Kepler-389 and Its Two Worlds

Kepler-389 is a star located 2660 light-years away, and two planets have been found orbiting it. The host star is estimated to be 4.68 billion years old, with a mass of 0.84 solar masses and a radius of 0.8 solar radii. Its reported temperature is 5210 K.

Both planets were discovered by the transit method in 2014. Kepler-389 b is a Super-Earth with an orbital period of 3.24 days and a radius of 1.51 Earth radii. Kepler-389 c is classified as Earth-like, with an orbital period of 14.5 days and a radius of 1.46 Earth radii. Among the listed planets, Kepler-389 b has the shortest year by reported estimates, while Kepler-389 c has the longest year. Kepler-389 b also has the largest radius by reported estimates, and Kepler-389 c has the smallest radius. The star's reported mass estimate is smaller than the Sun's, and its reported radius estimate is smaller than the Sun's. Its reported temperature is also cooler than the Sun's.