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How did Edwin Hubble measure the distance to the Andromeda Galaxy?
Astronomy
Astronomy
wrote...
3 weeks ago
3 weeks ago
How did Edwin Hubble measure the distance to the Andromeda Galaxy?
How did Edwin Hubble measure the distance to the Andromeda Galaxy?
a. He measured its parallax.
b. He used white dwarf supernovae in the Andromeda Galaxy.
c. He deduced it from its redshift.
d. He used Cepheid variables in the Andromeda Galaxy.
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bio_man
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3 weeks ago
Quote from: Astronomy (3 weeks ago)
d. He used Cepheid variables in the Andromeda Galaxy.
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