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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.| 6660670400 Siriometer | to common length units |
|---|---|
| 6660670400 sir | = 9.9643629184E+26 meters (m) |
| 6660670400 sir | = 9.9643629184E+23 kilometers (km) |
| 6660670400 sir | = 9.9643629184E+28 centimeters (cm) |
| 6660670400 sir | = 3.2691479391076E+27 feet (ft) |
| 6660670400 sir | = 3.9229775269291E+28 inches (in) |
| 6660670400 sir | = 1.0897159797025E+27 yards (yd) |
| 6660670400 sir | = 6.1915680664917E+23 miles (mi) |
| 6660670400 sir | = 105320398672.44 light years (ly) |
| 6660670400 sir | = 3.7660589003161E+30 pixels (PX) |
| 6660670400 sir | = 6.227726824E+61 planck length (pl) |