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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+
Plethron is a measurement used in Ancient times, equal to 100 Greek feet (pous). It was roughly the width of a typical athletic running-track, and was used as the st ..more definition+
In relation to the base unit of [length] => (meters), 1 Siriometer (sir) is equal to 1.496E+17 meters, while 1 Greek Plethron (pleth) = 30.8 meters.| 9000 Siriometer | to common length units |
|---|---|
| 9000 sir | = 1.3464E+21 meters (m) |
| 9000 sir | = 1.3464E+18 kilometers (km) |
| 9000 sir | = 1.3464E+23 centimeters (cm) |
| 9000 sir | = 4.4173228346457E+21 feet (ft) |
| 9000 sir | = 5.3007874015748E+22 inches (in) |
| 9000 sir | = 1.4724409448819E+21 yards (yd) |
| 9000 sir | = 8.3661417322835E+17 miles (mi) |
| 9000 sir | = 142310.5379981 light years (ly) |
| 9000 sir | = 5.088756546615E+24 pixels (PX) |
| 9000 sir | = 8.415E+55 planck length (pl) |