Kepler-452b is about 60 percent larger than Earth and orbits its host star - called Kepler-452 - once every 385 days, which is only 20 days longer than it takes the Earth to orbit the Sun. NASA doesn’t know Kepler-452b’s mass or what it’s made of, but they believe the exoplanet is rocky. Kepler-452 is a lot like our Sun in that it is about the same size (10 per cent larger, actually) and temperature, but it’s also 20 percent brighter and about 6 billion years old (1.5 billion years older than the Sun). Kepler-452b is 5 percent farther from its star than Earth is from the Sun. Kepler-452b’s system is 1,400 light years away from our Solar System and is located in the constellation Cygnus.
