A white dwarf is several hundred billion times denser than the average density of the sun.
The obvious reason is that the specific star has bigger density compared with the Sun. For example, that star could be a "white dwarf star". A white dwarf mostly contains "electron degenerate matter", which is very dense. A white dwarf is a small dense star.
In 5 billion years time, our Sun will turn into a white dwarf.
It will first become a red giant, then turn into a white dwarf and in billions and billions of years it will become a black dwarf.
A white dwarf has the approximate diameter of a moon, or a small planet.
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.
The obvious reason is that the specific star has bigger density compared with the Sun. For example, that star could be a "white dwarf star". A white dwarf mostly contains "electron degenerate matter", which is very dense. A white dwarf is a small dense star.
In 5 billion years time, our Sun will turn into a white dwarf.
A white dwarf, also called a degenerate dwarf, is a small star composed mostly of electron-degenerate matter. They are very dense; a white dwarf's mass is comparable to that of the Sun and its volume is comparable to that of the Earth.
It will first become a red giant, then turn into a white dwarf and in billions and billions of years it will become a black dwarf.
A white dwarf has the approximate diameter of a moon, or a small planet.
A white dwarf is typically about the size of Earth, but with a mass comparable to that of the Sun. This means it is extremely dense, packing a lot of mass into a small volume.
They are opposites a white is very dense like the Sun & brown insufficiently dense to form a reaction. Details both too lengthy to post here so search brown dwarf wikipedia & do the same with white & you will be bombarded with info.
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.
Our Sun is currently a main sequence star. It is not a supernova, as supernovae are massive explosions that occur at the end of a star's life cycle, and it is not a white dwarf, which is a type of star that has exhausted its nuclear fuel and collapsed to a very dense state.
No, our sun is not massive enough to become a neutron star. When our sun runs out of fuel, it will shed its outer layers and become a planetary nebula, leaving behind a dense core called a white dwarf.
White dwarf
A white dwarf is much larger than a neutron star.