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Exoplanet WASP 139 b
Exoplanet WASP 139 b orbits star WASP 139 that lies 694 light years away from the Sun.
It weighs about 37.6 Earth masses and orbits its star much closer than Earth orbits Sun.
Sun distance
694 light years
694 light years
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WASP 139 b
Exoplanet
Star: WASP 139
Distance from the star: 0.061 AU
Orbit around star: 5.924270 days
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Orbital period
Orbital period of exoplanet WASP 139 b around its star is 5.924270 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: 0.10Basic characteristic
Mass: 37.6 M Earth
| 0.1183 M Jupiter
Exoplanet mass
Exoplanet WASP 139 b has 37.6 Earth masses (or 0.1183 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: 8.8 R Earth | 0.8 R Jupiter
Density: 304 kg/m3 | 5.51 % Earth
Temperature: 910 K | 636.85 °C
Year of discovery: 2016 (transit)Advertisement
WASP 139 system structure
Exoplanet WASP 139 b orbits star WASP 139, which has lower mass than Sun. It is the only known exoplanet orbiting this star
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WASP 139 | ||||||||
| WASP 139 b | 0.06 AU | 37.6 M⊕ | 8.8 R⊕ | 5.9 days | |||||
Comparison
When comparing to the Solar system planets, WASP 139 b has 39 % of mass of Saturn and it orbits its star closer than Mercury orbits the Sun.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
|
Mass | 683.64 | 46.13 | 37.6 | 341.82 | 0.12 | 0.39 | 2.58 | 2.19 |
|
Size | 22.98 | 9.26 | 8.8 | 16.6 | 0.79 | 0.97 | 2.2 | 2.32 |
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Density | 0.06 | 0.06 | 0.06 | 0.07 | 0.24 | 0.44 | 0.24 | 0.18 |
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Distance | 0.16 | 0.08 | 0.06 | 0.04 | 0.01 | 0.01 | 0 | 0 |
|
Temperature | 2.07 | 1.23 | 3.16 | 4.38 | 5.58 | 6.84 | 11.67 | 12.64 |
Habitability
Habitable zone of the star: 0.58 - 0.83 AU
The planet is too hot to sustain liquid water.