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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.| 191000 Siriometer | to common length units |
|---|---|
| 191000 sir | = 2.85736E+22 meters (m) |
| 191000 sir | = 2.85736E+19 kilometers (km) |
| 191000 sir | = 2.85736E+24 centimeters (cm) |
| 191000 sir | = 9.3745406824147E+22 feet (ft) |
| 191000 sir | = 1.1249448818898E+24 inches (in) |
| 191000 sir | = 3.1248468941382E+22 yards (yd) |
| 191000 sir | = 1.7754811898513E+19 miles (mi) |
| 191000 sir | = 3020145.8619596 light years (ly) |
| 191000 sir | = 1.0799472226705E+26 pixels (PX) |
| 191000 sir | = 1.78585E+57 planck length (pl) |