Geomagnetic Pole

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Geomagnetic Pole

</dt>
Either of two antipodal points marking the intersection of the earth's surface with the extended axis of a dipole assumed to be located at the center of the earth and approximating the source of the actual magnetic field of the earth. </dd>
That pole in the Northern Hemisphere (latitude, 78 1/2 degrees N; longitude, 69 degrees W) is designated north geomagnetic pole, and that pole in the Southern Hemisphere (latitude, 78 1/2 degrees S, longitude, 111 degrees E) is designated south geomagnetic pole. The great circle midway between these poles is called geomagnetic equator. The expression geomagnetic pole should not be confused with magnetic pole, which relates to the actual magnetic field of the earth. See geomagnetic latitude. </dd>

References

This article is based on NASA's Dictionary of Technical Terms for Aerospace Use