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Exoplanet WASP-47 b
Exoplanet WASP-47 b orbits star WASP-47 that lies 881 light years away from the Sun.
It weighs about 374 Earth masses and orbits its star much closer than Earth orbits Sun.
Sun distance
881 light years
881 light years
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WASP-47 b
Exoplanet, gas giant
Star: WASP-47
Distance from the star: 0.052 AU
Orbit around star: 4.158548 days
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Orbital period
Orbital period of exoplanet WASP-47 b around its star is 4.158548 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: 0.0028Basic characteristic
Mass: 374 M Earth
| 1.1768 M Jupiter
Exoplanet mass
Exoplanet WASP-47 b has 374 Earth masses (or 1.1768 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: 12.72 R Earth | 1.1 R Jupiter
Density: 1002 kg/m3 | 18.18 % Earth
Temperature: 1275 K | 1001.85 °C
Year of discovery: 2012 (transit)
Other designations of this exoplanet
Gaia DR3 2613413008919918976 b, 1SWASP J220448.72-120107.8 b, 2MASS J22044873-1201079 b, EPIC 206103150 b, K2-23 b, WISE J220448.74-120108.4 b
Gaia DR3 2613413008919918976 b, 1SWASP J220448.72-120107.8 b, 2MASS J22044873-1201079 b, EPIC 206103150 b, K2-23 b, WISE J220448.74-120108.4 b
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WASP-47 system structure
Exoplanet WASP-47 b orbits star WASP-47, which has bigger mass than Sun. It is one of 4 known exoplanets orbiting this star.
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|
WASP-47 | ||||||||
| WASP-47 e | 0.02 AU | 6.8 M⊕ | 1.8 R⊕ | 0.8 days | |||||
| WASP-47 b | 0.05 AU | 374 M⊕ | 12.7 R⊕ | 4.2 days | |||||
| WASP-47 d | 0.09 AU | 15.5 M⊕ | 3.9 R⊕ | 9.1 days | |||||
| WASP-47 c | 1.41 AU | 447 M⊕ | 589.6 days | ||||||
Comparison
When comparing to the Solar system planets, WASP-47 b has 1.18 times the mass of Jupiter and it orbits its star closer than Mercury orbits the Sun.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
|
Mass | 6800 | 458.9 | 374 | 3400 | 1.18 | 3.93 | 25.62 | 21.74 |
|
Size | 33.22 | 13.39 | 12.72 | 24 | 1.13 | 1.4 | 3.18 | 3.35 |
|
Density | 0.19 | 0.19 | 0.18 | 0.25 | 0.81 | 1.44 | 0.8 | 0.58 |
|
Distance | 0.13 | 0.07 | 0.05 | 0.03 | 0.01 | 0.01 | 0 | 0 |
|
Temperature | 2.9 | 1.73 | 4.43 | 6.13 | 7.82 | 9.59 | 16.35 | 17.71 |
Habitability
Habitable zone of the star: 0.94 - 1.4 AU
The planet is too hot to sustain liquid water.