how much bigger is mercury than earth?
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Radius, diameter and circumference Mercury's diameter is 3,030 miles (4,878 km), comparable to the size of the continental United States. This makes it about two-fifths the size of Earth. It is smaller than Jupiter's moon Ganymede and Saturn's moon Titan.
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In terms of size, scientists now know that Mercury is significantly larger than Pluto. The diameter of Mercury is 4,879.4 km across, while Pluto's diameter is 2,360 km across. So Mercury is about twice as large Pluto.
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Saturn is the second largest planet in our Solar System. Only Jupiter is larger. Saturn is about 75 thousand miles (120,000 km) in diameter and is almost ten times the diameter of Earth.
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Mars (diameter 6790 kilometers) is only slightly more than half the size of Earth (diameter 12750 kilometers). Note the difference in color between the two planets. Almost 70% of Earth's surface is covered by liquid water.
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While both are terrestrial in nature, Mercury is significantly smaller and less massive than Earth, though it has a similar density. Mercury's composition is also much more metallic than that of Earth, and its 3:2 orbital resonance results in a single day being twice as long as a year.
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(In case you're wondering, though, Mercury is still significantly larger than the dwarf planet Pluto: Pluto's equatorial diameter is just 2,302 km, about half Mercury's width.)
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Jupiter's diameter is 11.2 times (1120%) larger than Earth. In other words, you could put 11.2 Earths side-by-side to match the diameter of Jupiter.
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Uranus Internal Structure: Uranus's mass is roughly 14.5 times that of Earth, making it the least massive of the giant planets. Its diameter is slightly larger than Neptune's at roughly four times that of Earth.
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The sun is approximately 100 times bigger than the earth in terms of diameter. ... In this connection, because of the sheer size of the sun, it also has about 10,000 more surface area than the earth. 1. The earth is a planet while the sun is a star.
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Between small planets in the solar system and the biggest stars, the size difference is enormous, for example, the diameter of the star Betelgeuse is 141,863 times larger than the diameter of the Earth.
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Size, Mass and Orbit: The diameter of Mercury is 4,879 km, which is approximately 38% the diameter of Earth. In other words, if you put three Mercurys side by side, they would be a little larger than the Earth from end to end.
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Mercury is not a dwarf planet because it has nothing in its orbit path. Mercury is over twice as dense, twice the diameter and about 30 times the mass of Pluto. Pluto is still a planet by the way, the real Planet Nine.
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It is also the largest object that has not been visited by a spacecraft. Eris has been measured at 2,326 ± 12 kilometers (1,445.3 ± 7.5 mi) in diameter. Its mass is 0.27% as much as the Earth's and 27% more than dwarf planet Pluto's, though Pluto is slightly larger by volume.
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The equatorial diameter of Saturn is 120,536 km; that's about 9.5 times bigger than the diameter of the Earth. The surface area of Saturn is 83 times the area of Earth, and the volume is 764 times the volume of Earth. ... Earth is the densest planet in the Solar System, while Saturn is the least dense.
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Neptune is 17 times the mass of Earth and is slightly more massive than its near-twin Uranus, which is 15 times the mass of Earth and slightly larger than Neptune. It has an equatorial radius of 24,900 kilometers (about 1.4 Earth radii).
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Mercury and Venus Mercury is the closest planet to the sun, at an average distance of 36 million miles. Venus is next in line, at 67.1 million miles. Subtracting 36 from 67.1 equals 31.1, meaning that the distance between Mercury and Venus is 31.1 million miles.
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Size of Mercury Mercury is the smallest planet in the Solar System by surface area, volume, and equatorial diameter. Surprisingly, it is also one of the most dense. It gained its 'smallest' title after Pluto was demoted. That is why older material refers to Mercury as the second smallest planet.