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Which phenomenon increased error aligning Byzantine sundials during equinox?

A)Atmospheric refraction errors increase sharply
B)Declination approximation errors are maximal
C)Equation of time reaches extremes
D)Instrumental parallax induces significant errors

💡 Explanation

Maximum *declination approximation* error occurs because ancient trigonometric calculations approximate the Sun's complex orbital path rather than use continuous functions; therefore declination measurements at the equinoxes deviate significantly, causing alignment error, rather than atmospheric effects.

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