Which positional error increases when sextant mirrors lose perpendicularity to the frame in maritime navigation?

💡 Explanation

When frame perpendicularity is lost, side error occurs because the reflected image is skewed, especially near the horizon where small altitude changes have a large impact. Therefore altitude errors are magnified near the horizon, rather than causing compass bearing anomalies, lunar distance errors (atmospheric), or latitude errors alone (celestial body declination related).

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