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What is a pulsating variable?

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Pulsating variables account for more than half of the known variable stars. They are characterized by slight instabilities that cause the star alternately to expand and contract. This pulsation is accompanied by changes in absolute luminosity and temperature.

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Similar questions: What changes occur in pulsating variables? What qualities do pulsating variables have? What makes a star a pulsating variable? What characterizes a pulsating variable? [ Hide these questions ]

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