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  1. Home
  2. Glossary
  3. White Dwarf
Stellar Astronomy

White Dwarf

Definition

A stellar core remnant of electron-degenerate matter, Earth-sized but with a mass comparable to the Sun. The final state of stars not massive enough for neutron stars or black holes. They slowly cool and fade over billions of years.

Related Terms

Main Sequence

A band on the Hertzsprung-Russell diagram representing stars fusing hydrogen into helium. Stars spend the majority of th...

Red Giant

A luminous giant star that has exhausted its core hydrogen. The outer layers expand and cool, giving a reddish appearanc...

Supernova

A powerful explosion at the end of a massive star's life, briefly outshining an entire galaxy. Supernovae scatter heavy ...

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Full Glossary

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