precession Comparison Table

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precession comparison table

Subject has rate is an instance of has definition

apsidal motion precession Rotation of the line of apsides in the plane of the orbit; (in a binary) precession of the line of apsides due to mutual tidal distortion.

general precession 50".27 per year precession The sum of the lunisolar and the planetary precession. It causes the ecliptic longitude to increase at a constant rate but has no effect on ecliptic latitude.

geodetic precession 1".915 per century precession A small, relativistic, direct motion of the equinox along the ecliptic.

Lense-Thirring effect precession The precession of the plane of the geodesic orbit of a test particle around a rotating mass in general relativity. It arises from the coupling of the rotation of the central mass with the orbital angular momentum of the test particle. This precession is described as resulting from the dragging of inertial frames.

planetary precession 0".11 per year precession The component of general precession caused by the gravitational coupling between the center of mass of the Earth and that of the other planets. The effect of planetary precession is to move the equinox eastward by ≈ 0".11 / year and to diminish the angle between the ecliptic and the equator by about 0".47 / year.

vector translation prediction The small theoretical precession of the axis of an orbiting body due to the gravitational influence of its primary. This effect is predicted by general relativity, but so far it has not been observed.

Subject	has rate	is an instance of	has definition
apsidal motion		precession	Rotation of the line of apsides in the plane of the orbit; (in a binary) precession of the line of apsides due to mutual tidal distortion.
general precession	50".27 per year	precession	The sum of the lunisolar and the planetary precession. It causes the ecliptic longitude to increase at a constant rate but has no effect on ecliptic latitude.
geodetic precession	1".915 per century	precession	A small, relativistic, direct motion of the equinox along the ecliptic.
Lense-Thirring effect		precession	The precession of the plane of the geodesic orbit of a test particle around a rotating mass in general relativity. It arises from the coupling of the rotation of the central mass with the orbital angular momentum of the test particle. This precession is described as resulting from the dragging of inertial frames.
planetary precession	0".11 per year	precession	The component of general precession caused by the gravitational coupling between the center of mass of the Earth and that of the other planets. The effect of planetary precession is to move the equinox eastward by ≈ 0".11 / year and to diminish the angle between the ecliptic and the equator by about 0".47 / year.
vector translation		prediction	The small theoretical precession of the axis of an orbiting body due to the gravitational influence of its primary. This effect is predicted by general relativity, but so far it has not been observed.

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