white dwarf star


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Related to white dwarf star: red dwarf star

white dwarf star

[′wīt ¦dwȯrf ′stär]
(astronomy)
An intrinsically faint star of very small radius and high density; the mass is about 0.6 that of the sun and the average radius is about 5000 miles (8000 kilometers); it is one final stage of stellar evolution with thermonuclear energy sources extinct.
References in periodicals archive ?
They say the star system will have seen "dramatic changes" recently and the cue ball of the snooker system - the white dwarf star - may have caused violent changes to its own orbit and the orbit of other planets.
A large team of Japanese scientists hypothesized that "Type Ia supernova could be the result of a white dwarf star consuming helium from a companion star.
AM CVn systems consist of a small and hot white dwarf star which is devouring its larger companion.
Type 1a supernovas occur after a white dwarf star gains weight, probably from eating material shed by a companion star.
The white dwarf star is in the constellation Virgo, 463 light years from e arth.
The cosmic diamond is a chunk of crystallised carbon in the core of a white dwarf star.
The white dwarf star V407 Cyg lies 9,000 light-years away in the plane of our Milky Way galaxy.
The coldest discrete object measured outside our solar system is WD 0806-661 B, a dim, mid-infrared fellow-traveler of a white dwarf star 63 light-years away in Volans.
It looks,as you would expect,like two dark patches that make up its eyes and a bright central white dwarf star to serve as a beak.
It is named for a White Dwarf Star, a small and extremely dense star.
A scrappy white dwarf star flying through the Milky Way galaxy may have survived a supernova explosion and if it's what scientists think, it would give them evidence to back up a new idea about what these massive space blasts look like.
Modern astronomers know that the event Tycho and others observed was a Type Ia supernova, caused by the explosion of a white dwarf star.