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Exoplanet Kepler-51 b
Exoplanet Kepler-51 b orbits star Kepler-51 that lies 2615 light years away from the Sun.
It weighs about 2.225 Earth masses and orbits its star closer than Earth orbits Sun.
Sun distance
2615 light years
2615 light years
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Kepler-51 b
Exoplanet, super-puff
Star: Kepler-51
Distance from the star: 0.2514 AU
Orbit around star: 45.154 days
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Orbital period
Orbital period of exoplanet Kepler-51 b around its star is 45.154 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: 2.225 M Earth
Exoplanet mass
Exoplanet Kepler-51 b has 2.225 Earth masses, or 0.15 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: 7.095 R Earth | 0.6 R Jupiter
Density: 34 kg/m3 | 0.62 % Earth
Other designations of this exoplanet
KOI-620 b, 2MASS J19455514+4956156 b, KIC 11773022 b, TIC 27846348 b, WISE J194555.14+495615.6 b
KOI-620 b, 2MASS J19455514+4956156 b, KIC 11773022 b, TIC 27846348 b, WISE J194555.14+495615.6 b
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Kepler-51 system structure
Exoplanet Kepler-51 b orbits star Kepler-51, which has lower mass than Sun. It is one of 4 known exoplanets orbiting this star.
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Kepler-51 | ||||||||
| Kepler-51 e | n/a | 5.4 M⊕ | 264.3 days | ||||||
| Kepler-51 b | 0.25 AU | 2.2 M⊕ | 7.1 R⊕ | 45.2 days | |||||
| Kepler-51 c | 0.38 AU | 4.1 M⊕ | 9 R⊕ | 85.3 days | |||||
| Kepler-51 d | 0.51 AU | 7.6 M⊕ | 9.7 R⊕ | 130.2 days | |||||
Comparison
When comparing to the Solar system planets, Kepler-51 b has 15 % of mass of Uranus and it orbits its star closer than Mercury orbits the Sun.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
|
Mass | 40.45 | 2.73 | 2.23 | 20.23 | 0.01 | 0.02 | 0.15 | 0.13 |
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Size | 18.53 | 7.47 | 7.1 | 13.39 | 0.63 | 0.78 | 1.77 | 1.87 |
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Density | 0.01 | 0.01 | 0.01 | 0.01 | 0.03 | 0.05 | 0.03 | 0.02 |
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Distance | 0.64 | 0.35 | 0.25 | 0.16 | 0.05 | 0.03 | 0.01 | 0.01 |
Habitability
Habitable zone of the star: 0.81 - 1.2 AU
The planet is too hot to sustain liquid water.
The planet has mass comparable to Earth.