Which navigation error grows significantly when utilizing sextants at higher latitudes?

💡 Explanation

When using sextants at higher latitudes, the angle to the horizon becomes shallower causing a greater atmospheric path length which amplifies refraction errors because atmospheric density changes. Therefore refraction errors become significant, rather than parallax, thermal, or timing errors, as they are less dependent on latitude.

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• Which structural risk increased with multistory aqueducts such as the Pont du Gard by overlapping arches?
• Which outcome affected image clarity in Alhazen's 11th-century experiments on spherical mirrors focusing sunlight?
• Which ecological consequence resulted from extensive ancient terraced maize cultivation in steep Andean valleys?
• Which mechanism limited maximum stone span achievable in Roman arch construction before concrete?