dwarf star

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.

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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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 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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Universalium. 2010.

Look at other dictionaries:

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  • Dwarf star — The term dwarf star refers to a variety of distinct classes of stars. Dwarf star alone generally refers to any main sequence star, a star of luminosity class V. Red dwarfs are low mass main sequence stars. Yellow dwarfs are main sequence (dwarf)… …   Wikipedia

  • dwarf star — noun : dwarf 4 * * * 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] * * * dwarf star, = dwarf (def. 3): (Cf. ↑dwarf) »Discovery of flareups on two …   Useful english dictionary

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  • dwarf star — noun A star that is located in the main sequence in the Hertzsprung Russell diagram; fuses hydrogen into helium in its core. Syn: dwarf, main sequence star …   Wiktionary

  • dwarf star — /ˈdwɔf sta/ (say dwawf stah) noun a star of relatively small volume and low luminosity, but often of high density …   Australian English dictionary

  • white dwarf star — Any of a class of small, faint stars representing the end point of the evolution of stars without enough mass to become neutron stars or black holes. Named for the white colour of the first ones discovered, they actually occur in a variety of… …   Universalium

  • red dwarf star — noun a small, old, relatively cool star; approximately 100 times the mass of Jupiter • Syn: ↑red dwarf • Hypernyms: ↑star • Hyponyms: ↑flare star …   Useful english dictionary

  • white dwarf star — noun a faint star of enormous density • Syn: ↑white dwarf • Hypernyms: ↑star …   Useful english dictionary

  • Q Velorum (dwarf star) — Starbox short name=q Velorum epoch=J2000.0 constell=Vela ra=10h 14m 44.2s dec=−42° 07 19 spectral=A2V appmag v=+3.85 dist ly=103 ± 2 dist pc=32 ± 1 names=HR 4023, HD 88955, CD 41°5713, FK5 382, HIP 50191, SAO 221895, GC 14076q Velorum (q Vel) is… …   Wikipedia

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