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What two properties of a Cepheid variable star do we need to know in order to calculate the approximate distance from Earth? (choose two) 1.) luminosity 2.) parallax 3.) color 4.) heat intensity 5.) exact
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What two properties of a Cepheid variable star do we need to know in order to calculate the approximate distance from Earth?

(choose two)

1.) luminosity

2.) parallax

3.) color

4.) heat intensity

5.) exact size

6.) apparent magnitude​

User IDroid
by
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1 Answer

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Answer:

4 and 6

Explanation:

User Celal Selcan
by
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