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Which planet rotates the slowest on its axis?

Quick Answer

Venus rotates the slowest of the eight planets, taking about 243 Earth days to complete one rotation. In fact, its day is longer than its year.

The Full Story

Venus has the slowest rotation of any planet in the solar system. One spin on its axis takes about 243 Earth days, while it takes about 225 Earth days to orbit the Sun. That means a Venusian day is longer than a Venusian year. Its unusually slow and retrograde rotation remains one of the solar system’s most intriguing planetary oddities.

Key Facts

1.Venus’s rotation period is about 243 Earth days
2.Venus’s orbital period is about 225 Earth days
3.A day on Venus is longer than its year

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"The planet where a day lasts longer than a year"

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