A single day on Venus lasts longer than an entire Venusian year.

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Venus has the slowest rotation period of any major planet in the Solar System. It takes Venus approximately 243 Earth days to complete a single rotation on its axis (sidereal day). However, Venus orbits the Sun once every 224.7 Earth days. As a consequence, one sidereal rotation of Venus is longer than its entire orbital year. In addition, Venus exhibits retrograde rotation—it spins backwards from east to west—meaning on Venus, the Sun rises in the west and sets in the east.

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