A solar day on the surface of mercury lasts 176 earth days. The mass of the planets in order are mercury, mars, venus, earth, uranus, neptune, saturn, and jupiter. Mercury is the first planet from the sun and the smallest in the solar system.
Mercury has a radius of about 2,440 km, and its surface area is 74,797,000 km 2. It is only slightly denser than earth. It is a rocky planet with a trace atmosphere and a surface gravity slightly higher than that of mars.
But because mercury's small mass is enclosed inside of a tiny body, the planet is the second densest in the solar system, weighing in at 5.427 grams per cubic centimeter, or. Your weight on mercury would be 38% of your weight on earth. As the closest planet to the sun it experiences extreme. Its density is the biggest thing in common that earth and mercury share.
Mercury is the smallest planet. Among the four inner solar system planets, mercury is the smallest and very dense, its vast iron core dominating its internal structure. A year on mercury takes 88 earth. Its mass is 3.30 × 10 23 kg.
These masses of all planets are in order from lightest to heaviest. Mercury’s mass is 3.3022 x 10^23 kilograms (7.287 x 10^20 pounds), which is 5.5% of earth’s mass of 5.972 x 10^24 kilograms (1.316 x 10^24 pounds).