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White dwarfs are no longer undergoing fusion, so while they are initially very hot ... white-hot, in fact ... they slowly cool and eventually become black dwarfs, completely burnt-out stars. We don't know of any black dwarfs, because by definition they don't emit light and because the universe isn't old enough for any stars to have cooled that far yet. It's estimated based on known physics that it would take about a million billion (1015)years for a white dwarf to cool to the temperature of the cosmic background radiation, and possibly longer than that if WIMPs or proton decay exist.
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∙ 12y ago
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∙ 8y agoA white dwarf is often the core of a star that has died. The outer portions of the star are blown away while the core collapses into a dense remnant.
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∙ 14y agoVan Maanen's star is a white dwarf star. It is the third closest to the Sun and is located 14.1 light years from us in the constellation Pisces.
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∙ 14y agoIK Pegasi B is a white dwarf star.
See related link for a pictorial - the white star is IK Pegasi A and the yellow star is our Sun. The small white dot - is IK Pegasi B
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∙ 13y agoThe smallest white dwarf is White Dwarf A.C.+70°8247 - with a diameter roughly half that of Earth.
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∙ 11y agoI'm guessing a star
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∙ 14y agoSun or star.
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∙ 13y agoThe one that is next observed.
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Will the sun be a white dwarf for the rest of eternity?
No. After the sun becomes a white dwarf it will eventually cool to become a black dwarf.
Which is the correct order - white dwarf or red?
It is called white dwarf. A white dwarf is a small star. If you heard of red giant it mean huge star.
Is a white dwarf smaller than a red dwarf?
Yes, far smaller. A red dwarf is a whole star in and of itself. A white dwarf is the collapsed remnant of the core of a low-to medium mass star. A white dwarf may be about the size of Earth.
When does a white dwarf run out of fuel?
A white dwarf is the remnant of a star that has already run out of fuel.
When a star has no fuel left and its outer layers escape into space what is its remaining core called?
When the layers escape into space, this is classified as a planetary nebula. What usually is left behind is a white dwarf.
Is a brown dwarf star on its way to becoming a black dwarf?
No. A brown dwarf is a star that has too low a mass to start nuclear fusion. A black dwarf is a former white dwarf, the remnant of a low to medium mass star that ran out of fuel in its core.
What type of stars has a low temperature and high luminosity?
A white dwarf.A white dwarf.A white dwarf.A white dwarf.
Why would a white dwarf become a red dwarf?
A white dwarf could not become a red dwarf. A white dwarf is a remnant of a dead star. A red dwarf is a star with a very low mass.
Are white dwarf stars always white?
No in the life cycle of a star, a white dwarf can cool and become a black dwarf
What is a cooled white dwarf star that is extremely dense?
A cooled white dwarf is a black dwarf. I think you are thinking of a neutron star which has nothing to do with a white dwarf.
Is Pluto a white dwarf star?
Pluto is not a white dwarf star, it is just a dwarf planet.
What comes before white dwarf and after white dwarf?
Red giant - Black dwarf. See related questions.
Is the white dwarf the biggest star?
No a white dwarf is a small compact star.
When was White Dwarf - magazine - created?
White Dwarf - magazine - was created in 1977.
When was The White Dwarf created?
The White Dwarf was created on 1963-02-17.
Are white dwarf stars young?
No. A white dwarf is a remnant of a dead star.
Is a dwarf star and a white dwarf the same thing?
No. A dwarf star is a small star. A white dwarf is just one particular type of dwarf star, but there are other types.
