The _________ stars are giant stars fusing helium in their cores and then in their shells.
A)turnoff-point
B)main-sequence
C)turnon-point
D)hydrogen-flash
E)horizontal-branch

Question

Quizplus · Accepted Answer

The horizontal-branch stars are giant stars that have left the main sequence and are fusing helium in their cores and shells. They are characterized by a relatively stable luminosity and temperature.

The _________ Stars Are Giant Stars Fusing Helium in Their