Why is it difficult to use the method of standard candles to find the distance to galaxies?
A) It is difficult to isolate the light of a single star from the galaxy.
B) There are no known standard candles outside of our galaxy.
C) Standard candles are too bright to be used for all but the farthest galaxies.
D) All of these choices are correct.

Question

Quizplus · Accepted Answer

It is difficult to isolate the light of a single star from the galaxy because galaxies contain many stars and other sources of light, making it challenging to identify and measure the light from a single standard candle accurately.

Why Is It Difficult to Use the Method of Standard