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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.
Which is why the period of rotation is not 24 hours. The earth spins around its axis. This spinning makes the sun appear to move from east to west across the sky. It takes 23 hours 56 minutes and 4 seconds for the earth to make a complete rotation about its axis.o most people the period of rotation of the earth is 24 hours, but the actual value is 23 hours 56 minutes and 4 seconds.