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04-29-2008, 01:36 AM
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| More astronomy help...? Looking through historical records of the quasar 3C50, which is at a distance of 570 Mpc, you discover that it underwent a brightening beginning in 1925 and lasting for 11 years before fading back to its original brightness. At its maximum brightness, it was 17 times brighter than it is normally. What is the largest possible size of the region that underwent the outburst? Express your answer in light years: diameter < c x change in time      |
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