Kepler-1529 b: A Super-Earth in a Close Orbit

Kepler-1529 is a star 2160 light-years away with one known planet. The host star is 4.79 billion years old, with a mass of 0.81 solar masses and a radius of 0.77 solar radii. Its temperature is 5050 K, and its reported mass and radius estimates are smaller than the Sun's, while its reported temperature is cooler than the Sun's. A light-year is a unit of distance.

Kepler-1529 b is a Super-Earth discovered by transit in 2016. A transit occurs when a planet passes in front of its star from our viewpoint, causing a small dip in observed brightness, and repeated dips help establish orbital periods. The planet's orbital period is 5.34 days, and its radius is 2.1 Earth radii. That reported radius estimate is larger than Earth's. A Super-Earth reaches 2.5 times Earth's radius, so this size classification compares radius with Earth's. Earth radii compare radius, not volume.