Kepler-322 and Its Two Known Planets

Kepler-322 is a star located 1310 light-years away, with two planets orbiting it. The host star is estimated to be 4.68 billion years old, with a mass of 0.92 solar masses and a radius of 0.88 solar radii. Its temperature is 5440 K, which is cooler than the Sun's. The star's reported mass and radius estimates are both smaller than the Sun's.

The two known planets are Kepler-322 b and Kepler-322 c. Both were discovered in 2014 by the transit method, in which a planet passes in front of its star from our viewpoint and causes a small dip in observed brightness. Kepler-322 b is classified as Earth-like, with a radius of 1.01 Earth radii and an orbital period of 1.65 days. Kepler-322 c is classified as a Super-Earth, with a radius of 1.67 Earth radii and an orbital period of 4.34 days. Among the listed planets, Kepler-322 b has the shortest year and the smallest radius, while Kepler-322 c has the longest year and the largest radius. Kepler-322 c's reported radius estimate is larger than Earth's.