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 in one second, and is equal to exactly 2997 ..more definition+
A variant of the point, equal to 0.3759 mm, or 1/72 of a French Royal inch (27.07 mm), or about 1/68 inch. Didot points are used in Europe. This unit is named after the French printer François Ambroise Didot (1730 - 1804) who defined the "point-based" typographical measurement system.
In relation to the base unit of [length] => (meters), 1 Light Seconds (ls) is equal to 299800000 meters, while 1 Didot Points (didot point) = 0.000375972222 meters.| 1 Light Seconds | to common length units |
|---|---|
| 1 ls | = 299800000 meters (m) |
| 1 ls | = 299800 kilometers (km) |
| 1 ls | = 29980000000 centimeters (cm) |
| 1 ls | = 983595800.52493 feet (ft) |
| 1 ls | = 11803149606.299 inches (in) |
| 1 ls | = 327865266.84164 yards (yd) |
| 1 ls | = 186287.08343275 miles (mi) |
| 1 ls | = 3.1687982242892E-8 light years (ly) |
| 1 ls | = 1133102504957.8 pixels (PX) |
| 1 ls | = 1.87375E+43 planck length (pl) |
| Light Seconds | to Didot Points (table conversion) |
|---|---|
| 1 ls | = 797399335528.57 didot point |
| 2 ls | = 1594798671057.1 didot point |
| 3 ls | = 2392198006585.7 didot point |
| 4 ls | = 3189597342114.3 didot point |
| 5 ls | = 3986996677642.8 didot point |
| 6 ls | = 4784396013171.4 didot point |
| 7 ls | = 5581795348700 didot point |
| 8 ls | = 6379194684228.6 didot point |
| 9 ls | = 7176594019757.1 didot point |
| 10 ls | = 7973993355285.7 didot point |
| 20 ls | = 15947986710571 didot point |
| 30 ls | = 23921980065857 didot point |
| 40 ls | = 31895973421143 didot point |
| 50 ls | = 39869966776428 didot point |
| 60 ls | = 47843960131714 didot point |
| 70 ls | = 55817953487000 didot point |
| 80 ls | = 63791946842286 didot point |
| 90 ls | = 71765940197571 didot point |
| 100 ls | = 79739933552857 didot point |
| 200 ls | = 1.5947986710571E+14 didot point |
| 300 ls | = 2.3921980065857E+14 didot point |
| 400 ls | = 3.1895973421143E+14 didot point |
| 500 ls | = 3.9869966776428E+14 didot point |
| 600 ls | = 4.7843960131714E+14 didot point |
| 700 ls | = 5.5817953487E+14 didot point |
| 800 ls | = 6.3791946842286E+14 didot point |
| 900 ls | = 7.1765940197571E+14 didot point |
| 1000 ls | = 7.9739933552857E+14 didot point |
| 2000 ls | = 1.5947986710571E+15 didot point |
| 4000 ls | = 3.1895973421143E+15 didot point |
| 5000 ls | = 3.9869966776428E+15 didot point |
| 7500 ls | = 5.9804950164643E+15 didot point |
| 10000 ls | = 7.9739933552857E+15 didot point |
| 25000 ls | = 1.9934983388214E+16 didot point |
| 50000 ls | = 3.9869966776428E+16 didot point |
| 100000 ls | = 7.9739933552857E+16 didot point |
| 1000000 ls | = 7.9739933552857E+17 didot point |
| 1000000000 ls | = 7.9739933552857E+20 didot point |