Last modified on 12 July 2016, at 21:08

Astronomical unit

The astronomical unit is a unit of measurement equivalent to (AU) the mean distance between the Sun and Earth. The AU is used widely in expressing distances in the solar system. 1 AU = 149,597,870.691 km,[1] or approximately 93 million miles.

References

  1. The IAU and astronomical units - International Astronomical Union site