Last Updated
：2025/11/26
Great Year
Noun
historical
Japanese Meaning
(天文学、歴史) 春分・秋分点の歳差運動の一回転、約25,765年 / (天文学、歴史) 天文学的または占星術的な意味を持つ、実際または想像上の周期
（ plural ）
Quizzes for review
(astronomy, historical) One complete precession of the equinox, approximately 25,765 years. / (astronomy, historical) Any real or imagined cycle with astronomical or astrological significance.
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Great Year
Historians and astronomers debated whether myths referred to the Great Year, a cycle that spans roughly 25,765 years.
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Historians and astronomers debated whether myths referred to the Great Year, a cycle that spans roughly 25,765 years.
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