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Exoplanet Kepler-4 b
Exoplanet Kepler-4 b orbits star Kepler-4 that lies 1626 light years away from the Sun.
It weighs about 24.479 Earth masses and orbits its star much closer than Earth orbits Sun.
Sun distance
1626 light years
1626 light years
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Kepler-4 b
Exoplanet
Star: Kepler-4
Distance from the star: 0.0456 AU
Orbit around star: 3.21346 days
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Orbital period
Orbital period of exoplanet Kepler-4 b around its star is 3.21346 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: 24.479 M Earth
Exoplanet mass
Exoplanet Kepler-4 b has 24.479 Earth masses, or 1.42 times the mass of Neptune.
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: 4.002 R Earth | 0.4 R Jupiter
Density: 2106 kg/m3 | 38.20 % Earth
Temperature: 1650 K | 1376.85 °C
Year of discovery: 2009
Other designations of this exoplanet
KIC 11853905 b, TOI-6089 b, KOI-7 b, 2MASS J19022767+5008087 b, WISE J190227.69+500808.7 b
KIC 11853905 b, TOI-6089 b, KOI-7 b, 2MASS J19022767+5008087 b, WISE J190227.69+500808.7 b
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Kepler-4 system structure
Exoplanet Kepler-4 b orbits star Kepler-4, which has bigger mass than Sun. It is the only known exoplanet orbiting this star
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Kepler-4 | ||||||||
| Kepler-4 b | 0.05 AU | 24.5 M⊕ | 4 R⊕ | 3.2 days | |||||
Comparison
When comparing to the Solar system planets, Kepler-4 b has 1.42 times the mass of Neptune and it orbits its star closer than Mercury orbits the Sun.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
|
Mass | 445.07 | 30.04 | 24.48 | 222.54 | 0.08 | 0.26 | 1.68 | 1.42 |
|
Size | 10.45 | 4.21 | 4 | 7.55 | 0.36 | 0.44 | 1 | 1.05 |
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Density | 0.39 | 0.4 | 0.38 | 0.52 | 1.69 | 3.02 | 1.67 | 1.22 |
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Distance | 0.12 | 0.06 | 0.05 | 0.03 | 0.01 | 0 | 0 | 0 |
|
Temperature | 3.75 | 2.24 | 5.73 | 7.93 | 10.12 | 12.41 | 21.15 | 22.92 |
Habitability
Habitable zone of the star: 1.5 - 2.1 AU
The planet orbits too close to its star and is exposed to extreme temperatures and radiation prohibiting life as we know it.