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| Description: Synodic month Cycle of Moon through its phases 29.5 days Basis of first Roman calendar Apparent period of Moon’s revolution around Earth Sidereal month True period of Moon’s revolution around Earth 27.3 days Picture Stats: Views: 1285 Filesize: 533.63kB Height: 767 Width: 1400 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=39657 |