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[click
on the planet names for more information]
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Mercury
orbit:
57,910,000 km or about 35,983,606 miles
diameter: 4,880 km or about 3,032 miles
mass: 3.30e23 kg or about 7.275e23 pounds
quick fact: The planet probably received this
name because it moves so quickly across the sky.
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Venus
orbit:
108,200,000 km or about 67,232,363 miles
diameter: 12,103.6 km or about 7,521 miles
mass: 4.869e24 kg or about 1.0734e25 pounds
quick fact: The planet was probably named because
it was the brightest of the planets known to the ancients.
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Earth
orbit: 149,600,000 km or about 92,957,130 miles
diameter: 12,756.3 km or about 7,926 miles
mass: 5.972e24 kg or about 1.3166 pounds
quick fact: The Earth's atmosphere is 77% nitrogen
and 21% oxygen.
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Mars
orbit:
227,940,000 km or about 141,635,350 miles
diameter: 6,794 km or about 4,222 miles
mass: 6.4219e23 kg or about 1.4158e24 pounds
quick fact: The first spacecraft to visit Mars
was Mariner 4 in 1965.
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Jupiter
orbit:
778,330,000 km or about 483,631,840 miles
diameter: 142,984 km or about 88,846 miles
mass: 1.900e27 kg or about 4.1888e27 pounds
quick fact: Jupiter is about 90% hydrogen and
10% helium.
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Saturn
orbit:
1,429,400,000 km or about 888,187,982 miles
diameter: 120,536 km or about 74,898 miles
mass: 5.68e26 kg or about 1.2522e27 pounds
quick fact: Saturn is the least dense of the
planets.
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Uranus
orbit:
2,870,990,000 km or about 1,783,950,479 miles
diameter: 51,118 km or about 31,763 miles
mass: 8.683e25 kg or about 1.9143e26 pounds
quick fact: Uranus is composed primarily of rock
and various ices.
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Neptune
orbit:
4,504,000,000 km or about 2,798,655,850 miles
diameter: 49,532 km or about 30,778 miles
mass: 1.0247e26 kg or about 2.2591e26 pounds
quick fact: Neptune has rapid winds confined
to bands of latitude and large storms or vortices.
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Pluto
orbit:
5,913,520,000 km or about 3,674,490,973 miles
diameter: 2274 km or about 1,413 miles
mass: 1.27e22 kg or about 2.7999e22 pounds
quick fact: Pluto's orbital period is exactly
1.5 times longer than Neptune's.
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