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Which consequence arises when sextant mirrors in 18th century naval navigation instruments undergo thermal distortion during sunny daytime oceanic voyages?

A)Compensated oscillation of horizon alignment
B)Systematic error within celestial angle sighting
C)Elimination of lens aberration effects
D)Improved corrosion resistance of bearing surfaces

💡 Explanation

Thermal distortion changes the angle of reflection, resulting in systematic error because the sextant relies on precise angular measurement via reflection. Therefore, readings become inaccurate, rather than improving alignment or resistance due to thermal changes.

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