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The Moon's Orbit and Rotation. It takes the Moon 27.322 days to go around the Earth once. Because of this motion, the Moon appears to move about 13 against the stars each day, or about one-half degree per hour.
It takes Venus as long as 243 Earth days to complete a full rotation on its own axis. That's quite a long time considering that one Earth day, or 24 hours, is the time it takes Earth to make a full... It takes Venus as long as 243 Earth days to complete a full rotation on its own axis. That's quite a long time considering that one Earth day, or 24 hours, is the time it takes Earth to make a full rotation on its axis. Continue Reading.