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MCQBeginnerStars & Stellar Evolution
BAAO — 2020 Astronomy & Astrophysics Challenge
Question 2
Which well-known star dropped in brightness by 40% between October 2019 and April 2020, leading to speculation it may be about to go supernova?
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Source
Source: British Astronomy and Astrophysics Olympiad (BAAO), Astronomy & Astrophysics Challenge 2020. Question text, answer-choice text, and answer were transcribed from the official BAAO paper and solutions PDFs; the explanation and metadata are original.