Celestial Navigation · The Nautical Almanac
The 'v' correction in the Nautical Almanac is applied to:
- AThe sextant altitude reading
- BThe declination only
- CThe GHA (for the Moon and planets)✓ Correct
- DThe equation of time
Explanation
The v correction accounts for the non-uniform change in GHA of the Moon and planets between hourly entries and is applied to GHA. It is taken from the Increments and Corrections pages using the tabulated v value. (For Venus the v value can be negative.)
Authority: Nautical Almanac
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