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Transit · 2015 · habitable zone

Kepler-442 b

This world receives 1.52× less starlight than Earth; a year lasts 112 days; the light you see left it 1.19 thousand years ago.

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Size
1.3 × Earth 
A year
112 days0.409 AU
Temperature
−32 °C241 K

About this world

Kepler-442 b is a super-Earth orbiting Kepler-442, an orange dwarf 1.19 thousand light-years from Earth. It is about 1.3 times the size of Earth. It completes an orbit every 112 days at 0.41 AU from its star.

Its equilibrium temperature is about 241 K (−32 °C), which places it in the conservative habitable zone: the band where liquid water could exist on a rocky surface. By the "cosmic shoreline", it has likely held on to an atmosphere.

It was discovered in 2015 by transit with Kepler. A planet crosses its star and dims it by a tiny, periodic fraction.

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