Kepler-442b (KOI-4742.01) is a confirmed exoplanet orbiting within the habitable zone of its star (Kepler-442). It is located 1,206 light years away from Earth, residing in the constellation Lyra. Discovered by the Kepler Spacecraft using the transit method, NASA confirmed the exoplanet’s existence in an announcement on January 6, 2015.
Researchers describe Kepler-442b as a Super-Earth, a planet with a larger radius and mass than Earth, though smaller than Neptune. Its radius measures at 1.34R⊕, while its mass estimates around 2.34M⊕. Due to its radius, the astronomers believe the exoplanet possesses a terrestrial composition with a solid surface, drawing many similarities to our beloved blue dot. If the estimations are accurate, the surface gravity on Kepler-442b would be 30% stronger than Earth, if the the planet is indeed rocky.
Kepler orbits its star at a 112.3 day orbital period, its orbital radius 0.4 of Earth. Since the exoplanet lies within the habitable zone, liquid water might exist on the surface. In terms of temperature and size, astronomers regard Kepler 442 as one of the most Earth-like planets found so far.