variable star


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Related to variable star: neutron star, binary star, Cepheid variable star

variable star

n.
A star whose brightness varies because of internal changes, periodic eclipsing by a mutually orbiting star, or periodic transiting of orbiting planets or other circumstellar material.

variable star

n
(Celestial Objects) any star that varies considerably in brightness, either irregularly or in regular periods. Intrinsic variables, in which the variation is a result of internal changes, include novae, supernovae, and pulsating stars. See also eclipsing binary

var′iable star′



n.
a star that varies in brightness often in a regular period.
[1780–90]

variable star

A star whose brightness changes periodically. The variation can occur because of internal changes in a single star or because a darker star periodically eclipses a brighter star in a binary star system.

variable star

A star that varies in brightness because of internal changes or because it is periodically eclipsed by other bodies.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.variable star - a star that varies noticeably in brightnessvariable star - a star that varies noticeably in brightness
star - (astronomy) a celestial body of hot gases that radiates energy derived from thermonuclear reactions in the interior
References in periodicals archive ?
In 1929 German astronomer Cuno Hoffmeister at Sonneberg Observatory identified what he thought was a variable star in the small constellation of Lacerta, the Lizard.
Could the star have been a supernova or variable star? A comet perhaps?
It is with a great sense of loss that we have to announce the passing of Dr Jannie Smit, affectionately known simply as "Doc", long time member of the Pretoria Centre of ASSA and a noted variable star observer.
The slightly shrouded star just to the left is known as V376 Cassiopeia, another variable star that has succumbed to its neighbour's infectious sneezing fits; this star is also sneezing, creating yet another Herbig-Haro object-HH 162.
2012 January 1 saw a major milestone for the Variable Star Section with the new online database going live.
Polaris is what astronomers call a Cepheid variable star, a pulsating star used by scientists to measure distances in space.
The newly discovered object is in the central part of the Galaxy and may turn out to be a variable star similar to the Mira star.
school of September 2005, lecturers describe broad topics within variable star science and the students attending present short papers and posters.
Astronomers may recognize that the word is also used for the constellation Cetus, but even they are likely to limit its meaning to the physical constellation lying above the equator containing the variable star Mira.
Quantifying the shapes of Cepheid variable star light curves is a technique that has been in use for the past several decades.
As Laura Baffoni Licata notes in the "Afterward" to Luigi Bonaffini's new English translation, Variable Star, it is a collection in which "the poet's discourse centers on 'variations' of a few fundamental themes, among which predominates, from the very first composition, the theme of death" (79-80).
The first variable star to be discovered was Omicron Ceti.

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