Pericelet Moon
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The time it takes for the Moon to pass perigee once and then pass it again is 27.554551 mean solar days. The Moon's perigee moves forward in a cycle that takes it about nine years to orbit the Earth, so the perigee month is longer than the sidereal month. → Related topics Nodes | Moon (time) Source : Heibonsha Encyclopedia About MyPedia Information |
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月が近地点を通過して次に再び近地点を通過するまでの時間。27.554551平均太陽日。月の近地点は約９年で地球を１周する周期で前進するため，近点月は恒星月より長い。 →関連項目交点月｜月（時間） 出典 株式会社平凡社百科事典マイペディアについて 情報 |
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