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← HistoryWhich 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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