If you can measure the apparent magnitude of a star and known the absolute magnitude of...

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If you can measure the apparent magnitude of a star and known the absolute magnitude of that type of star (e.g. RR Lyrae or C

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Answer 1

Answer #1

The correct option is first option because the difference of apparent magnitude of star and absolute magnitude of star is related to its distance as shown below:

x - X = 5 log(d/10)

where:

x is the apparent magnitude of the star.

X is the absolute magnitude of the star.

d is the distance between earth and the star.

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Answer 2

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