Celestial Navigation · Navigational Triangle — Sides
In the navigational triangle, the side from the elevated pole to the celestial body is the:
- AZenith distance
- BCo-latitude
- CPolar distance (co-declination)✓ Correct
- DAzimuth
Explanation
The triangle's three sides are co-latitude (pole to zenith), polar distance or co-declination (pole to body), and zenith distance or co-altitude (zenith to body). The angle at the pole is the meridian angle/LHA, and the angle at the zenith is the azimuth angle.
Authority: Bowditch (Pub. No. 9), The Navigational Triangle
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