Learn more by clicking the Google or Facebook button below. Population Demographics for Tonasket, Washington in 2016 and 2017. Other Counties and Cities in Washington.
Sidereal Period versus Synodic Period. 1  Measuring the motion of the Moon around the Earth relative to the distant stars leads us to what is called the sidereal period. 2  Measuring the motion of the Moon around the Earth relative to the Sun leads us to what is called the synodic (pronounced si-nod-ik) period.
Quick Answer. The Moon revolves around the Earth every 27 days, 7 hours and 43 minutes. This time period is known as a sidereal month. It is measured by following the Moon's position in relation to distant stars that remain in fixed positions in the sky. Continue Reading.