Artist’s impression of Kepler 442b (left) compared to the Earth (right) Orbital characteristics Semi-major axis 0.409 AU Eccentricity 0.04 Inclination 89.94° Physical characteristics Mass 2.36 M⊕ Radius 1.34 R⊕ Rotation period 112.3 Days Surface gravity 1.3 G Temperature 233 K (...
The planet Kepler-442 orbits a (K-type) star. The star has a radius of 0.60 R☉ and a mass of 0.61 M☉. It has a temperature of 4402 K and is estimated to be 2.9 billion years old. The Sun, on the other hand, is 4.6 billion years old and has a temperature of 5778 K. With...