black dwarf
Dead stellar cinder
A black dwarf is a theoretical stellar remnant—what a white dwarf would become after cooling for trillions of years until it no longer emits significant heat or light.
Since the universe is only about 13.8 billion years old, no black dwarfs are believed to exist yet; even the oldest white dwarfs remain too hot.
The term represents the final, cold endpoint in the lifecycle of low- to medium-mass stars.
Losing thermal energy
- heat deathUniverse's final entropic state
- big freezeProlonged extreme cold
- entropyQuantified chaos in systems
- carbonSixth element, atomic symbol C
crystal · cosmology · astrophysics · hypothetical · unobserved · thermal equilibrium · background radiation
- burned outExhausted from overexertion
- exhaustedUtterly depleted of energy
- spentExhausted or disbursed
- depletedSeverely reduced or emptied
remnant · fossil · relic · ancient · primordial · lifeless · silent · dark
Solidified by extreme cold
faint · cooling · absolute zero · radiation · ember · cinder · husk · inert
Aged star with cooled, expanded envelope
- neutron starUltradense stellar remnant
- supernovaExploding massive star
- planetary nebulaIonized gas from dying star
- main sequenceStable stellar burning phase
solar mass · galaxy · core collapse · fusion · luminosity · magnitude
cooling
Losing thermal energy
- heat deathUniverse's final entropic state
- big freezeProlonged extreme cold
- entropyQuantified chaos in systems
carbon · crystal · cosmology · astrophysics · hypothetical · unobserved · thermal equilibrium · background radiation
dead star
- burned outExhausted from overexertion
- exhaustedUtterly depleted of energy
- spentExhausted or disbursed
depleted · remnant · fossil · relic · ancient · primordial · lifeless · silent · dark · invisible
frozen
Solidified by extreme cold
dim · faint · cooling · absolute zero · radiation · ember · cinder · husk · inert · dormant
red giant
Aged star with cooled, expanded envelope
- neutron starUltradense stellar remnant
- supernovaExploding massive star
- planetary nebulaIonized gas from dying star
main sequence · solar mass · galaxy · core collapse · fusion · luminosity · magnitude
black dwarfprotostar
Pre-fusion celestial body
young star · blue giant · supergiant · stellar nursery · red giant
black dwarfhypergiant
Most massive star type
supergiant · red supergiant · blue supergiant · black hole · neutron star
black, blacken, dwarf, blackness, blacks, blackish, dwarfs, dwarfish, blackly