Last Updated:2025/11/24
Sentence

その望遠鏡は軌道要素を精密化するため、連星系を5つの恒星年にわたって観測した。

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The telescope monitored the binary system for five sidereal years to refine its orbital elements.

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The telescope monitored the binary system for five sidereal years to refine its orbital elements.

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Related words

sidereal years

Noun
form-of plural
Japanese Meaning
「sidereal year」は「恒星年」という意味で、「sidereal years」はその複数形です。英語での意味が活用形を示しているため、日本語では「恒星年」の複数形として理解されます。
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その望遠鏡は軌道要素を精密化するため、連星系を5つの恒星年にわたって観測した。

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