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Definitions from the Web

Astronomical Unit

Definition: An astronomical unit (AU) is a unit of measurement used in astronomy to represent the average distance between the Earth and the Sun.

Usage Examples:

1. As a noun:

   • The distance from the Earth to the Sun is approximately 1 astronomical unit.
   • Scientists use the astronomical unit to calculate distances within our solar system.

2. As an adjective:

   • The spacecraft Voyager 1 has traveled beyond the farthest reaches of the astronomical unit.
   • To study objects outside our solar system, telescopes often require high-precision astronomical unit measurements.

Related Products:

Find related products on Amazon: Astronomy Books or Telescopes