red dwarf

n. A dwarf star, ranging in mass from one-tenth to one-half the mass of the sun, whose relatively cool surface temperature makes it appear red-orange in color.

red dwarf

n (Celestial Objects) one of a class of small cool main-sequence stars

red′ dwarf′

n. any of the faint reddish stars smaller than the sun and with low surface temperatures, about 2000–3000 K.

red dwarf

A star that is cool, small, and very faint. Red dwarfs burn very slowly and live for about 100 billion years. Although they are difficult to see, they are likely the most abundant type of star. Proxima Centauri is a red dwarf.

Thesaurus

Noun

red dwarf - a small, old, relatively cool star; approximately 100 times the mass of Jupiterred dwarf starflare star - a red dwarf star in which luminosity can change several magnitudes in a few minutesstar - (astronomy) a celestial body of hot gases that radiates energy derived from thermonuclear reactions in the interior

red dwarf

Any of a large group of main-sequence stars, mainly M and K stars, that are much cooler, smaller, and less massive than the Sun (about 0.1–0.7 M_O ). The convective motion within these stars, in combination with their rotation, generates a magnetic field, and the stars display a range of magnetically initiated phenomena similar to and sometimes more energetic than those occurring on the Sun. These include starspots, flares, and hot chromospheres and coronae. See also flare stars; dwarf star.

red dwarf

red dwarf

red dwarf

red′ dwarf′

red dwarf

red dwarf

red dwarf

red dwarf

Synonyms for red dwarf

noun a small, old, relatively cool star

Synonyms

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