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A light-year (abbreviation: ly), sometimes referred to incorrectly as a light year, is a unit of length used informally to express astronomical distances. It is approxi ..more definition+
The light-second is a unit of length useful in astronomy, telecommunications and relativistic physics. It is defined as the distance that light travels in free space ..more definition+
In relation to the base unit of [length] => (meters), 1 Light Years (ly) is equal to 9461000000000000 meters, while 1 Light Seconds (ls) = 299800000 meters.| 139900 Light Years | to common length units |
|---|---|
| 139900 ly | = 1.3235939E+21 meters (m) |
| 139900 ly | = 1.3235939E+18 kilometers (km) |
| 139900 ly | = 1.3235939E+23 centimeters (cm) |
| 139900 ly | = 4.342499671916E+21 feet (ft) |
| 139900 ly | = 5.2109996062992E+22 inches (in) |
| 139900 ly | = 1.4474998906387E+21 yards (yd) |
| 139900 ly | = 8.2244311968106E+17 miles (mi) |
| 139900 ly | = 139900 light years (ly) |
| 139900 ly | = 5.0025602522911E+24 pixels (PX) |
| 139900 ly | = 8.272461875E+55 planck length (pl) |