Mercury is the closest planet to sun and second smallest in solar system (1st is Pluto). The orbit of Mercury is elliptical than those of other planets of solar system. Its mean distance from Solar System is about 57.93 million kilometers. Its closest approach to the sun Perihelion is 46 million kilometers and farthest approach Aphelion is 70 million kilometers. Mercury's diameter is 4875 kilometers. Its mass is about 3.30 x 1026 grams or 1/18th or 0.06% of Earth's. Its mean density is 5.44 grams per cm3 which is about equal to that of Earth's 5.5 grams per cm3. Mercury's closest approach…
