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MCQIntermediateCelestial Coordinates & Time

USAAAO — 2017 First Round

Question 12

The following series of photos were taken on March 17 around noon time (each photo taken about 3 minutes apart from the previous one). In each photo you can see a white vertical pole (about 1 foot high), and a piece of paper at the base of the pole. Notice how the shadow cast by the pole on the piece of paper is slowly disappearing. Based on the date and time, and the length of the pole’s shadow, where were the photos taken?

Figure for USAAAO 2017 question 12

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Source

Source: USAAAO 2017 First Round, Question 12. The question depends on the source photos printed on page 8.