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Question 40

From Physics HL Paper 1A (May 2025, TZ1)

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  1. A star has a parallax angle of 1×10−21 \times 10^{-2} arc-second at the orbit of the Earth.
    What is the distance from the Sun to the star?

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Mixed-topic question
25.2 Stellar Properties and the Hertzsprung-Russell DiagramStellar parallax and astronomical distance · legacy topic