light-year
Pronunciation
/ˈɫaɪtˌjɪɹ/
British pronunciation
/lˈaɪtjˈiə/

英語での「light-year」の定義と意味

Light-year
01

光年, 光年

the distance that light travels in a year (about 9.46 trillion kilometers)
example
Proxima Centauri, the closest star to Earth, is 4.24 light-years away.
プロキシマ・ケンタウリ、地球に最も近い星は、4.24 光年離れています。
The galaxy is roughly 100,000 light-years in diameter.
銀河の直径は約100,000 光年です。
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