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MCQAdvancedCelestial Coordinates & Time
USAAAO — 2025 First Round
Question 18
Connor is stranded on an island and wishes to determine his latitude, but he only wakes up at sunrise and sunset. He constructs a vertical stick in the ground. On some day, he measures the angle between the shadows made at sunrise and sunset as 105°. Which of the following intervals of latitudes could Connor be in?
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Source
USAAAO 2025 First Round, Question 18. Question text, choices, and answer were transcribed from the official USAAAO exam and solutions PDFs.