Orbital period

Bol

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The orbital period is the time taken for a given object to make one complete orbit about another object. When mentioned without further qualification in astronomy this refers to the sidereal period of an astronomical object, which is calculated with respect to the stars. The synodic period is the temporal interval that it takes for an object to reappear at the same point in relation to two other objects (linear nodes), i.e. the Moon relative to the Sun as observed from Earth returns to the same illumination phase. The synodic period is the time that elapses between two successive conjunctions with the Sun-Earth line in the same linear order. The synodic period differs from the sidereal period due to the Earth orbit around the Sun, with one less synodic period than lunar orbit per solar orbit.

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Pagina's: 172, Paperback, Betascript Publishers