At its brightest, Venus, at magnitude - 4, is 100 times brighter than a 1st magnitude star.

Name: At its brightest, Venus, at magnitude - 4, is 100 times brighter than a 1st magnitude star.
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Question

Quizplus · Accepted Answer

The magnitude scale is logarithmic, where a difference of 5 magnitudes corresponds to a brightness factor of 100. Since Venus at magnitude -4 is 5 magnitudes brighter than a 1st magnitude star, it is indeed 100 times brighter.

At Its Brightest, Venus, at Magnitude - 4, Is 100