What is the name for a “pulsating star”?
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"Mira " is one of the pulsating
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Artist's impression of the eclipsing binary system, including a pulsating star called a Cepheid variable. (Image: © ESO/L. Calçada) A variable star is, quite simply, a star that changes brightness. A star is considered variable if its apparent magnitude (brightness) is altered in any way from our perspective on Earth.
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