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3 October, 01:50

At what distance must a star be to have its apparent magnitude equal to its absolute magnitude?

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  1. 3 October, 05:21
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    10 parsecs Another way to look at this is that the apparent magnitude (brightness from true distance) is brighter than the absolute magnitude (brightness from 10 parsecsaway). So Ross 128 must be closer than 10 parsecs, making star look brighter than it "really" is.
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