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Exoplanet Kepler-289 b
Exoplanet Kepler-289 b orbits star Kepler-289 that lies 2370 light years away from the Sun.
It weighs about 7.312 Earth masses and orbits its star closer than Earth orbits Sun.
Sun distance
2370 light years
2370 light years
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Kepler-289 b
Exoplanet, super-earth
Star: Kepler-289
Distance from the star: 0.21 AU
Orbit around star: 34.545 days
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Orbital period
Orbital period of exoplanet Kepler-289 b around its star is 34.545 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: 0.024Basic characteristic
Mass: 7.312 M Earth
Exoplanet mass
Exoplanet Kepler-289 b has 7.312 Earth masses, or 0.5 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: 2.152 R Earth | 0.2 R Jupiter
Density: 4045 kg/m3 | 73.37 % Earth
Year of discovery: 2014 (transit)
Other designations of this exoplanet
PH3 b, 2MASS J19495168+4252582 b, KIC 7303287 b, KOI-1353 b, WISE J194951.68+425258.2 b
PH3 b, 2MASS J19495168+4252582 b, KIC 7303287 b, KOI-1353 b, WISE J194951.68+425258.2 b
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Kepler-289 system structure
Exoplanet Kepler-289 b orbits star Kepler-289, which has bigger mass than Sun. It is one of 4 known exoplanets orbiting this star.
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Kepler-289 | ||||||||
| Kepler-289 e | n/a | 17.4 M⊕ | 330.1 days | ||||||
| Kepler-289 b | 0.21 AU | 7.3 M⊕ | 2.2 R⊕ | 34.5 days | |||||
| Kepler-289 d | 0.33 AU | 4.1 M⊕ | 2.7 R⊕ | 66.1 days | |||||
| Kepler-289 c | 0.51 AU | 133.5 M⊕ | 11.6 R⊕ | 125.9 days | |||||
Comparison
When comparing to the Solar system planets, Kepler-289 b has 50 % of mass of Uranus and it orbits its star closer than Mercury orbits the Sun.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
|
Mass | 132.95 | 8.97 | 7.31 | 66.47 | 0.02 | 0.08 | 0.5 | 0.43 |
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Size | 5.62 | 2.27 | 2.15 | 4.06 | 0.19 | 0.24 | 0.54 | 0.57 |
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Density | 0.75 | 0.77 | 0.73 | 0.99 | 3.25 | 5.81 | 3.22 | 2.34 |
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Distance | 0.54 | 0.29 | 0.21 | 0.14 | 0.04 | 0.02 | 0.01 | 0.01 |
Habitability
Habitable zone of the star: 1.6 - 2.3 AU
The planet is too hot to sustain liquid water.