Last Updated
：2025/11/20
cepheid variable
Noun
Japanese Meaning
セフェイド変光星：天文学において、恒星が放射方向に膨張・収縮し、周期的な明るさの変化を示す変光星。周期と固有の明るさとの間に関係があるため、距離測定などに利用される。
（ plural ）
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(astronomy) A radially pulsating (expanding and contracting) variable star with a regular period and known relationship between period and intrinsic brightness.
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cepheid variable
The astronomer used a cepheid variable to calculate the distance to the neighboring galaxy.
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The astronomer used a cepheid variable to calculate the distance to the neighboring galaxy.
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