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← HistoryWhich error arises if the alidade pointer bends on an historical astrolabe?
A)Declination angle measurement inaccuracy✓
B)Celestial sphere projection distortion
C)Ecliptic coordinate system misalignment
D)Observer's latitude angle calculation drift
💡 Explanation
The alidade determines angles; deformation ruins that, because angular measurement precision depends on precise alignment reflecting accurate sighting angles. This causes declination inaccuracy, rather than distorting the projection because the plate is unaffected, or misaligning coordinate systems since they are engraved.
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