The diagram shows how the Sun compares to other stars in the universe.

Question

Which statement best explains why the Sun appears to be brighter as viewed from Earth than the other stars?

A.
The Sun is bigger than other stars.
B.
The Sun is younger than other stars.
C.
The Sun is hotter than other stars.
D.
The Sun is closer to Earth than other stars.

Answer 1

The correct answer is:

D. The Sun is closer to Earth than other stars.

While the Sun may also be bigger and hotter than many stars, the primary reason it appears much brighter than other stars is its proximity to Earth, as it is the nearest star to our planet.