eclipsing variable star — noun a variable star whose changes in brightness are caused by periodic eclipses of two stars in a binary system …
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
eclipsing double star — noun see eclipsing variable … Useful 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
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
Semiregular variable star — Semiregular variable stars are giants or supergiants of intermediate and late spectral type showing considerable periodicity in their light changes, accompanied or sometimes interrupted by various irregularities. Periods lie in the range from 20… … Wikipedia
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
Cataclysmic variable star — Cataclysmic variable stars (CV) are stars which irregularly increase in brightness by a large factor, then drop back down to a quiescent state. They were initially called novae, from the Latin new , since ones with an outburst brightness visible… … Wikipedia
star — starless, adj. /stahr/, n., adj., v., starred, starring. n. 1. any of the heavenly bodies, except the moon, appearing as fixed luminous points in the sky at night. 2. Astron. any of the large, self luminous, heavenly bodies, as the sun, Polaris,… … Universalium