A very small, white star formed when an average sized star uses up its fuel supply and collapses. This process often produces a planetary nebula, with the white dwarf star at its center.

small, dense "main sequence" star that has used up most of its nuclear fuel.

A very dense star with a mass below 1.4 solar masses that is no longer burning nuclear fuel. The Sun will one day evolve into a white dwarf with a diameter of 10 000 km.

A hot white star that has a much smaller diameter and much higher density than average. It is believed to be the final stage of a low-mass star.

small, very dense star of carbon that results when a star of low mass, like our sun, collapses. wildfire -

White dwarfs (luminosity class wd) are the hot, compact, collapsed remains of stars that have exhausted their core fusion. They are about the size of the Earth but with the mass of the Sun hence are extremely dense. Electron degeneracy pressure prevents further collapse.

A white star of low luminosity, small size, and extremely high density.

Is a a star supported by electron degeneracy. A star like our Sun will become a white dwarf when it has exhausted its nuclear fuel. Near the end of its nuclear burning stage, such a star goes through a red giant phase and then expels most of its outer material (creating a planetary nebula) until only the hot (T > 100,000 K) core remains, which t [..]

Dense remains of an intermediate mass star like the sun that has collapsed and is the same size as earth.

Phase of a solar-type star following that of a red giant. The surface temperature of a white dwarf is around 10,000 Kelvin and its luminosity is very low. Average voluminal mass is approximately 1 ton per cubic meter.