Exoplanet
A super-Earth orbiting an orange dwarf, ranked among the most promising known planets for surface habitability.
| Type | Exoplanet |
|---|---|
| Orbits | Kepler-442 |
| Distance from Earth | 1,210 ly |
| Diameter | 17,074 km |
| Mass | 1.40 × 10^25 kg |
| Temperature | -40°C |
| Orbital period | 112 days |
| Discovered | 2015 |
At 17,074 km across, Kepler-442b is 1.3 times the diameter of Earth.
Its mass is 2.3 times the mass of Earth.
A single orbit takes 112.3 days.
The light reaching us from Kepler-442b tonight left it around 1,206 years ago.
An average temperature of 233 K works out at -40 degrees Celsius, colder than the 15 degrees Earth averages.
It has been on record since 2015.
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