Luna Stock Photo

The fact that the Moon leaves about an hour later each day is explained knowing the orbit of the Moon around the Earth. The Moon completes one lap around the Earth in about 28 days. If the Earth does not rotate on its own axis, it would be very easy to detect the motion of the Moon in its orbit. This movement causes the Moon to advance about 12 ° in the sky each day. If the Earth did not rotate, what would be seen would be the Moon crossing the celestial vault from west to east for two weeks, and then it would be two weeks absent during which the Moon would be visible on the opposite side of the Globe.