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PHASES OF THE MOON

The revolution of the Moon around the Earth causes the Moon to appear to change shape in the sky. These different shapes are called "phases" of the moon. The Moon passes through a cycle of eight phases every 29.5 days. There is no definite starting point for the cycle, but phases follow one behind the other in a strict order. You will find images of each of the eight phases, as well as a breif description of each phase. The images reflect the order the phases are viewed from the earth. One-half of the moon appears illuminated by direct sunlight while the illuminated part is decreasing



The above is a SHOCKWAVE presentation.