Celestial Navigation · Almanac — Increments for Sun
To find the sun's GHA at a time between the tabulated hours, you add to the hourly GHA the increment for the:
- AHeight of eye
- BDegrees of latitude
- CIndex error
- DMinutes and seconds, read from the yellow Increments and Corrections pages✓ Correct
Explanation
The daily page gives GHA at each whole hour; the increment for the additional minutes and seconds comes from the yellow pages and is added. The sun's increment uses the standard rate (15°/hour); there is no separate v correction for the sun.
Authority: Nautical Almanac, Increments and Corrections
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