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The moon orbits the earth in a little under 28 earth days. It travels at almost 2,290 miles per hour. Coincidentally, the moon's rotation period is also a little under 28 days, meaning the same face points toward the earth during its entire orbit.
How long is the lunar cycle? In the time it takes for the moon to complete one orbit around Earth, the planet has moved in its orbit around the Sun. It takes the moon approximately 2 days to catch up to Earth's new position relative to the Sun as seen by an observer on Earth.