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MCQBeginnerObservational Astronomy & Telescopes
USAAAO — 2022 First Round
Question 27
An astronomer observes a galaxy in very foggy weather. So far, she has an image of signal-to- noise ratio of approximately 1, imaging for about 5 seconds. if she wants to reach a signal-to-noise ratio of 10. How long, in total, must she observe the galaxy for?
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Source
USAAAO 2022 First Round. Question text, choices, and answer were transcribed from the official USAAAO exam and solutions PDFs.