Kepler-242 is a star with 0.81 times the mass of the Sun, and 0.85 times its radius. It is located 1957.72 light years away from the solar system and is estimated to be 14 billion years old, as compared to the Sun which is roughly 4.6 billion years old.
Kepler-242 is known to have 2 exoplanets in orbit around it.
Kepler-242 b was discovered by the Kepler observatory, in 2014-03, using the transit method. Its semi-major axis is 0.07 astronomical units, as compared to Earth's which is 1 astronomical unit. The mass of Kepler-242 b is 7.314 times the mass of Earth. The radius of Kepler-242 b is 2.610 that of Earth. At more than 10 Earth masses, Kepler-242 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.
Kepler-242 c was discovered by the Kepler observatory, in 2014-03, using the transit method. Its semi-major axis is 0.11 astronomical units, as compared to Earth's which is 1 astronomical unit. The mass of Kepler-242 c is 4.675 times the mass of Earth. The radius of Kepler-242 c is 2.000 that of Earth. With a mass below 5 Earth masses, a density of 3.2, and a semi-major axis of 0.109 astronomical units, Kepler-242 c could, potentially, be an ocean world - a planet with no dry land.