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MCQAdvancedTelescopes, Observing & Instrumentation
USAAAO — 2019 First Round
Question 11
Whether or not a diffraction-limited optical system can resolve two points as distinct can be determined by the Rayleigh criterion. β Pictoris b is located 19.44 pc away, and is located 9.2 AU from its host star. When viewing in infrared (λ = 1650 nm), what is the minimum telescope diameter that is able to resolve β Pictoris and its exoplanet?
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