From Glossary of Meteorology
(Redirected from Retrograde orbit)
- (Also called dip.) In terrestrial magnetism, the angle through which a freely suspended magnet would dip below the horizon in the magnetic north–south meridional plane; one of the magnetic elements.
At the aclinic line (dip equator) the inclination is zero; at either magnetic pole (dip pole) the inclination is 90°.