If one star appears brighter than another in the night sky, then the brighter star
A) must be the closer star.
B) must be the bigger star.
C) must be the hotter star.
D) must be the redder star.
E) cannot be compared to a dimmer star without more information.

Question

Quizplus · Accepted Answer

The apparent brightness of a star depends on its intrinsic luminosity and its distance from Earth. Without additional information, we cannot determine which factor is causing one star to appear brighter than another.

If One Star Appears Brighter Than Another in the Night