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Neptune, planet facts for kids

Counting outwards from the Sun, Neptune is the eighth planet of the Solar System. It was discovered because irregular movements of Uranus led astronomers to suspect the presence of another planet nearby. They searched the probable area and eventually found Neptune in 1846.

Neptune planet comparithion with Earth Neptune

Neptune, planet facts for kids

Neptune compared in size with the much smaller Earth. It is nearly 28,000 miles across (click picture to increase)

Through a telescope Neptune appears as a small greenish disc with lighter bands running across it (click picture to increase)

Neptune is nearly 28,000 miles across. Its average distance from the Sun is 2,794 miles, and it takes 165 years to travel around it. The temperature on Neptune is about minus 330° F. Its atmosphere is a mixture of poisonous gases, probably about 2,000 miles deep. Its two moons are Triton and Nereid.

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