The point in stellar evolution when a star has used up all its fuel and is radiating away its remaining thermal energy as light is the ___________stage.
A) white dwarf
B) black hole
C) main- sequence star
D) red giant

Question

Quizplus · Accepted Answer

A white dwarf is formed after a star has used up all its fuel and has shed its outer layers in a planetary nebula leaving only the hot core behind. The white dwarf will then radiate away its remaining thermal energy as light over a long period of time. Black holes and main-sequence stars are not related to this stage, while red giants are formed earlier on in stellar evolution before a star has used up all its fuel.

The Point in Stellar Evolution When a Star Has Used