A first-magnitude star is 100 times brighter than a sixth magnitude star, which means each difference in magnitude represents a brightness change of 2.51 times. Compare the brightness of Star X which has an apparent magnitude (m) of −5.8 to Star Y, which has an apparent magnitude of −12.9.

A first-magnitude star is 100 times brighter than a sixth magnitude star, which means each difference in magnitude represents a brightness change of 2.51 times. Compare the brightness of Star X which has an apparent magnitude (m) of −5.8 to Star Y, which has an apparent magnitude of −12.9.

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Question

A first-magnitude star is 100 times brighter than a sixth magnitude star, which means each difference in magnitude represents a brightness change of 2.51 times.

Compare the brightness of Star X which has an apparent magnitude (m) of −5.8 to Star Y, which has an apparent magnitude of −12.9.

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