What Are White Dwarf Stars?

White dwarfs are basically the burned-out cores of stars. When a red giant expels most of its outer material it becomes a planetary nebula and what remains is the core of the star which becomes a very hot white dwarf with a temperature over 100,000 Kelvin.

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Narrator:
Russell Archey
https://www.ravonmedia.com/

Credits & Graphics:
NASA, ESA, and K. Noll (STScI)
Space Engine

Music:
Outer Space Revelations - Miles Avida
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