3. A Cepheid variable in the Andromeda galaxy has a period of 22 days and a mean apparent magnitude of 19.5. Calculate the distance to the Andromeda galaxy.

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3. A Cepheid variable in the Andromeda galaxy has a period of 22 days and a mean apparent magnitude of 19.5. Calculate the
distance to the Andromeda galaxy.
Transcribed Image Text:3. A Cepheid variable in the Andromeda galaxy has a period of 22 days and a mean apparent magnitude of 19.5. Calculate the distance to the Andromeda galaxy.
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