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MCQAdvancedCelestial Coordinates & Time
BAAO — 2023 Astronomy & Astrophysics Challenge
Question 10
On the 21st June the Sun sets in Guernsey (49.45° N, 2.59° W) at 21:00 BST (British Summer Time, BST = UT+1). At what time UT (approximately) did the Sun set as observed from Antananarivo, Madagascar (18.88° S, 47.51° E) on the same day?
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Source
Source: British Astronomy and Astrophysics Olympiad (BAAO), Astronomy & Astrophysics Challenge 2023. Question text, answer-choice text, and answer were transcribed from the official BAAO paper and solutions PDFs; the explanation and metadata are original.