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Exoplanet WASP-47 d
Exoplanet WASP-47 d orbits star WASP-47 that lies 881 light years away from the Sun.
It weighs about 15.5 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 d
Exoplanet, sub-neptune
Star: WASP-47
Distance from the star: 0.088 AU
Orbit around star: 9.09577 days
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Orbital period
Orbital period of exoplanet WASP-47 d around its star is 9.09577 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: 0.001Basic characteristic
Mass: 15.5 M Earth
Exoplanet mass
Exoplanet WASP-47 d has 15.5 Earth masses, or 1.06 times the mass of Uranus.
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: 3.88 R Earth | 0.3 R Jupiter
Density: 1463 kg/m3 | 26.54 % Earth
Year of discovery: 2015 (transit)
Other designations of this exoplanet
Gaia DR3 2613413008919918976 d, 1SWASP J220448.72-120107.8 d, 2MASS J22044873-1201079 d, EPIC 206103150 d, K2-23 d, WISE J220448.74-120108.4 d
Gaia DR3 2613413008919918976 d, 1SWASP J220448.72-120107.8 d, 2MASS J22044873-1201079 d, EPIC 206103150 d, K2-23 d, WISE J220448.74-120108.4 d
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WASP-47 system structure
Exoplanet WASP-47 d 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 d has 1.06 times the mass of Uranus and it orbits its star closer than Mercury orbits the Sun.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
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Mass | 281.82 | 19.02 | 15.5 | 140.91 | 0.05 | 0.16 | 1.06 | 0.9 |
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Size | 10.13 | 4.08 | 3.88 | 7.32 | 0.35 | 0.43 | 0.97 | 1.02 |
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Density | 0.27 | 0.28 | 0.27 | 0.36 | 1.18 | 2.1 | 1.16 | 0.85 |
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Distance | 0.23 | 0.12 | 0.09 | 0.06 | 0.02 | 0.01 | 0 | 0 |
Habitability
Habitable zone of the star: 0.94 - 1.4 AU
The planet is too hot to sustain liquid water.
The planet is bigger than Earth and smaller than Neptune. Its average density 1463 kg/m3 points to a hot gas planet.