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red dwarf

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Definition of red dwarf in English:

noun

Astronomy
A small, old, relatively cool star.
Example sentences
  • Despite the fact that red dwarfs are relatively cool, the small orbit means that temperatures on this world are extra toasty - several hundred degrees Celsius.
  • This list is being added to as astronomers discover new red dwarfs and other small stars - which are still many times bigger than Jupiter and may possess planets.
  • The newfound planet's host star is a red dwarf with about one-fifth the mass of our sun.

Definition of red dwarf in:

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