**Precession (disambiguation)**

**Precession** refers to a specific change in the direction of the rotation axis of a rotating object, in which the second Euler angle (angle of nutation) is constant

**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

Read more about Precession (disambiguation): See Also

### Other articles related to "precession":

Precession (disambiguation) - See Also

... required for one complete cycle of the

... 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 ...### Famous quotes containing the word precession:

“But how is one to make a scientist understand that there is something unalterably deranged about differential calculus, quantum theory, or the obscene and so inanely liturgical ordeals of the *precession* of the equinoxes.”

—Antonin Artaud (1896–1948)

Main Site Subjects