variable star

variable star
var′iable star′
n.
astron. a star that varies in brightness often in a regular period
Etymology: 1780–90

From formal English to slang. 2014.

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Look at other dictionaries:

  • Variable star — Star Star (st[aum]r), n. [OE. sterre, AS. steorra; akin to OFries. stera, OS. sterro, D. ster, OHG. sterno, sterro, G. stern, Icel. stjarna, Sw. stjerna, Dan. stierne, Goth. sta[ i]rn[=o], Armor. & Corn. steren, L. stella, Gr. asth r, a stron,… …   The Collaborative International Dictionary of English

  • variable star — n. a star whose brightness varies from time to time as the result of causes operating outside the earth s atmosphere: see CEPHEID (VARIABLE), RR LYRAE VARIABLES …   English World dictionary

  • Variable star — A star is classified as variable if its apparent brightness as seen from Earth changes over time, whether the changes are due to variations in the star s actual luminosity, or to variations in the amount of the star s light that is blocked from… …   Wikipedia

  • variable star — Astron. a star that varies markedly in brightness from time to time. Also called variable. [1780 90] * * * Star whose observed brightness varies noticeably in intensity. Pulsating variables expand and contract in cycles, pulsating rhythmically in …   Universalium

  • Variable Star — For the astronomical object, see Variable star. infobox Book | name = Variable Star title orig = translator = image caption = author = Robert A. Heinlein Spider Robinson cover artist = Stephan Martiniere country = United States language = English …   Wikipedia

  • variable star — /ˈvɛəriəbəl sta/ (say vairreeuhbuhl stah) noun a star the brightness of which changes. See Cepheid variable star, extrinsic variable star, intrinsic variable star, irregular variable star, periodic variable star …  

  • variable star — kintamoji žvaigždė statusas T sritis fizika atitikmenys: angl. variable star vok. veränderlicher Stern, m rus. переменная звезда, f pranc. étoile variable, f …   Fizikos terminų žodynas

  • Variable star designation — Variable stars are named using a variation on the Bayer designation format of an identifying label (as described below) combined with the Latin genitive of the name of the constellation in which the star lies. See List of constellations for a… …   Wikipedia

  • variable star — noun a star that varies noticeably in brightness • Syn: ↑variable • Hypernyms: ↑star • Instance Hyponyms: ↑Polaris, ↑North Star, ↑pole star, ↑polar star, ↑ …   Useful english dictionary

  • variable star — noun Any star whose brightness varies. Syn: variable …   Wiktionary

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