The magnitude M of a star is a measure of how bright a star appears to the human eye. Betelgeuse is about 100 times brighter than Albiero. Use part (a) to show that Betelgeuse is 5 magnitudes less bright than Albiero.

The magnitude M of a star is a measure of how bright a star appears to the human eye.

Betelgeuse is about 100 times brighter than Albiero. Use part (a) to show that Betelgeuse is 5 magnitudes less bright than Albiero.

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