最終更新日：2024/08/03
A sleepless night. / (astronomy) A night with only civil twilight, where the sun does not go further than 6° below the horizon.
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white night
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A sleepless night. / (astronomy) A night with only civil twilight, where the sun does not go further than 6° below the horizon.
white night
DiQt（ディクト）
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★★★★★★★★★★
