Meaning Of The Word Variable star

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Variable star Meaning

Variable star Definition
Variable star Definition

What's The Definition Of Variable star?

variable star in American English
a star that varies markedly in brightness from time to time
a star whose brightness varies from time to time as the result of causes operating outside the earth's atmosphere

variable star in British English
noun: any star that varies considerably in brightness, either irregularly or in regular periods. Intrinsic variables, in which the variation is a result of internal changes, include novae, supernovae, and pulsating stars

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