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Astronomers used a standard candle to measure the galaxy's distance.
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Astronomers used a standard candle to measure the galaxy's distance.
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Related words
standard candle
Noun
Japanese Meaning
天文学において、絶対等級（天体の真の明るさ）が既知の天体を指す。既知の絶対等級と観測される見かけの明るさから、その天体までの距離を計算するために利用される。
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