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Help with astronomy homework?
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09-02-2008, 10:22 PM
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 Help with astronomy homework?
If I know the luminosity of two stars, 0.5 and 2.0 solar luminosities, how can I calculate the difference in absolute magnitudes of the two stars? can't use parallax. I get a differnce of -2.5log(2.0/0.5) = 1.5 but i'm not sure if this is right are you sure im right... have also thought that as there is a difference of 1.5 in luminosities, then the difference in magnitudes will be 2.512^1.5 = 4      |
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