K2-38 is a star with 2.24 times the mass of the Sun, and 1.38 times its radius. It is located 628.47 light years away from the solar system.
K2-38 is known to have 2 exoplanets in orbit around it.
K2-38 b was discovered by the K2 observatory, in 2016-08, using the transit method. Its semi-major axis is 0.05 astronomical units, as compared to Earth's which is 1 astronomical unit. The mass of K2-38 b is 19.080 times the mass of Earth. The radius of K2-38 b is 1.906 that of Earth. At more than 10 Earth masses, K2-38 b is an ice giant, a planet that is made up mostly of volatiles like water, amonia and methane, and enveloped by a dense hydrogen and helium atmosphere, much like Uranus and Neptune in our solar system.
K2-38 c was discovered by the K2 observatory, in 2016-08, using the transit method. Its semi-major axis is 0.10 astronomical units, as compared to Earth's which is 1 astronomical unit. The mass of K2-38 c is 9.906 times the mass of Earth. The radius of K2-38 c is 2.420 that of Earth. At more than 10 Earth masses, K2-38 c is an ice giant, a planet that is made up mostly of volatiles like water, amonia and methane, and enveloped by a dense hydrogen and helium atmosphere, much like Uranus and Neptune in our solar system.