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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+
In relation to the base unit of [length] => (meters), 1 Astronomical Unit (au) is equal to 149597870700 meters, while 1 Light Days (ld) = 25900000000000 meters.| 9900 Astronomical Unit | to common length units |
|---|---|
| 9900 au | = 1481018919930000 meters (m) |
| 9900 au | = 1481018919930 kilometers (km) |
| 9900 au | = 1.48101891993E+17 centimeters (cm) |
| 9900 au | = 4.8589859577756E+15 feet (ft) |
| 9900 au | = 5.8307831493307E+16 inches (in) |
| 9900 au | = 1.6196619859252E+15 yards (yd) |
| 9900 au | = 920262492002.95 miles (mi) |
| 9900 au | = 0.15653936369623 light years (ly) |
| 9900 au | = 5.5975525285609E+18 pixels (PX) |
| 9900 au | = 9.2563682495625E+49 planck length (pl) |