The apparent magnitude of a star on earth was measured to be +2. The zenith angle was 45° and the optical depth To = 0.14. What is the apparent magnitude of the star above the earth's atmosphere? Round your answer to three significant figures.

The apparent magnitude of a star on earth was measured to be +2. The zenith angle was 45° and the optical depth To = 0.14. What is the apparent magnitude of the star above the earth's atmosphere? Round your answer to three significant figures.

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Question

The apparent magnitude of a star on earth
was measured to be +2. The zenith angle was
45° and the optical depth To = 0.14. What is
the apparent magnitude of the star above the
earth's atmosphere?
Round your answer to three significant
figures.

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