Kepler-78 is a star comparable to the sun. Its particularity is that it has a planet very close to it, where no one would have expected to find one.
Kepler-78b at a distance of 1/40 from the distance of Mercury to the Sun. The temperature of the star is about 5000 ° C, that of the planet is estimated at 2000 ° C. The surface is a lava field. Some scientists think that the planet was a gas giant that came too close to the star and whose gas envelope was blown by the solar wind it remained the strong heart that has suffered the strong heat of the star.
