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The siriometer is a rarely used and an obsolete astronomical unit of length, defined to be equal to about one million astronomical units (au). One siriometer is approxim ..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 Siriometer (sir) is equal to 1.496E+17 meters, while 1 Fermi (fermi) = 1.0E-15 meters.| 859000000000 Siriometer | to common length units |
|---|---|
| 859000000000 sir | = 1.285064E+29 meters (m) |
| 859000000000 sir | = 1.285064E+26 kilometers (km) |
| 859000000000 sir | = 1.285064E+31 centimeters (cm) |
| 859000000000 sir | = 4.2160892388451E+29 feet (ft) |
| 859000000000 sir | = 5.0593070866142E+30 inches (in) |
| 859000000000 sir | = 1.405363079615E+29 yards (yd) |
| 859000000000 sir | = 7.9850174978128E+25 miles (mi) |
| 859000000000 sir | = 13582750237818 light years (ly) |
| 859000000000 sir | = 4.856935415047E+32 pixels (PX) |
| 859000000000 sir | = 8.03165E+63 planck length (pl) |