最終更新日:2022/12/24
They are stated to be the circles of unequal or planetical hours, or one-twelfth part of the time between sunset and sunrise, the division of the night in common use in early times.
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They are stated to be the circles of unequal or planetical hours, or one-twelfth part of the time between sunset and sunrise, the division of the night in common use in early times.