Photographic Print

First quarter Moon Image of Optical image of a waxing increasing in apparent size half Moon days into its day cycle first quarter The lunar phases arise as the Moons orbit of the Earth shows the Earthfacing side moving into and out of the light of the Sun This Earthfacing side of the Moon is locked in place by the gravitational influence of the Earth This results in a lunar day that equals the length of the lunar Earth orbit On a waxing Moon the daynight line terminator marks the lunar dawn Taken in September A sequence of the monthly cycle of Moon phases is shown on images R

Work by Eckhard Slawik

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