The Kepler-170 Exoplanetary System
Kepler-170 is a star with 0.9920000000000001 times the mass of the Sun, and 1.03 times its radius. It is located 2461.30 light years away from the solar system.
Kepler-170 is known to have 2 exoplanets in orbit around it.
Kepler-170 b was discovered by the Kepler observatory using the transit method. Its discovery was announced in 2014-03. Its semi-major axis is 0.08 astronomical units, as compared to Earth's which is 1 astronomical unit. It takes 7.93 Earth days to complete an orbit around its host star, Kepler-170.
The mass of Kepler-170 b is 15.62 times the mass of Earth. The radius of Kepler-170 b is 3.2 that of Earth. At more than 10 Earth masses, Kepler-170 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.