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Suppose you see two stars that have the same apparent magnitude. If one star is actually four times as far away as the other star how much brighter would the farthest star really be?
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Suppose you see two stars that have the same apparent magnitude. If one star is actually four times as far away as the other star how much brighter would the farthest star really be?

User Quentin Revel
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you would have to divide the amount of light from the closer star by 4 to get the brightness of the farther star

User Ellockie
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