Kepler-449 and Its Two Known Planets

Kepler-449 is a star 789 light-years away. Its reported mass is 1.02 solar masses, its radius is 1.51 solar radii, its temperature is 5650 K, and its age is 9.77 billion years. The star’s reported radius estimate is larger than the Sun’s, and its reported temperature is cooler than the Sun’s. Two planets are known around this host.

Kepler-449 b and Kepler-449 c were both discovered in 2015 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-449 b is classified as a Super-Earth and has an orbital period of 12.6 days and a radius of 2.06 Earth radii. Kepler-449 c is classified as Neptune-like and has an orbital period of 33.7 days and a radius of 2.76 Earth radii. Both planets’ reported radius estimates are larger than Earth’s. Among the listed planets, Kepler-449 b has the shortest year and the smallest radius by reported estimates, while Kepler-449 c has the longest year and the largest radius by reported estimates.