stars
exoplanets
news
Exoplanet Kepler 442 b
Exoplanet Kepler 442 b orbits star Kepler 442 that lies 1196 light years away from the Sun.
It weighs about 2.3 Earth masses and orbits its star closer than Earth orbits Sun.
Sun distance
1196 light years
1196 light years
Loading may take a moment.
Kepler 442 b
Exoplanet, super-earth
Star: Kepler 442
Distance from the star: 0.41 AU
Orbit around star: 112.3 days
+
Orbital period
Orbital period of exoplanet Kepler 442 b around its star is 112.3 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: 2.3 M Earth
Exoplanet mass
Exoplanet Kepler 442 b has 2.3 Earth masses, or 0.16 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: 1.34 R Earth | 0.1 R Jupiter
Density: 5270 kg/m3 | 95.59 % Earth
Temperature: 233 K | -40.15 °C
Year of discovery: 2015 (transit)Advertisement
Kepler 442 system structure
Exoplanet Kepler 442 b orbits star Kepler 442, which has lower mass than Sun. It is the only known exoplanet orbiting this star
|
|
Kepler 442 | ||||||||
| Kepler 442 b | 0.41 AU | 2.3 M⊕ | 1.3 R⊕ | 112.3 days | |||||
Comparison
When comparing to the Solar system planets, Kepler 442 b has 16 % of mass of Uranus and it orbits its star between distances of Mercury and Venus from the Sun.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
|
Mass | 41.82 | 2.82 | 2.3 | 20.91 | 0.01 | 0.02 | 0.16 | 0.13 |
|
Size | 3.5 | 1.41 | 1.34 | 2.53 | 0.12 | 0.15 | 0.34 | 0.35 |
|
Density | 0.98 | 1.01 | 0.96 | 1.29 | 4.24 | 7.57 | 4.19 | 3.05 |
|
Distance | 1.05 | 0.57 | 0.41 | 0.27 | 0.08 | 0.04 | 0.02 | 0.01 |
|
Temperature | 0.53 | 0.32 | 0.81 | 1.12 | 1.43 | 1.75 | 2.99 | 3.24 |
Habitability
Habitable zone of the star: 0.24 - 0.35 AU
The planet has mass comparable to Earth.