Celestial Navigation · Sextant Corrections — Dip
For a height of eye of 49 feet, the dip correction (0.97 × √height) is closest to:
- A−7.8'
- B−4.9'
- C−6.8'✓ Correct
- D−3.4'
Explanation
Dip = 0.97 × √49 = 0.97 × 7 = 6.79' ≈ 6.8', subtracted from the sextant altitude. Higher height of eye gives a larger dip.
Authority: Nautical Almanac, Dip table
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