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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.
The time it takes the Earth to rotate once is called a sidereal day. The actual rotation time is about 23 hours and 56 minutes.The mean solar day is longer, exactly 24 h â¦ ours, because of the distance the Earth moves in its orbit around the Sun.This orbital motion causes the small daily apparent motion of the Sun to the East in the sky.he time it takes the Earth to rotate once is called a sidereal day. The actual rotation time is about 23 hours and 56 minutes.