Explanation:
Astronomical unit is the one of the unit which is used to measure the average distance between the earth and the sun.
Mathematically, it can be written as :
1 AU = 149597870700 m
In other units, it is equal to :
1 AU = 92.956 million miles
or
1 AU = 15.8125 millionths of a light year
It can also be written in terms of astronomical constant as :
A³ = GM₀D² / k²
Where,
G is the gravitational constant
D is the time period of one day
M₀ is solar mass.
