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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+
In relation to the base unit of [length] => (meters), 1 Siriometer (sir) is equal to 1.496E+17 meters, while 1 Roman Actus (actus) = 35.5 meters.| 40000 Siriometer | to common length units |
|---|---|
| 40000 sir | = 5.984E+21 meters (m) |
| 40000 sir | = 5.984E+18 kilometers (km) |
| 40000 sir | = 5.984E+23 centimeters (cm) |
| 40000 sir | = 1.9632545931759E+22 feet (ft) |
| 40000 sir | = 2.355905511811E+23 inches (in) |
| 40000 sir | = 6.5441819772528E+21 yards (yd) |
| 40000 sir | = 3.7182852143482E+18 miles (mi) |
| 40000 sir | = 632491.27999154 light years (ly) |
| 40000 sir | = 2.2616695762733E+25 pixels (PX) |
| 40000 sir | = 3.74E+56 planck length (pl) |