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Variable Star (Noun)

Meaning

A star that varies noticeably in brightness.

Classification

Nouns denoting natural objects (not man-made).

Examples

  • Betelgeuse, the reddish supergiant star in the constellation Orion, is a semi-regular variable star whose brightness has been studied extensively by astronomers.
  • Algol is an eclipsing variable star whose variability can be detected by even modest backyard telescopes, its light sometimes visible only half a century.
  • For two hundred years now it was obvious to astronomers that Sirius was a variable star, though over just a tiny part of its frequency spectrum.
  • A team of astronomers discovered that V1351, a star in the constellation Virgo, is actually a triple star and a variable star.
  • In order to study the atmosphere of the variable star delta Scuti, it would be necessary to map every ten minutes how brightness compares to different times of day.

Synonyms

  • Variable
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