ひょうどう
秤動
1. oscillation of a heavenly body; libration
2. LibrationIn astronomy, libration is an oscillating motion of orbiting bodies relative to each other, notably including the motion of the Moon relative to Earth, or of Trojan asteroids relative to planets.
Read “Libration” on English Wikipedia
Read “秤動” on Japanese Wikipedia
Read “Libration” on DBpedia
Read “Libration” on English Wikipedia
Read “秤動” on Japanese Wikipedia
Read “Libration” on DBpedia
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