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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.| 6335431022 Siriometer | to common length units |
|---|---|
| 6335431022 sir | = 9.477804808912E+26 meters (m) |
| 6335431022 sir | = 9.477804808912E+23 kilometers (km) |
| 6335431022 sir | = 9.477804808912E+28 centimeters (cm) |
| 6335431022 sir | = 3.1095160134226E+27 feet (ft) |
| 6335431022 sir | = 3.7314192161071E+28 inches (in) |
| 6335431022 sir | = 1.0365053378075E+27 yards (yd) |
| 6335431022 sir | = 5.8892348739064E+23 miles (mi) |
| 6335431022 sir | = 100177621910.07 light years (ly) |
| 6335431022 sir | = 3.5821628987589E+30 pixels (PX) |
| 6335431022 sir | = 5.92362800557E+61 planck length (pl) |