An alien astronomer is observing our Sun as a flat disk with a temperature of 5800 kelvins when Jupiter passes in front of it. Given that the Sun has a radius of approximately 430,000 miles and Jupiter has a radius of approximately 43,000 miles and that Jupiter contributes negligible brightness to the system, then, to one significant figure, by what percentage does the brightness of the disk drop when Jupiter passes in front of the Sun?
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