Precession (disambiguation)
From Wikipedia, the free encyclopedia
Precession refers to a change in the direction of the axis of a rotating object.
Precession may specifically mean:
- Precession (astronomy) — the precession of the Earth's axis of rotation (also known as the "precession of the equinoxes"), or similar
- de Sitter precession — a general relativistic correction to the precession of a gyroscope near a large mass such as the Earth
- Larmor precession — the precession of the magnetic moments of electrons, atomic nuclei, and atoms about an external magnetic field
- Lense-Thirring precession — a general relativistic correction to the precession of a gyroscope near a large rotating mass such as the Earth
- Precession (mechanical) — the process of one part rotating with respect to another due to fretting between the two
- Thomas precession — a special relativistic correction to the precession of a gyroscope in a rotating non-inertial frame
[edit] See also
- Axial tilt, also called axial inclination or obliquity, is the inclination angle of a planet's rotational axis in relation to a perpendicular to its orbital plane
- Conventional International Origin is a conventionally defined reference axis of the pole's average location over the year 1900
- Great year, also known as a Platonic year or Equinoctial cycle, is the time required for one complete cycle of the precession of the equinoxes
- Nutation is a slight irregular motion (etymologically a "nodding") in the axis of rotation of a largely axially symmetric object
- Polar motion is the movement of Earth's rotation axis across its surface
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