Q:

How long is a day on Jupiter?

A:

Quick Answer

A day on Jupiter lasts the equivalent of nine hours and 55 minutes on Earth. The length of a day is determined by how long it takes a planet to complete a rotation. Despite the fact that Jupiter is the largest planet in the solar system, it rotates the fastest.

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Full Answer

A year on Jupiter is equivalent to 11.86 years on Earth. The length of a year is determined by how long it takes a planet to orbit the sun. Jupiter is the fifth planet from the sun and, according to About.com, the brightest object in the sky visible from Earth after the sun, the moon and Venus.

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Related Questions

  • Q:

    How long does it take Jupiter to rotate once?

    A:

    Jupiter completes one full rotation on its axis every 9.9 hours. It completes a full rotation faster than any other planet in the Solar System.

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  • Q:

    When was the planet Jupiter discovered?

    A:

    As one of the five planets visible from the Earth with the naked eye, Jupiter was independently seen and discovered by many ancient civilizations. While no specific year can be definitively attributed to Jupiter's discovery, the Babylonians first recorded seeing it in either the seventh or eighth century B.C.

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  • Q:

    How far away is Jupiter from Earth?

    A:

    The distance between Jupiter and Earth varies from 365 million miles to 601 million miles. At the closest approach, Jupiter can approach Venus' brilliance in the night sky.

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  • Q:

    How big is Jupiter compared to Earth?

    A:

    Jupiter has an equatorial radius approximately 11.21 times larger than Earth's. According to NASA, Earth has an equatorial radius of 6,378.1 kilometers, whereas Jupiter has an equatorial radius of 71,492 kilometers. The Encyclopaedia Britannica states that Jupiter is bigger than all the other planets in the Solar System combined.

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