Which limitation hinders accurate prayer time determination when using a medieval astrolabe for differing longitudes?

💡 Explanation

When determining prayer times via astrolabe across differing longitudes, neglecting the time zone differences causes inaccurate results, because local solar time varies with longitude, affecting sunrise/sunset calculations, and thus prayer times. Therefore failing to correct for longitude gives wrong times, rather than grid, deformation or projection which are related to different accuracy problems.

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