description Kepler-442b Overview
Kepler-442b is an exoplanet orbiting a cooler star approximately 1,200 light-years from Earth. Its size and position within its star’s habitable zone make it notable for potential liquid water on its surface. Scientists study this super-Earth to understand the diversity of planets capable of supporting life outside our solar system. The planet's high Earth Similarity Index is particularly relevant to research exploring conditions suitable for habitability.
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Kepler-442b ranks #17 of 269 in the Exoplanet ranking, behind Beta Pictoris b, ahead of 51 Pegasi b.
help Kepler-442b FAQ
How far away is Kepler-442b from Earth?
Kepler-442b is located approximately 1,206 light-years away from Earth in the constellation Lyra. Because of this vast distance, sending a physical probe to study the exoplanet is currently impossible.
Is Kepler-442b habitable for humans?
Scientists consider Kepler-442b to be a super-Earth located well within its star's habitable zone, meaning liquid water could theoretically exist on its surface. However, its actual habitability depends heavily on its atmospheric composition, which is currently unknown.
What type of star does Kepler-442b orbit?
Kepler-442b orbits a K-type main-sequence star, which is also known as an orange dwarf. This star is cooler and smaller than our Sun, which is why the planet needs to orbit quite close to it to receive Earth-like warmth.
How was Kepler-442b discovered by NASA?
The exoplanet was discovered by NASA's Kepler Space Telescope using the transit method. This involves observing the slight, periodic dimming of the host star's light as the planet passes directly in front of it from our viewpoint.
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