From Wikipedia, the free encyclopedia
Not to be confused with Procession.
Precession may specifically mean:
- Precession is the name of one of the Euler rotations
- Axial 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
Precession can also refer to change in the direction of an axis other than an axis of rotation:
- Apsidal precession, perihelion precession, or orbital precession, the rotation of the orbit of a celestial body
- 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
|This disambiguation page lists articles associated with the same title.
If an internal link led you here, you may wish to change the link to point directly to the intended article.