If you wanted to measure the distance to a galaxy,what kind of objects within it could you observe?
A)large globular clusters
B)Herbig-Haro objects
C)Cepheid variable stars
D)dust lanes

Question

Quizplus · Accepted Answer

Cepheid variable stars have a well-defined relationship between their period of variability and their luminosity, making them useful for determining distances to galaxies. The other choices (A, B, and D) are not as useful for distance measurements.

If You Wanted to Measure the Distance to a Galaxy,what