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：2025/11/28
Platonic year
（ plural ）
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(astronomy) Great Year; one complete precession of the equinoxes, approximately 25,765 years.
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Platonic year
Astronomers discussed how the precession of the equinoxes determines the length of a Platonic year.
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Astronomers discussed how the precession of the equinoxes determines the length of a Platonic year.
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