Dictionary.com

red star

noun Astronomy.

any star with a low surface temperature and a reddish color, as a red giant or a red dwarf.

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Origin of red star

First recorded in 1900–05

Words nearby red star

red-spotted purple, red spruce, Red Square, red squill, red squirrel, red star, redstart, red state, Redstone, red stuff, red supergiant
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for red star

  • One is the F. of hydrogen; another is the red-star line of Jupiter and Saturn.

    History of Astronomy|George Forbes