Last Updated：2025/12/06
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The telescope's resolving power reached 0.5 arc-second, revealing intricate structure in the distant nebula.
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The telescope's resolving power reached 0.5 arc-second, revealing intricate structure in the distant nebula.
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Related words
arc-second
Noun
alt-of
alternative
Japanese Meaning
「arc-second」は「arcsecond」の別表記で、1度を3600に分割した角度の単位（弧秒）を指します。天文学や測量などで使用される用語です。
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