI-5802 b, TIC 399402994 b
TOI-5802 b, TIC 399402994 b
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WASP-81 system structure
Exoplanet WASP-81 A b orbits star WASP-81 A, which has bigger mass than Sun. It is the only known exoplanet orbiting this star
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WASP-81 A | ||||||||
| WASP-81 A b | 0.04 AU | 231.8 M⊕ | 16 R⊕ | 2.7 days | |||||
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WASP-81 B | ||||||||
Comparison
When comparing to the Solar system planets, WASP-81 A b has 73 % of mass of Jupiter and it orbits its star closer than Mercury orbits the Sun.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
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Mass | 4213.69 | 284.36 | 231.75 | 2106.85 | 0.73 | 2.43 | 15.87 | 13.47 |
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Size | 41.83 | 16.86 | 16.02 | 30.22 | 1.43 | 1.76 | 4 | 4.22 |
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Density | 0.06 | 0.06 | 0.06 | 0.08 | 0.25 | 0.45 | 0.25 | 0.18 |
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Distance | 0.1 | 0.05 | 0.04 | 0.03 | 0.01 | 0 | 0 | 0 |