An astronomer observes that a star 12.5 light-years away moves through an angle of 0.2 in 1
Question:
An astronomer observes that a star 12.5 light-years away moves through an angle of 0.2" in 1 year. Assuming it moved in a straight line perpendicular to the initial line of observation, how many miles did the star move? (1 light-year = 5.88 ×1012mi.) Use Eq. (8.12).
Data from Eq. (8.12)
sinθ = tanθ = θ
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Related Book For 
Basic Technical Mathematics
ISBN: 9780137529896
12th Edition
Authors: Allyn J. Washington, Richard Evans
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