黒こく色しょく矮わい星せい

noun

black dwarf

Astronomical term for a theoretical stellar remnant: a white dwarf that has cooled sufficiently to no longer emit significant heat or light. The universe is not old enough for any to exist yet.

• 黒こく色しょく矮わい星せいは、白はく色しょく矮わい星せいが冷ひえ切きった後あとの姿すがただと考かんがえられている。

  A black dwarf is thought to be the state of a white dwarf after it has completely cooled down.

• 宇う宙ちゅうの年ねん齢れいでは、まだ黒こく色しょく矮わい星せいは存そん在ざいしないとされる。

  Given the age of the universe, it is believed that no black dwarfs exist yet.