专业释义英英释义
Cepheid variable
- abstract: A Cepheid ( or ) is a member of a class of very luminous variable stars. The strong direct relationship between a Cepheid variable's luminosity and pulsation period secures for Cepheids their status as important standard candles for establishing the Galactic and extragalactic distance scales.
以上来源于: WordNet
柯林斯英汉双解大词典
Cepheid variable /ˈsiːfɪɪd/
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1.
N any of a class of variable stars with regular cycles of variations in luminosity (most ranging from three to fifty days). There is a relationship between the periods of variation and the absolute magnitudes, which is used for measuring the distance of such stars 造父变星 [astronomy]
双语例句原声例句
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Another type of standard candle is a type of star called a Cepheid variable.
另一种标准烛光是一种叫做造父变星的恒星。
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His first great discovery was made when he recognized a Cepheid variable star.
他的首次重大发现产生于他认识了一颗造父变星的时候。
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They discovered almost 800 Cepheid variable stars, a special class of pulsating star used for accurate distance measurement.
他们发现了差不多800个造父变星，一种用于准确测量距离的特殊变星。
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