How to find the Declination and Zenith Distance using the Rational Horizon (PZX) diagram?

This video teaches mariners and students how to draw a rational horizon (PZX) diagram to find the declination and zenith distance of a celestial body (Sun, planets, star, and moon).

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Contents of this video will benefit mariners preparing for exams (written and oral examinations).
Mariners will also benefit by watching the following videos:
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Compass error using azimuth method (Sun – example 5):    • Compass error calculation (Azimuth method)...  
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