最終更新日：2024/07/30

The period in which the sun is less than 6° below the horizon in the morning and evening.

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civil twilight

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元となった辞書の項目

civil twilight

noun

The period in which the sun is less than 6° below the horizon in the morning and evening.

During civil twilight, the sky is still illuminated but the sun is below the horizon.

意味（1）

The period in which the sun is less than 6° below the horizon in the morning and evening.