: a star whose brightness changes usually in more or less regular periods
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After weeks, months and years of observations, astronomers will have a time-lapse record revealing anything that explodes, flashes or moves – such as supernovas, variable stars or asteroids.—Samantha Thompson, Space.com, 7 July 2025 Among the supernovas in the data will be other transient events such as variable stars and kilonovas, the violent collision between extreme dense stellar remnants called neutron stars.—Robert Lea, Space.com, 27 Jan. 2025 In particular, Leavitt would scrutinize images of the Small and Large Magellanic Clouds, and had identified 1,800 variable stars within them.—Keith Cooper, Space.com, 17 Jan. 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
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