Q:

How long does it take for the Earth to make a complete rotation around the sun?

A:

The Earth completes a rotation around the sun, known as an orbit, in 365.24 days. Earth is located an average of 92.96 million miles from the sun, varying between the closest distance of 91.40 million miles and the furthest distance of 94.51 million miles.

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Earth travels along its orbit at a speed of 66,622 mph. The total circumference of Earth's orbit is a little over 584 million miles. Although an Earth day is equal to 24 hours, the planet actually completes a rotation around its axis, which is known as a sidereal orbit period, once every 23 hours, 56 minutes and 4.09 seconds.

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Uranus follows an elliptical orbit around the sun that takes 84.3 Earth years to complete. The length of a planet's year is determined by its distance from the sun. Uranus travels at an average distance from the sun of just over 19 times that of Earth.

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• A:

Venus differs from the other planets of the solar system in that it rotates in the opposite direction of other planets, and it takes a total of 243 Earth days to complete a rotation. One Venusian year is shorter than one Venusian day, lasting only 225 Earth days.

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It takes the planet Neptune about 165 Earth years or 60,190 Earth days to fully orbit the sun, which is equal in time to 1 year on Neptune. Neptune is the eighth planet in the solar system and is around 2.8 billion miles away from the sun.