What Does AU Stand For?
AU stands for Astronomical Unit
The Astronomical Unit (AU) is a standard unit of measurement used in astronomy to determine distances within our solar system. It is defined as the average distance from the Earth to the Sun, approximately 93 million miles or 150 million kilometers. The AU serves as a reference point for expressing distances to other celestial bodies, facilitating easier comparison and understanding of vast astronomical scales.
Added on 14th April 2008 | Last edited on 16th June 2025 | Edit Acronym