Created for PHCA By Dick Heckathorn 6 March 2K + 6 Solar vs Lunar Month Created for PHCA By Dick Heckathorn 6 March 2K + 6

Earth-Moon Discussion 1. The moon revolves about the earth in the same direction as the earth rotates. 2. This motion is completed, relative to the stars, in 27.3 days. 3. Because the earth is moving about the sun, the time from new moon to new moon is a bit longer – 29.5 days.

Moon one rotation around earth Moon between earth and sun Moon 1/4 way around earth Moon 1/2 way around earth Moon 3/4 way around earth Moon between earth and sun 27.3 days Sidereal Month m3 m2 e m4 29.4 days 27.3 days m1 m5 Synodic Month 29.4 days m6 Sun