Which mechanism limited the accuracy of planetary positions projected by pre-17th-century astrolabes?

💡 Explanation

Astrolabe accuracy depended significantly on the precision of star catalogs; Ephemeris error occurred because planetary models and star positions in available hand-copied tables were often imprecise. Therefore the calculated planet's position suffered, rather than mechanical issues or environmental effects.

• Which effect limited accuracy of medieval astrolabes involving early pinhole cameras?
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• Which error increases when astrolabe alidade misaligned beyond manufacturer tolerance?
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• Which outcome occurred in Roman ballistae due to prolonged use?