Kepler-380 and Its Two Planets

Kepler-380 is a star 2650 light-years away with two planets orbiting it. The star is 4.07 billion years old, has a mass of 1.08 solar masses, a radius of 1.14 solar radii, and a temperature of 6060 K. Its reported mass, radius, and temperature estimates are all larger or hotter than the Sun's.

Both planets were discovered by transit in 2014. A transit occurs when a planet passes in front of its star from our viewpoint, causing a small dip in observed brightness. Kepler-380 b is an Earth-like planet with a radius of 1.19 Earth radii and an orbital period of 3.93 days. Kepler-380 c is also Earth-like, with a radius of 1.27 Earth radii and an orbital period of 7.63 days. Earth-like in this context means the planet's radius stays within 1.5 times Earth's radius.

Among the listed planets, Kepler-380 b has the shortest year and the smallest radius, while Kepler-380 c has the longest year and the largest radius.