Celestial Navigation · The Day's Work
A typical celestial 'day's work' at sea includes morning stars, a forenoon Sun line, Local Apparent Noon, an afternoon Sun line, and:
- AEvening stars✓ Correct
- BA midnight meridian sight
- CA lunar distance only
- DNo further observations
Explanation
The routine bookends the day with morning and evening star fixes (during twilight) and uses Sun lines and the noon latitude in between, with compass checks by amplitude/azimuth as opportunities arise.
Authority: Bowditch (Pub. No. 9), the day's work in celestial navigation
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