What is an Astronomical Unit (AU)?
An Astronomical Unit (AU) is a unit of length*.
1AU is defined as the average (mean) distance between the Earth and the Sun. In more familiar terms, one Astronomical Unit is roughly equal to 150 million** kilometres, or 93 million*** miles.
Have a question about this topic? Comment below! Got an astronomy related question of your own? Ask it here.
*Centimetres, kilometres, miles, inches and feet are all units of length
** That's 150,000,000
*** 93,000,000
1AU is defined as the average (mean) distance between the Earth and the Sun. In more familiar terms, one Astronomical Unit is roughly equal to 150 million** kilometres, or 93 million*** miles.
Have a question about this topic? Comment below! Got an astronomy related question of your own? Ask it here.
*Centimetres, kilometres, miles, inches and feet are all units of length
** That's 150,000,000
*** 93,000,000
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