Astronomical Units

Views Updated: Dec 15, 2025

Key Facts

Abbreviation
AU
Pronunciation
/ˌæstrəˈnɑmɪkəl ˈjunɪts/
Category
Miscellaneous
Related Field
Unit Measures

Examples in Context

  1. For the Earth, it is one because we work in astronomical units.
  2. A law stating that the ratio of the square of the revolutionary period ( in years ) to the cube of the orbital axis ( in astronomical units ) is the same for all planets.

Other meanings of AU

Australia Regional
Author Academic
Automatic Update Computing
Automatic Updates Computing
Atomic Units Misc
Astronomical Unit Gov
African Union Regional
American University Academic
African Unity Gov
AU (mobile phone company) Regional