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Suppose the earth produced as much energy per kilogram each second as the sun does. what would be the total energy output of earth be? how would the absolute magnitudes compare between the sun and earth

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- Thread starter Kiwithepike
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Suppose the earth produced as much energy per kilogram each second as the sun does. what would be the total energy output of earth be? how would the absolute magnitudes compare between the sun and earth

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tiny-tim

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Hi Kiwithepike ! Welcome to PF!

Tell us what

How does absolute magnitude depend on total energy?

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Its the measure of the absolute magnitude of luminosity at 10pc.

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tiny-tim

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eg, if you double the energy, what does that do to the absolute magnitude?

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then, L(s)/(s)= x/m(e) yields

1.42E21 W?

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it doubles as well

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tiny-tim

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it doubles as well

No, absolute magnitude is

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is this correct. M1-M2=2.5log(L1/L2) =>

4.8-M1=2.5log(3E-6) =>

4.8-M1=-13.8 =>

M1=18.6?

And thank you so much for the help and patience with me!

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