Magnetic Variation
Magnetic Variation, also known as magnetic declination, is the angle between magnetic north (the direction the compass needle points) and true north. This angle varies depending on the location and changes over time due to the movement of the Earth's magnetic poles. Pilots must take magnetic variation into account when navigating using a compass, as failure to do so can result in significant navigational errors. Magnetic variation is typically shown on aeronautical charts and can be updated using current information provided by the appropriate aviation authority.
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