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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.| 404000 Light Years | to common length units |
|---|---|
| 404000 ly | = 3.822244E+21 meters (m) |
| 404000 ly | = 3.822244E+18 kilometers (km) |
| 404000 ly | = 3.822244E+23 centimeters (cm) |
| 404000 ly | = 1.2540170603675E+22 feet (ft) |
| 404000 ly | = 1.5048204724409E+23 inches (in) |
| 404000 ly | = 4.1800568678915E+21 yards (yd) |
| 404000 ly | = 2.375032311302E+18 miles (mi) |
| 404000 ly | = 404000 light years (ly) |
| 404000 ly | = 1.4446278355437E+25 pixels (PX) |
| 404000 ly | = 2.3889025E+56 planck length (pl) |