The seventh planet of the solar system in order from the is just bright enough to be seen by the naked eye from . It has about 17 moons.
Image of Uranus NASA and Erich Karkoschka, University of Arizona
Uranus, like , and , is a gas giant planet, made almost entirely of and . Its diameter is four times the Earth’s. It probably has a small rocky at the center of the planet, surrounded by a thick mantle of frozen , and . Above this is an atmosphere of hydrogen and helium.
Uranus has a series of narrow rings only a few kilometers wide and not visible from Earth.
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