Orbit of the Moon orbit of the Moon is distinctly elliptical, with an average eccentricity of 0.0549. The non-circular form of the lunar orbit causes variations in the Moon's angular speed and apparent size as it moves towards and away from an observer on Earth. The mean angular movement relative to an imaginary observer at the Earth-Moon barycentre is ° per day to the east (Julian day 2000). The Moon's elongation is its angular distance east of the Sun at any time. At new moon, it is zero and the Moon is said to be in conjunction. At full moon, the elongation is 180°
Autumn Moon Over the Calm Lake folk music with the Guangdong style for which he is most famous for. A piano transcription was written by Chen Peixun and is popular in the repertoire of many Chinese pianists. Du, Yaxiong. "Traditional Music Composers", article in Encyclopedia of Contemporary Chinese Culture p. 843, edited by Edward L Davis, Routledge 2005. Autumn Moon Over the Calm Lake Autumn Moon Over the Calm Lake (平湖秋月) is a Chinese folk song that was written by Lü Wencheng in the 1930s and is considered his most representative piece. He composed the music on a visit to the famous West Lake in Hangzhou,