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The Bohr radius (a0 or rBohr) is a physical constant, approximately equal to the most probable distance between the proton and electron in a hydrogen atom in its ground state. It is named after Niels Bohr, due to its role in the Bohr model of an atom. Its value is 5.2917721067×10^−11 m.
In relation to the base unit of [length] => (meters), 1 Exameters (Em) is equal to 1000000000000000000 meters, while 1 Bohr Radius (Bohr) = 5.29177E-11 meters.| 489000 Exameters | to common length units |
|---|---|
| 489000 Em | = 4.89E+23 meters (m) |
| 489000 Em | = 4.89E+20 kilometers (km) |
| 489000 Em | = 4.89E+25 centimeters (cm) |
| 489000 Em | = 1.6043307086614E+24 feet (ft) |
| 489000 Em | = 1.9251968503937E+25 inches (in) |
| 489000 Em | = 5.3477690288714E+23 yards (yd) |
| 489000 Em | = 3.0385051300406E+20 miles (mi) |
| 489000 Em | = 51685868.301448 light years (ly) |
| 489000 Em | = 1.8481892092207E+27 pixels (PX) |
| 489000 Em | = 3.05625E+58 planck length (pl) |