Inclination

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inclination

  1. (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°.

  2. The angle between the plane of the satellite orbit and the earth's equatorial plane.

    An inclination angle of less than 90° is referred to as a prograde orbit, while an inclination angle greater than 90° is called a retrograde orbit.

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