Definitions
There is 1 meaning of the phrase
Astronomical Unit.
Astronomical Unit - as a noun
A unit of length used for distances within the solar system; equal to the mean distance between the earth and the sun (approximately 93 million miles or 150 million kilometers)
Synonyms (Exact Relations)
auExample Sentences
"An astronomical unit is a unit of length equal to the average distance from the Earth to the Sun, approximately 93 million miles."
"Scientists use the astronomical unit to measure distances within our solar system."
"One astronomical unit is equivalent to about 150 million kilometers."
"The spacecraft Voyager 1 is about 141 astronomical units away from Earth."
"The astronomical unit is often abbreviated as AU."
