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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.| 3600 Earth Circumference | to common length units |
|---|---|
| 3600 Ec | = 144000000000 meters (m) |
| 3600 Ec | = 144000000 kilometers (km) |
| 3600 Ec | = 14400000000000 centimeters (cm) |
| 3600 Ec | = 472440944881.89 feet (ft) |
| 3600 Ec | = 5669291338582.7 inches (in) |
| 3600 Ec | = 157480314960.63 yards (yd) |
| 3600 Ec | = 89477451.682176 miles (mi) |
| 3600 Ec | = 1.5220378395518E-5 light years (ly) |
| 3600 Ec | = 5.4425203707112E+14 pixels (PX) |
| 3600 Ec | = 9.0E+45 planck length (pl) |