Question

What is Astronomical unit​

Answer 1

Answer:

The astronomical unit is a unit of length, roughly the distance from Earth to the Sun and equal to about 150 million kilometres or ~8 light minutes. The actual distance varies by about 3% as Earth orbits the Sun, from a maximum to a minimum and back again once each year.

Explanation:

Unit of: Length

1 au or AU or AU in: is equal to

Metric (SI) units: 1.495978707×1011 m

Unit system: Astronomical system of units; (Accepted for use with the SI)

Symbol: au or AU or AU

Imperial & US units: 9.2956×107 mi

Astronomical units: 4.8481×10−6 pc; 1.5813×10−5 ly

Answer 2

An Astronomical Unit (AU) is the average distance between Earth and the Sun, which is about 93 million miles or 150 million kilometers. Astronomical units are usually used to measure distances within our Solar System.