Polaris is 132 pc from Earth and has an average apparent magnitude of 2.0. What is the star’s average luminosity using the magnitude-distance formula? Based on your answer, is Polaris a type I Cepheid, a type II Cepheid, or a RR Lyrae? Is Polaris a giant or supergiant?

Applications and Investigations in Earth Science (9th Edition)
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ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
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Polaris is 132 pc from Earth and has an average apparent magnitude of 2.0. What is the star’s average luminosity using the magnitude-distance formula? Based on your answer, is Polaris a type I Cepheid, a type II Cepheid, or a RR Lyrae? Is Polaris a giant or supergiant?

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but the question wants us to find the average luminosity not the average magnitude.

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