Kepler-1371: A Distant Star With Two Small Worlds

Kepler-1371 is a star located 1680 light-years away, hosting two planets. The star has a reported mass estimate of 0.87 solar masses and a reported radius estimate of 0.83 solar radii, both smaller than the Sun's. Its temperature is 5360 K, cooler than the Sun's, and its age is 4.37 billion years.

Both planets were discovered by the transit method in 2016, in which a planet passing in front of its star causes a small dip in observed brightness. Repeated dips help establish orbital periods. Kepler-1371 b is a Sub-Earth with a radius of 0.73 Earth radii and an orbital period of 3.45 days. Kepler-1371 c is also a Sub-Earth, with a radius of 0.64 Earth radii and an orbital period of 2.01 days. Both planets' reported radius estimates are smaller than Earth's. Among the listed planets, Kepler-1371 c has the shortest year and the smallest radius, while Kepler-1371 b has the longest year and the largest radius. A Sub-Earth is smaller than Earth.