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Which outcome occurs during noon-time observations by medieval astrolabes?

A)Unreliable shadow projection occurs.
B)Reduced visual errors exist.
C)Increased instrument warping happens.
D)Celestial tracking is more precise.

💡 Explanation

Unreliable shadow projection occurs due to decreased shadow length midday; the increased solar angle causes reduced shadow resolution via shadow refraction, rather than sharp definition because astrolabes rely on accurate stellar occultation and altitudes; therefore, observations are less reliable rather than more suitable.

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