›› Convert square millimicron to square astronomical unit


square millimicron
square astronomical unit

›› More information from the unit converter

How many square millimicron in 1 square astronomical unit? The answer is 2.2379523E+40.
We assume you are converting between square millimicron and square astronomical unit.
You can view more details on each measurement unit:
square millimicron or square astronomical unit
The SI derived unit for area is the square meter.
1 square meter is equal to 1.0E+18 square millimicron, or 4.4683704831421E-23 square astronomical unit.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between square millimicrons and square astronomical units.
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›› Definition: Square astronomical unit

A square astronomical unit is defined as the area of a square with sides one astronomical unit in length.

The definition of a astronomical unit is as follows:

The astronomical unit (AU or au or a.u. or sometimes ua) is a unit of length. It is approximately equal to the mean distance between the Earth and Sun. The currently accepted value of the AU is 149 597 870 691 ± 30 metres (about 150 million kilometres or 93 million miles).

The symbol "ua" is recommended by the Bureau International des Poids et Mesures, but in the United States and other anglophone countries the reverse usage is more common. The International Astronomical Union recommends "au" and international standard ISO 31-1 uses "AU".


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