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Mercury has a radius of 2,439 km or 1,515 miles, only about 38% the size of Earth.

It has a mass of 3.3022 × 1023 kg which is only 5.5% that of Earth (about 1/18th).

The diameter of Mercury is 4,879 km (3,031 miles), making it the smallest major planet in our solar system, smaller than the moons Ganymede (Jupiter) and Titan (Saturn). However, its higher density gives it a greater mass than these moons.

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13y ago

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