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The astronomers closely monitored the Mira variable as its brightness declined over a 330-day cycle.
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The astronomers closely monitored the Mira variable as its brightness declined over a 330-day cycle.
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Related words
Mira variable
Noun
Japanese Meaning
天文学：非常に赤い色を持ち、パルス周期が100日以上で、赤外線において1等級以上、可視光において2.5等級以上の振幅で輝度が変動する脈動変光星の一種。
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