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Red dwarf
type of small and relatively-cool star / From Wikipedia, the free encyclopedia
A red dwarf is a kind of star. Red dwarf stars are smaller than half the size of the Sun. They are also cooler than most stars. Red dwarfs burn their fuel slowly, so they shine with less light (absolute magnitude) than hot stars.
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Red dwarf stars are the most common in our galaxy, at least near our sun. (We cannot see them if they are in other distant galaxies.) However, since red dwarf stars are cool and small, none can be found with the naked eye. The closest star to the Earth is named Proxima Centauri. The Latin word proxima means "nearest to". Proxima Centauri is a red dwarf.