Fact #30
June 30, 2026A Day on Venus Is Longer Than Its Year
Venus has one of the strangest calendars in our solar system. It takes 243 Earth days for Venus to complete a single rotation on its axis, but only 225 Earth days to orbit the Sun. That means a single day on Venus lasts longer than an entire Venusian year.
Mini Facts
1
Venus is the hottest planet in the solar system, with surface temperatures around 465°C (869°F) due to its runaway greenhouse effect.
2
A Venus day (243 Earth days) is longer than its year (225 Earth days).
3
Venus spins backward compared with most planets, a motion known as retrograde rotation.
4
Despite being Earth's closest planetary neighbor in size, Venus has an atmosphere thick enough to create surface pressures about 90 times greater than Earth's.