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The astronomical unit (symbol au, or ua) is a unit of length, roughly the distance from Earth to the Sun. However, that distance varies as Earth orbits the Sun, f ..more definition+
A variant of the point, equal to 0.3759 mm, or 1/72 of a French Royal inch (27.07 mm), or about 1/68 inch. Didot points are used in Europe. This unit is named after the French printer François Ambroise Didot (1730 - 1804) who defined the "point-based" typographical measurement system.
In relation to the base unit of [length] => (meters), 1 Astronomical Unit (au) is equal to 149597870700 meters, while 1 Didot Points (didot point) = 0.000375972222 meters.| 3975803844 Astronomical Unit | to common length units |
|---|---|
| 3975803844 au | = 5.9477178938327E+20 meters (m) |
| 3975803844 au | = 5.9477178938328E+17 kilometers (km) |
| 3975803844 au | = 5.9477178938327E+22 centimeters (cm) |
| 3975803844 au | = 1.951351015037E+21 feet (ft) |
| 3975803844 au | = 2.3416212180444E+22 inches (in) |
| 3975803844 au | = 6.5045033834566E+20 yards (yd) |
| 3975803844 au | = 3.6957405587822E+17 miles (mi) |
| 3975803844 au | = 62865.636759674 light years (ly) |
| 3975803844 au | = 2.2479566525298E+24 pixels (PX) |
| 3975803844 au | = 3.7173236836455E+55 planck length (pl) |