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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 Zettameters (Zm) = 1.0E+21 meters.| 9991495535 Siriometer | to common length units |
|---|---|
| 9991495535 sir | = 1.494727732036E+27 meters (m) |
| 9991495535 sir | = 1.494727732036E+24 kilometers (km) |
| 9991495535 sir | = 1.494727732036E+29 centimeters (cm) |
| 9991495535 sir | = 4.9039623754462E+27 feet (ft) |
| 9991495535 sir | = 5.8847548505354E+28 inches (in) |
| 9991495535 sir | = 1.6346541251487E+27 yards (yd) |
| 9991495535 sir | = 9.2878075292542E+23 miles (mi) |
| 9991495535 sir | = 157988344999.05 light years (ly) |
| 9991495535 sir | = 5.6493653682451E+30 pixels (PX) |
| 9991495535 sir | = 9.342048325225E+61 planck length (pl) |