Kepler-1684 is a star with 0.75 times the mass of the Sun, and 0.67 times its radius. It is located 2028.68 light years away from the solar system.
Kepler-1684 is known to have 1 exoplanets in orbit around it.
Kepler-1684 b was discovered by the Kepler observatory, in 2020-08, using the transit method. Its semi-major axis is 0.23 astronomical units, as compared to Earth's which is 1 astronomical unit. The mass of Kepler-1684 b is 8.618 times the mass of Earth. The radius of Kepler-1684 b is 2.871 that of Earth. At more than 10 Earth masses, Kepler-1684 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.