dwarf star

Astron.

any of the ordinary main sequence stars, as those of spectral types O, B, A, F, G, K, and M. Also called dwarf. Cf. white dwarf.

[1910-15]

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Any star of average or low luminosity, mass, and size, including white dwarf stars and red dwarf stars.

Dwarf stars include most main-sequence stars (see Hertzsprung-Russell diagram), including the Sun. Their colour can range from blue to red, corresponding to temperatures varying from over 17,500 °F (10,000 °C) to a few thousand degrees.

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▪ astronomy

 any star of average or low luminosity, mass, and size. Important subclasses of dwarf stars are white dwarfs (see white dwarf star) and red dwarfs. Dwarf stars include so-called main-sequence stars, among which is the Sun. The colour of dwarf stars can range from blue to red, the corresponding temperature varying from high (above 10,000 K) to low (a few thousand K).

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