magnetic equator


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magnetic equator

[mag′ned·ik i′kwād·ər]
(geophysics)
That line on the surface of the earth connecting all points at which the magnetic dip is zero. Also known as aclinic line.

magnetic equator

A line drawn on a map or a chart connecting all points at which the magnetic inclination, or magnetic dip, is zero. A magnetic needle at these places balances horizontally without dipping. Also called an aclinic line
References in periodicals archive ?
Recently, however, researchers at Stanford University's Wilcox Solar Observatory, and a group of Alaskan and Japanese scientists (including the author), independently found that the Sun's magnetic equator begins to incline with respect to the heliographic equator as the sunspot cycle progresses.
This change of inclination of the magnetic equator can be represented by imagining a dipole (called the equivalent dipole) at the center of the Sun and rotating it 180 [degrees] end over end during the sunspot cycle.
If the outermost corona extends like a disk along the magnetic equator at sunspot minimum, there is no reason why it cannot do the same at sunspot maximum.