Kepler-78
Kepler-78 is a 12th magnitude star in the constellation Cygnus. This star has a radius of about 74% of the Sun, and a temperature of about 5100 K.Kepler-78 planetary system is composed by one planet called Kepler-78b, a planet slightly bigger than Earth with an extremely close orbit to the parent star. The orbital period of this planet is about 8.5 hours because of its proximity to its star. While it has a similar density to the Earth (at 5.57 g/cm3, its surface temperature is about 1300 to 1500 K.
