Precession

Highlights

• ›A ~25,772-year wobble that moves the poles and equinoxes

Related systems & concepts

• Nutation
• Precession of the Equinoxes
• The Ecliptic & Equinox
• The Equatorial Coordinate System

Across the reference systems

• Nutation
• Earth Orientation Parameters

Knowledge connections

• Associated withNutation
• Associated withPrecession of the Equinoxes
• Associated withThe Ecliptic & Equinox
• Associated withThe Equatorial Coordinate System
• Associated withNutation
• Associated withEarth Orientation Parameters

Sources

Facts on this topic will be cited from these primary and reference sources.

• IAUInternational Astronomical Union

  Official naming, definitions, constellation boundaries, and astronomical nomenclature.