Celestial Navigation · Sextant Corrections — Dip
For a height of eye of 64 feet, the dip correction is closest to:
- A−9.7'
- B−6.8'
- C−7.8'✓ Correct
- D−4.9'
Explanation
Dip = 0.97 × √64 = 0.97 × 8 = 7.76' ≈ 7.8', subtracted from the sextant altitude.
Authority: Nautical Almanac, Dip table
Practice the full Celestial Navigation bank
Free spaced-repetition quizzing across 2550 USCG exam questions — it schedules your reviews so the ones you miss come back until they stick.
Related Celestial Navigation questions
- Sextant Corrections — Dip
The dip correction applied to a sextant altitude depends on the:
- Sextant Corrections — Dip
Your height of eye is 64 feet. Using dip ≈ 0.97 × √height (feet), what is the dip correction (and its sign)?
- Sextant Corrections — Dip
Your height of eye is 25 feet. Using dip ≈ 0.97 × √(height in feet), what is the dip correction (to the nearest 0.1')?
- Sextant Corrections — Dip
For a height of eye of 49 feet, the dip correction (0.97 × √height) is closest to:
- Sextant Corrections — Dip
For a height of eye of 16 feet, the dip correction (0.97 × √height) is closest to:
- Time
The Nautical Almanac tabulates the positions of celestial bodies against which time standard?