Astronomers examine the relationship between _________ and distance to figure out how far a star is from Earth when the star is more than 500 light-years away.
A)apparent brightness
B)magnitude
C)composition
D)temperature

Question

Quizplus · Accepted Answer

Astronomers use the apparent brightness of a star, which is how bright it appears from Earth, to figure out its distance. This is because the farther away a star is, the dimmer it appears from Earth. Magnitude, composition, and temperature can also provide information about a star, but they are not as directly related to determining its distance.

Astronomers Examine the Relationship Between _________ and Distance to Figure