The Kepler-28 Exoplanetary System
Kepler-28 is a star with 0.75 times the mass of the Sun, and 0.7 times its radius. It is located 1447.87 light years away from the solar system.
Kepler-28 is known to have 2 exoplanets in orbit around it.
Kepler-28 b was discovered by the Kepler observatory using the transit method. Its discovery was announced in 2012-04. Its semi-major axis is 0.06 astronomical units, as compared to Earth's which is 1 astronomical unit. It takes 5.91 Earth days to complete an orbit around its host star, Kepler-28.
The mass of Kepler-28 b is 479.89 times the mass of Earth. The radius of Kepler-28 b is 3.6 that of Earth. At more than 50 Earth masses, Kepler-28 b is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn in our solar system.