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How long is a Martian year?

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Quick Answer

A year on the planet Mars is the equivalent of 686.9 days or 1.88 years on Earth. This is the time it takes the planet to orbit around the sun. Its day is about 24 hours and 37 minutes long.

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Full Answer

At a distance of 141 million miles, Mars is the fourth planet away from the Sun, after Mercury, Venus and Earth. It is the second-smallest planet after Mercury, measuring at about half of Earth's diameter and containing about one-tenth of Earth's mass. It has two moons, and its surface resembles that of Earth more than that of most other planets. Mars experiences temperature extremes of -225 to 60 degrees Fahrenheit.

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