Cepheids and globular clusters are limited in their ability to measure the distance to galaxies because they ____.
A) are too rare
B) are not bright enough to detect at large distances
C) behave differently in other galaxies than they do in our own
D) do not appear in dwarf galaxies
E) are only found in elliptical galaxies

Question

Quizplus · Accepted Answer

Cepheids and globular clusters are not bright enough to be detected at the very large distances of faraway galaxies, limiting their usefulness in measuring those distances.

Cepheids and Globular Clusters Are Limited in Their Ability to Measure