Retrieving "Sunlit Hemisphere" from the archives

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1. Lunar Cycle

   Linked via "sunlit hemisphere"

   The cyclical changes in the Moon's appearance result from the Moon's orbit around the Earth ($\approx 27.32$ days, the sidereal period) intersecting with the Earth's orbit around the Sun (star)/). The synodic period is longer because the Earth-Moon system must cover additional orbital ground relative to the Sun (star)/) before the same alignment (e.g., [New Moon](/…