Eclipsing Variable

   A Binary System where one star is brighter than the other. As one star eclipses the other, the brightness increases or decreases, as seen from the Earth. This change in brightness may take hours or years.

The writer's dictionary of science fiction, fantasy, horror and mythology. 2014.

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  • eclipsing variable — noun also eclipsing double star or eclipsing binary Etymology: eclipsing from present participle of eclipse (II) : a binary star in which the orbit plane lies near the line of sight so that one or both of the stars may eclipse the other as they… …   Useful english dictionary

  • eclipsing variable — Astron. a variable star whose changes in brightness are caused by periodic eclipses of two stars in a binary system. Also called eclipsing binary. [1920 25; ECLIPSE + ING2] * * * …   Universalium

  • eclipsing variable star — or eclipsing binary Binary star in an orbit whose plane passes through or very near Earth. An observer on Earth sees one star pass periodically in front of the other and diminish its light through an eclipse. The star Algol, in the constellation… …   Universalium

  • eclipsing variable star — noun a variable star whose changes in brightness are caused by periodic eclipses of two stars in a binary system …   Australian English 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 — variability, variableness, n. variably, adv. /vair ee euh beuhl/, adj. 1. apt or liable to vary or change; changeable: variable weather; variable moods. 2. capable of being varied or changed; alterable: a variable time limit for completion of a… …   Universalium

  • eclipsing binary — noun see eclipsing variable …   Useful english dictionary

  • eclipsing double star — noun see eclipsing variable …   Useful english dictionary

  • Variable de type Algol — Un système binaire à éclipses. Courbe de luminosité. Les variables de type Algol o …   Wikipédia en Français

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