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spayn [35]
3 years ago
13

The observational fact about a cepheid variable star that leads to a measurement of its distance from earth is that its period o

f variation is directly related to its
Geography
1 answer:
OleMash [197]3 years ago
3 0

Answer:

absolute brightness

Explanation:

The observational fact about a cepheid variable star that leads to a measurement of its distance from earth is that its period of variation is directly related to its absolute brightness

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