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← HistoryWhich error grows in astrolabe calculations when sights become oblique?
A)Index line parallax expands
B)Alidade shadow errors amplify✓
C)Mater plate warpage worsens
D)Star altitude estimations drift
💡 Explanation
Error increases because angular measurements degrade through increased alidade shadow length during oblique sightings. This leverages similar triangles because small variations influence angles calculations; therefore, shadow errors amplify rather than mechanical warpage dominating overall precision.
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