pulsating star


Also found in: Acronyms, Encyclopedia, Wikipedia.

pulsating star

n
(Astronomy) a type of variable star, the variation in brightness resulting from expansion and subsequent contraction of the star
Mentioned in ?
References in periodicals archive ?
A How the star loses so much mass has yet to be explained but the new type of pulsating star discovered by the astronomers could offer up some new clues about stellar collisions.
As a pulsating star expands and contracts, its brightness and colour will change through the pulsation cycle.
V1 is a special class of pulsating star called a Cepheid variable that can be used to make reliable measurements of large cosmic distances.
If further work verifies that the birth of Geminga was indeed a holey event, it could shed new light on the nature of this pulsating star, as well as on the evolution of the interstellar medium surrounding the sun and its neighbors.
Long known as a pulsating star that dims and then brightens approximately every four days, Polaris now appears to be changing rapidly to one whose brightness remains constant.
Washington, Jan 19 (ANI): Scientists have discovered, for the first time, a delta Scuti pulsating star that hosts a hot giant transiting planet.
CW Leo is a red giant pulsating star in the constellation of Leo.
We have essentially created an animation of a pulsating star using real images," stated Lacour.
NGC 3972 also contains many pulsating stars called Cepheid variables.
Cepheids, also referred to as pulsating stars for their ability to throb in brightness over a regular cycle, are monitored to gauge their precise brightness and the data is then compared with what is visible from Earth to work out a distance.
Catelan and Smith introduce the history, observations, and theory of pulsating stars as they are known in the early 21st century.
Hubble even monitored pulsating stars as far as 70 million light-years away.