Pulsating Star - Myakudosei
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Also known as a pulsating variable star. A star whose brightness changes due to the repeated regular expansion and contraction of the star (pulsation). The pulsation is caused by the star's inherent vibration. A typical example is Delta Cepheus, whose brightness changes from magnitude 3.7 to 4.9 in a 5.4-day cycle. → Variable star Source : Heibonsha Encyclopedia About MyPedia Information |
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脈動変光星とも。星の規則的な膨張・収縮の繰り返し（脈動）のために，明るさの変化する星。脈動は星の固有振動によるもの。5.4日の周期で3.7等から4.9等まで明るさを変えるケフェウス座δ星が代表例。→変光星
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