How much brighter or dimmer would a star of magnitude 3.0 be compared to another one of magnitude 5.0 at the same distance?

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    The first star would be 2.0 times brighter than the second one.
     The first star would be 15.8 times brighter than the second one.
     The first star would be 6.31 times dimmer than the second one.
     The first star would be 6.31 times brighter than the second one.
     The first star would be 2.0 times dimmer than the second one.
asked Sep 20, 2012 in Astronomy by anonymous
    

1 Answer

0 votes
The first star would be 6.31 times brighter than the second one.
answered Sep 22, 2012 by SkyStar ~Expert~ (2,855 points)



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