Cepheid variables are useful in measuring the distance to ____.
A) globular clusters and dwarf galaxies around the Milky way, but nothing farther
B) globular clusters and the Andromeda Galaxy, but not more distant objects
C) galaxies that are within 30 megaparsecs, a relatively short distance
D) galaxies that are moderately far away, up to about 500 megaparsecs
E) galaxies and galactic clusters within a gigaparsec of the Milky Way

Question

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The Answer of Cepheid variables are useful in measuring the distance to ____.
A) globular clusters and dwarf galaxies around the Milky way, but nothing farther
B) globular clusters and the Andromeda Galaxy, but not more distant objects
C) galaxies that are within 30 megaparsecs, a relatively short distance
D) galaxies that are moderately far away, up to about 500 megaparsecs
E) galaxies and galactic clusters within a gigaparsec of the Milky Way

Cepheid Variables Are Useful in Measuring the Distance to ____