USCG USCG GENNAV
Set 1 • Question #3 of 246
Launch Interactive Practice Room When applying a dip correction to the sighted sextant angle (hs), you always subtract the dip because you are correcting __________.
A
hs to the visible horizon
B
hs to the sensible horizon
✓ Correct Answer
C
hs to the celestial horizon
D
Ho to the celestial horizon
USCG NMC Regulatory Explanation
Dip is the angular depression of the visible sea horizon below the true sensible (horizontal) plane due to the observer's height of eye ($Dip \approx 0.97 \times \sqrt{Height\ in\ feet}$). Dip is always subtracted from the sextant reading.
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