Last Updated：2025/12/08

(astronomy, physics) A unit of length equal to the distance light travels in one millisecond: approximately 300 kilometers

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milli-light second

Source Word

milli-light second

(astronomy, physics) A unit of length equal to the distance light travels in one millisecond: approximately 300 kilometers

Japanese Meaning

1ミリ秒間で光が進む距離に相当する長さの単位、約300キロメートル

望遠鏡の指向精度は、小さな小惑星が視野にとどまるよう、光が1ミリ秒で進む距離以内に保つ必要があった。

Sense（1）

(astronomy, physics) A unit of length equal to the distance light travels in one millisecond: approximately 300 kilometers

milli-light seconds

（ plural ）