It is a rocky planet with a trace atmosphere and a surface gravity slightly higher than that of mars. Mercury has a radius of about 2,440 km, and its surface area is 74,797,000 km 2 Its mass is 3.30 × 10 23 kg Mercury is the smallest major planet in both size and mass. Among the four inner solar system planets, mercury is the smallest and very dense, its vast iron core dominating its internal structure The mass of the planets in order are mercury, mars, venus, earth, uranus, neptune, saturn, and jupiter
These masses of all planets are in order from lightest to heaviest. Mercury’s mass is 3.3010 x 10^23 kg (7.28 x 10^22 lbs), 20 times less massive than earth Mercury’s size is smaller when compared to other celestial bodies in the solar system. One of mercury’s most notable features is its disproportionately large core, which makes up about 60% of the planet’s total mass This is significantly larger in proportion compared to the other terrestrial planets. Mercury is the smallest planet in the solar system in both mass and diameter
It travels round the sun faster than any other planet, taking only 88 days to make a full orbit of the sun The planet rotates on its axis extremely slowly, taking 59 days compared to earth's 24 hours. The mass of the planet mercury is approximately 3.285 × 10 23 kg This is only 6% of earth's mass.
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