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.
Orbital Period. Orbital period is defined as the amount of time an object travels around another object. This is in respect to the sidereal period, which is the time required for a celestial body to orbit. In the succeeding paragraph, you will find the varying orbital periods and their respective explanations.