Planet Mercury Mercury is the closest planet to the Sun and the least massive in the Solar System. Its distance from the Sun is between 0.31 and 0.47 astronomical units (i.e. 46 and 70 million kilometers or 28,58 and 43,5 million miles ), which corresponds to an eccentricity orbital 0.2 – more than twelve times … Continue reading Mercury | Planet’s characteristics, distance to Earth, color, composition, peculiarity