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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+
A unit of length used to measure nuclear distances, = 10−15 meter. Named for the Italian physicist Enrico Fermi (1901–1954). Now obsolete, replaced by the SI term femtometer (symbol, fm); 1 fermi = 1 femtometer.
In relation to the base unit of [length] => (meters), 1 Light Seconds (ls) is equal to 299800000 meters, while 1 Fermi (fermi) = 1.0E-15 meters.| 861000 Light Seconds | to common length units |
|---|---|
| 861000 ls | = 258127800000000 meters (m) |
| 861000 ls | = 258127800000 kilometers (km) |
| 861000 ls | = 2.581278E+16 centimeters (cm) |
| 861000 ls | = 8.4687598425197E+14 feet (ft) |
| 861000 ls | = 1.0162511811024E+16 inches (in) |
| 861000 ls | = 2.8229199475066E+14 yards (yd) |
| 861000 ls | = 160393178835.6 miles (mi) |
| 861000 ls | = 0.02728335271113 light years (ly) |
| 861000 ls | = 9.7560125676866E+17 pixels (PX) |
| 861000 ls | = 1.61329875E+49 planck length (pl) |