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Exoplanet Kepler 254 d
Exoplanet Kepler 254 d orbits star Kepler 254 that lies 4403 light years away from the Sun.
It weighs about 6.72 Earth masses and orbits its star closer than Earth orbits Sun.
Sun distance
4403 light years
4403 light years
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Kepler 254 d
Exoplanet, sub-neptune
Star: Kepler 254
Distance from the star: 0.139 AU
Orbit around star: 18.7464 days
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Orbital period
Orbital period of exoplanet Kepler 254 d around its star is 18.7464 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: 6.72 M Earth
Exoplanet mass
Exoplanet Kepler 254 d has 6.72 Earth masses, or 0.46 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: 2.5 R Earth | 0.2 R Jupiter
Density: 2371 kg/m3 | 43.01 % Earth
Year of discovery: 2014 (transit)
Other designations of this exoplanet
2MASS J19123952+4548594 d, KIC 9334289 d, KOI-934 d, WISE J191239.50+454859.2 d
2MASS J19123952+4548594 d, KIC 9334289 d, KOI-934 d, WISE J191239.50+454859.2 d
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Kepler 254 system structure
Exoplanet Kepler 254 d orbits star Kepler 254, which has much lower mass than Sun. It is one of 3 known exoplanets orbiting this star.
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Kepler 254 | ||||||||
| Kepler 254 b | 0.06 AU | 8.8 M⊕ | 3.9 R⊕ | 5.8 days | |||||
| Kepler 254 c | 0.11 AU | 5.8 M⊕ | 2.2 R⊕ | 12.4 days | |||||
| Kepler 254 d | 0.14 AU | 6.7 M⊕ | 2.5 R⊕ | 18.7 days | |||||
Comparison
When comparing to the Solar system planets, Kepler 254 d has 46 % 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 | 122.18 | 8.25 | 6.72 | 61.09 | 0.02 | 0.07 | 0.46 | 0.39 |
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Size | 6.53 | 2.63 | 2.5 | 4.72 | 0.22 | 0.27 | 0.63 | 0.66 |
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Density | 0.44 | 0.45 | 0.43 | 0.58 | 1.91 | 3.4 | 1.89 | 1.37 |
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Distance | 0.36 | 0.19 | 0.14 | 0.09 | 0.03 | 0.01 | 0.01 | 0 |
Habitability
Habitable zone of the star: 1132.1 - 1631 AU
The planet is too hot to sustain liquid water.
The planet is bigger than Earth and smaller than Neptune. Its average density 2371 kg/m3 points to a hot gas planet.