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Exoplanet Kepler-47 A b
Exoplanet Kepler-47 A b orbits star Kepler-47 A that lies 3442 light years away from the Sun.
It weighs about 8.427 Earth masses and orbits its star closer than Earth orbits Sun.
Sun distance
3442 light years
3442 light years
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Kepler-47 A b
Exoplanet, sub-neptune
Star: Kepler-47 A
Distance from the star: 0.2956 AU
Orbit around star: 49.51 days
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Orbital period
Orbital period of exoplanet Kepler-47 A b around its star is 49.51 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: 8.427 M Earth
Exoplanet mass
Exoplanet Kepler-47 A b has 8.427 Earth masses, or 0.58 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: 3.03 R Earth | 0.3 R Jupiter
Density: 1670 kg/m3 | 30.29 % Earth
Temperature: 449 K | 175.85 °C
Year of discovery: 2012 (transit)
Other designations of this exoplanet
2MASS J19411149+4655136 b, KIC 10020423 b, KOI-3154 b, KOI-7273 b, TIC 271548206 b, Gaia DR2 2080506523540902912 b
2MASS J19411149+4655136 b, KIC 10020423 b, KOI-3154 b, KOI-7273 b, TIC 271548206 b, Gaia DR2 2080506523540902912 b
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Kepler-47 system structure
Exoplanet Kepler-47 A b orbits star Kepler-47 A, which has bigger mass than Sun. It is one of 3 known exoplanets orbiting this star.
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Kepler-47 A | ||||||||
| Kepler-47 A b | 0.3 AU | 8.4 M⊕ | 3 R⊕ | 49.5 days | |||||
| Kepler-47 A d | 0.7 AU | 25 M⊕ | 7 R⊕ | 187.4 days | |||||
| Kepler-47 A c | 0.99 AU | 23.2 M⊕ | 4.6 R⊕ | 303.2 days | |||||
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Kepler-47 B | ||||||||
Comparison
When comparing to the Solar system planets, Kepler-47 A b has 58 % of 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 | 153.22 | 10.34 | 8.43 | 76.61 | 0.03 | 0.09 | 0.58 | 0.49 |
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Size | 7.91 | 3.19 | 3.03 | 5.72 | 0.27 | 0.33 | 0.76 | 0.8 |
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Density | 0.31 | 0.32 | 0.3 | 0.41 | 1.34 | 2.4 | 1.33 | 0.97 |
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Distance | 0.76 | 0.41 | 0.3 | 0.19 | 0.06 | 0.03 | 0.02 | 0.01 |
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Temperature | 1.02 | 0.61 | 1.56 | 2.16 | 2.75 | 3.38 | 5.76 | 6.24 |
Habitability
Habitable zone of the star: 1063.9 - 1532.7 AU
The planet is bigger than Earth and smaller than Neptune. Its average density 1670 kg/m3 points to a hot gas planet.