: a star whose brightness changes usually in more or less regular periods
Examples of variable star in a Sentence
Recent Examples on the Web
Examples are automatically compiled from online sources to
show current usage.Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Bradley Schaefer, an astronomer at Louisiana State University, focuses on cataclysmic variable stars, objects that vary in brightness over time due to some type of major turmoil.—Liz Kruesi, Quanta Magazine, 2 Feb. 2026 In another imaging campaign, API, assisted by AMIGO, was able to produce detailed images of a black hole jet, the volcanic surface of Jupiter's moon Io, and stellar winds emanating from a distant variable star.—Tereza Pultarova, Space.com, 5 Nov. 2025 Many of these alerts will be triggered by variable stars, which cyclically change in brightness.—IEEE Spectrum, 23 June 2025 As one of the largest, most luminous stars in our Milky Way Galaxy, the variable star VY Canis Majoris is a likely candidates for the next naked-eye core-collapse supernova, said Guinan.—Bruce Dorminey, Forbes, 13 Jan. 2025 See All Example Sentences for variable star