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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 Light Hours (lh) is equal to 1079000000000 meters, while 1 Astronomical Unit (au) = 149597870700 meters.| 21 Light Hours | to common length units |
|---|---|
| 21 lh | = 22659000000000 meters (m) |
| 21 lh | = 22659000000 kilometers (km) |
| 21 lh | = 2.2659E+15 centimeters (cm) |
| 21 lh | = 74340551181102 feet (ft) |
| 21 lh | = 8.9208661417323E+14 inches (in) |
| 21 lh | = 24780183727034 yards (yd) |
| 21 lh | = 14079649844.906 miles (mi) |
| 21 lh | = 0.0023949899587781 light years (ly) |
| 21 lh | = 8.5640325749962E+16 pixels (PX) |
| 21 lh | = 1.4161875E+48 planck length (pl) |