Meaning Of The Word RR Lyrae star

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RR Lyrae star Meaning

RR Lyrae star Definition
RR Lyrae star Definition

What's The Definition Of RR Lyrae star?

RR Lyrae star in American English
noun: one of a group of pulsating variable stars found in the halo of the Milky Way, with periods between 1.2 and 30 hours; all have approximately the same luminosity and are therefore used for measuring distances

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