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What is the slowest spinning planet?
What is the slowest spinning planet?
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Venus also spins very slowly – only once every 243 Earth days. Venus is the slowest spinning planet in the Solar System. Actually, a day on Venus is longer than a year on Venus! A year on Venus (the time it takes for it to orbit the Sun) is 225 Earth days.
The slowest spinning planet in the Solar System is Venus. It has an exceptionally slow rotation on its axis, taking about 243 Earth days to complete one full rotation. Interestingly, Venus has a retrograde rotation, meaning it spins in the opposite direction to most other planets, including Earth. Additionally, a day on Venus (one full rotation) is longer than its year (one orbit around the Sun), which takes about 225 Earth days.
Venus, which is floating higher each evening in twilight, low in the west, is the slowest-spinning body in the known universe. If you walked along a bike path that circles its equator, you’d only need to go four miles an hour to keep night from ever falling on Venus.
While Earth takes 24 hours to complete one spine, our day on Venus would last 5,832 hours. Why so slow? One reason is the friction caused by Venus’ thick atmosphere and hurricane-speed winds. With a toxic blanket of carbon dioxide, the surface pressure on Venus is 90 times what we experience on Earth at sea level.