pulsating star

British

noun

a type of variable star, the variation in brightness resulting from expansion and subsequent contraction of the star

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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pulsating star

Similar to a lighthouse, the pulsar's beams can sweep across the Earth, making the pulsating star easily observable.

From Science Daily ● Oct. 6, 2023

But this pulsating star theory still doesn’t explain everything about this supernova, Arcavi said.

From Seattle Times ● Nov. 10, 2017

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023