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Home Q & A Board Science-Related Homework Help Physics
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doit_the_clown doit_the_clown
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7 years ago
What method is used to determine the distances of very remote galaxies?
A)   Measurement of the apparent magnitudes of Type Ia supernovae within them
B)   Comparison of their apparent and absolute magnitudes
C)   Measurement of the apparent brightness and period of Cepheid variable stars within the galaxies
D)   Measurement of the angular size of the galaxy and an assumption about the actual physical size of the galaxy
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Discovering the Universe

Discovering the Universe


Edition: 7th
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Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.

Albert Einstein
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discovererdiscoverer
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7 years ago
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4 years ago
thank you
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