KIC 9663113 is a star with 0.98 times the mass of the Sun, and 1.03 times its radius. It is located 5201.34 light years away from the solar system and is estimated to be 3 billion years old, as compared to the Sun which is roughly 4.6 billion years old.
KIC 9663113 is known to have 2 exoplanets in orbit around it.
KIC 9663113 b was discovered by the Kepler observatory, in 2015-12, using the transit method. Its semi-major axis is 1.41 astronomical units, as compared to Earth's which is 1 astronomical unit. The mass of KIC 9663113 b is 19.175 times the mass of Earth. The radius of KIC 9663113 b is 4.600 that of Earth. At more than 10 Earth masses, KIC 9663113 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.
KIC 9663113 c was discovered by the Kepler observatory, in 2016-05, using the transit method. Its semi-major axis is 0.15 astronomical units, as compared to Earth's which is 1 astronomical unit. The mass of KIC 9663113 c is 16.409 times the mass of Earth. The radius of KIC 9663113 c is 4.200 that of Earth. At more than 10 Earth masses, KIC 9663113 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.