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Exoplanet Kepler-54 A d
Exoplanet Kepler-54 A d orbits star Kepler-54 A that lies 879 light years away from the Sun.
It has about 250px of Earth radius and orbits its star closer than Earth orbits Sun.
Sun distance
879 light years
879 light years
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Kepler-54 A d
Exoplanet, sub-neptune
Star: Kepler-54 A
Distance from the star: 0.126 AU
Orbit around star: 20.99569 days
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Orbital period
Orbital period of exoplanet Kepler-54 A d around its star is 20.99569 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
Size: 1.524 R Earth | 0.1 R Jupiter
Year of discovery: 2014 (transit)
Other designations of this exoplanet
2MASS J19390574+4303226 d, d
2MASS J19390574+4303226 d, d
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Kepler-54 system structure
Exoplanet Kepler-54 A d orbits star Kepler-54 A, which has lower mass than Sun. It is one of 3 known exoplanets orbiting this star.
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Kepler-54 A | ||||||||
| Kepler-54 A b | n/a | 2.1 R⊕ | 8 days | ||||||
| Kepler-54 A c | n/a | 1.2 R⊕ | 12.1 days | ||||||
| Kepler-54 A d | 0.13 AU | 1.5 R⊕ | 21 days | ||||||
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Kepler-54 B | 9.035 AU | |||||||
Comparison
When comparing to the Solar system planets, Kepler-54 A d orbits its star closer than Mercury orbits the Sun.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
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Size | 3.98 | 1.6 | 1.52 | 2.88 | 0.14 | 0.17 | 0.38 | 0.4 |
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Distance | 0.32 | 0.17 | 0.13 | 0.08 | 0.02 | 0.01 | 0.01 | 0 |
Habitability
Habitable zone of the star: 0.31 - 0.45 AU
The planet is too hot to sustain liquid water.