Last Updated:2025/08/27
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光秒(天文距離)

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Source Word

seconde-lumière

IPA(Pronunciation)
Noun
feminine

光が真空中を1秒間に進む距離を表す天文学上の距離の単位。光秒。

English Meaning
light second (astronomical distance)
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宇宙ステーションと地球間の距離は、天文学の測定単位である光秒で表されます。

The distance between the space station and Earth can be expressed in light seconds, an astronomical unit of measurement.

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plural

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