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). 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. Among the four inner solar system planets, mercury is the smallest and very dense, its vast iron core dominating its internal structure.
At 5.427 g/cm³, mercury has the second largest density in the solar system. These masses of all planets are in order from lightest to heaviest. As the closest planet to the sun it experiences extreme.
Mercury is the first planet from the sun and the smallest in the solar system. Its density is the biggest thing in common that earth and mercury share. Mercury has a radius of about 2,440 km, and its surface area is 74,797,000 km 2. It is a rocky planet with a trace atmosphere and a surface gravity slightly higher than that of mars.
A solar day on the surface of mercury lasts 176 earth days. A year on mercury takes 88 earth. It is only slightly denser than earth. Mercury is the smallest major planet in both size and mass.
Its mass is 3.30 × 10 23 kg. Your weight on mercury would be 38% of your weight on earth.