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MCQBeginnerExoplanets & Stellar Systems
USAAAO — 2022 First Round
Question 8
An exoplanet was observed during its transit across the surface of a bright star. Estimate the variation of the apparent magnitude (∆m) of the star caused by exoplanet's transit. During the transit, assume an Earth-based astronomer observes that the area covered by the exoplanet on the projected surface of the star represents η = 2% of the star's projected surface.
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Source
USAAAO 2022 First Round. Question text, choices, and answer were transcribed from the official USAAAO exam and solutions PDFs.