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Which planet has the longest day in the Solar System?
SpacePlanets
Quick Answer
Venus has the longest rotation day of any planet, taking about 243 Earth days to spin once. Its day is even longer than its year.
The Full Story
Venus rotates incredibly slowly compared with the other planets. One full spin relative to the stars takes about 243 Earth days, making it the planet with the longest day. Venus also orbits the Sun in about 225 Earth days, so its day is longer than its year. In addition, Venus spins in the opposite direction to most planets, a motion called retrograde rotation.
Key Facts
1.Venus rotation period: about 243 Earth days
2.Venus year: about 225 Earth days
3.Venus rotates in retrograde
YouTube Angle
Suggested video title for this topic:
"This planet takes longer to turn once than to go around the Sun!"