dimontsho9767 dimontsho9767

16-05-2019
Geography

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How did edwin hubble measure the distance to the andromeda galaxy?

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lemickjac lemickjac

16-05-2019

Answer:

Through the period luminosity relation to Cepheid variables

Explanation:

The luminosity of a given Cepheid can be established when the period luminosity relationship is calibrated.

Their brightness is then used to find their distance

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