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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+
The palm may be either one of two obsolete non-SI units of measurement of length.
In English usage the palm, or small palm, also called handbreadth or handsbreadth, was ..more definition+
In relation to the base unit of [length] => (meters), 1 Siriometer (sir) is equal to 1.496E+17 meters, while 1 Palms (palm) = 0.0762 meters.| 17800 Siriometer | to common length units |
|---|---|
| 17800 sir | = 2.66288E+21 meters (m) |
| 17800 sir | = 2.66288E+18 kilometers (km) |
| 17800 sir | = 2.66288E+23 centimeters (cm) |
| 17800 sir | = 8.7364829396325E+21 feet (ft) |
| 17800 sir | = 1.0483779527559E+23 inches (in) |
| 17800 sir | = 2.9121609798775E+21 yards (yd) |
| 17800 sir | = 1.654636920385E+18 miles (mi) |
| 17800 sir | = 281458.61959624 light years (ly) |
| 17800 sir | = 1.0064429614416E+25 pixels (PX) |
| 17800 sir | = 1.6643E+56 planck length (pl) |