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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 Earth Circumference (Ec) is equal to 40000000 meters, while 1 Bohr Radius (Bohr) = 5.29177E-11 meters.| 6782081399 Earth Circumference | to common length units |
|---|---|
| 6782081399 Ec | = 271283255960000000 meters (m) |
| 6782081399 Ec | = 271283255960000 kilometers (km) |
| 6782081399 Ec | = 2.7128325596E+19 centimeters (cm) |
| 6782081399 Ec | = 8.9003692900262E+17 feet (ft) |
| 6782081399 Ec | = 1.0680443148031E+19 inches (in) |
| 6782081399 Ec | = 2.9667897633421E+17 yards (yd) |
| 6782081399 Ec | = 1.6856760018989E+14 miles (mi) |
| 6782081399 Ec | = 28.673845889441 light years (ly) |
| 6782081399 Ec | = 1.0253226713855E+21 pixels (PX) |
| 6782081399 Ec | = 1.69552034975E+52 planck length (pl) |