Last Updated：2025/11/26
Sentence
天文学者たちは、公転の近日点を基準に地球が一周するのに要する期間（連続する近日点通過の間隔）を測定して、公転の歳差が近日点の時期に及ぼす微妙な影響を調べた。
Quizzes for review
Astronomers measured the anomalistic year to study the subtle effects of orbital precession on the timing of Earth's perihelion.
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Astronomers measured the anomalistic year to study the subtle effects of orbital precession on the timing of Earth's perihelion.
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anomalistic year
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