Amplitude vs. Azimuth: Two Methods, One Goal

A reliable compass is essential for safe navigation. Mariners use Amplitude and Azimuth observations to determine compass error and ensure accurate headings at sea.

Amplitude is observed at sunrise or sunset when the Sun is on the visible horizon.

Azimuth can be observed at almost any time using the Sun, Moon, planets, or stars, and generally provides greater accuracy.

Remember:

Compass Error = Variation + Deviation

Mastering these techniques helps improve navigational accuracy, enhances situational awareness, and supports safer voyage planning.

Know the method. Verify the compass. Navigate with confidence.

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