A young protostar is _________ than the Sun even though its surface temperature is _________.
A) less luminous; hotter
B) larger; cooler
C) smaller; the same
D) more luminous; cooler
E) smaller; hotter

Question

Quizplus · Accepted Answer

A young protostar is still undergoing gravitational contraction and releasing a large amount of energy in the process, making it more luminous than the Sun. However, it is also cooler due to its larger size, which means its surface temperature is lower than that of the Sun.

A Young Protostar Is _________ Than the Sun Even Though