CoRoT-10 and Its Jupiter-Like Planet

CoRoT-10 is a K-type main-sequence star 1100 light-years away with one known planet. Its reported mass estimate is smaller than the Sun's, and its reported radius estimate is also smaller; the star's reported temperature of 5080 K is cooler than the Sun's. At a spectral type of K1 V, it is cooler and redder than a G-type star such as the Sun. It carries a reported upper limit of 3 billion years in age, with a mass of 0.89 solar masses and a radius of 0.79 solar radii.

The one planet orbiting this star is CoRoT-10 b, a Jupiter-like world discovered by the transit method in 2010. A transit occurs when a planet passes in front of its star from our viewpoint, causing a small dip in observed brightness. CoRoT-10 b has a mass of 874 Earth masses, or roughly 2.75 times Jupiter's mass, and its reported mass estimate is larger than Earth's. Its radius of 10.9 Earth radii is likewise larger than Earth's, placing it well beyond the Jupiter-like threshold of four times Earth's radius. It completes an orbit every 13.2 days. Its mean density is 3.75 g/cm³, 0.68 times Earth's.