True bearing is the angle measured clockwise from true north to the direction of an object. It is distinct from magnetic bearing, which is measured from magnetic north, a constantly shifting point influenced by the Earth's magnetic field. True bearing remains fixed, providing an accurate and reliable reference for navigation.
Feature | True Bearing | Magnetic Bearing |
---|---|---|
Reference | True north | Magnetic north |
Accuracy | Fixed and unwavering | Can vary depending on geographical location and time |
True bearing is essential for precise navigation in marine environments. It allows mariners to accurately determine the direction to a destination or object, regardless of magnetic field distortions. Mariners can rely on true bearing to maintain their course and avoid hazards.
Application | True Bearing |
---|---|
Determining the direction to a waypoint | Ensures the most direct and efficient route |
Avoiding obstacles and shallow waters | Provides a clear indication of hazards and safe passages |
Establishing a reference line | Offers a fixed point for measuring angles and distances |
True bearing is expressed in degrees, ranging from 0° to 360°. To determine the true bearing of an object, follow these steps:
Pros:
Cons:
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