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MCQBeginnerSolar System & Planetary Science
USAAAO — 2023 First Round
Question 3
The radius of the Moon is about 4 times smaller than the radius of the Earth. The mean albedos of the Moon and the Earth are 0.12 and 0.36, respectively. The Mars Reconnaissance Orbiter took a picture of the Earth-Moon system. How many times brighter than the Moon did the Earth appear in the image?
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Source
USAAAO 2023 First Round. Question text, choices, and answer were transcribed from the official USAAAO exam and solutions PDFs.