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MCQIntermediateTelescopes, Observing & Instrumentation
USAAAO — 2024 First Round
Question 9
Let’s assume that on an expedition mission to Mars, we take a telescope with 0.01 arcsecond angular resolution from earth. What is the ratio of the number of the stars we can measure the parallax distance to using this telescope on Mars compared to earth? The semimajor axis of Mars is 1.524 AU.
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Source
USAAAO 2024 First Round, Question 9. Question text, choices, and answer were transcribed from the official USAAAO exam and solutions PDFs.