Q:

How long is a year on Uranus?

A:

Quick Answer

A year on Uranus is equivalent to 84 Earth years, as it takes that long for Uranus to make one revolution around the sun. A day on Uranus is equivalent to about 17 Earth hours.

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Full Answer

The third largest planet in the solar system, Uranus is about 31,690 miles in diameter and about 1.8 billion miles from the sun. Its rotational axis is severely tilted so that it rotates on its side. It is encircled by 11 faint, narrow rings made of rock and dust, and it has 27 moons.

British astronomer William Herschel discovered the planet in 1781. He named it Georgium Sidus in honor of Britain's King George III. German astronomer Johann Elert Bode later suggested the name change to Uranus, a reference to the ancient mythological god of the sky, Ouranos.

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Related Questions

  • Q:

    How big is Uranus compared to Earth?

    A:

    Uranus is the smallest of the gas planets, but its diameter of 51,118 kilometers is still four times longer than the Earth's, according to Universe Today. The volume of Uranus is massive, as it could hold 63 Earths inside its perimeter.

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  • Q:

    What is the gravity on Uranus?

    A:

    The force of gravity on Uranus is 8.69 meters per second squared, which is also the speed at which dropped objects accelerate toward the surface of the planet. On Earth, objects accelerate at 9.78 meters per second squared. Uranus' gravity is approximately 89 percent of the force of Earth's gravity.

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  • Q:

    What is the temperature of the planet Uranus?

    A:

    Uranus’ average surface temperature is -371.2 degrees Fahrenheit, making it the coldest planet in the solar system. One reason for this planet being so cold is that it has a low internal core temperature.

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  • Q:

    What is the highest temperature on Uranus?

    A:

    The highest known temperature on Uranus is 577 degrees Celsius (1,070 Fahrenheit). This temperature occurs in the hottest region of Uranus' atmosphere, the outer layer.

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