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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 Roman Actus (actus) is equal to 35.5 meters, while 1 Bohr Radius (Bohr) = 5.29177E-11 meters.| 548700 Roman Actus | to common length units |
|---|---|
| 548700 actus | = 19478850 meters (m) |
| 548700 actus | = 19478.85 kilometers (km) |
| 548700 actus | = 1947885000 centimeters (cm) |
| 548700 actus | = 63906988.188976 feet (ft) |
| 548700 actus | = 766883858.26772 inches (in) |
| 548700 actus | = 21302329.396325 yards (yd) |
| 548700 actus | = 12103.596247912 miles (mi) |
| 548700 actus | = 2.0588574146496E-9 light years (ly) |
| 548700 actus | = 73620859668.77 pixels (PX) |
| 548700 actus | = 1.217428125E+42 planck length (pl) |