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Which navigation outcome arises, because a sextant’s mirrors exhibit parallax error at high angles?

A)Declination precision strongly decreases
B)Observed altitude needs correction
C)Loxodrome course computation becomes invalid
D)Longitude accuracy sees little decline

💡 Explanation

Parallax error influences altitude measurement, because the Optical superposition mechanism causes a displacement. Therefore the observed angle requires trigonometric adjustments, rather than affecting declination directly, given loxodromes do not depend on instruments.

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