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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 Light Days (ld) is equal to 25900000000000 meters, while 1 Bohr Radius (Bohr) = 5.29177E-11 meters.| 20950 Light Days | to common length units |
|---|---|
| 20950 ld | = 542605000000000000 meters (m) |
| 20950 ld | = 542605000000000 kilometers (km) |
| 20950 ld | = 5.42605E+19 centimeters (cm) |
| 20950 ld | = 1.7802001312336E+18 feet (ft) |
| 20950 ld | = 2.1362401574803E+19 inches (in) |
| 20950 ld | = 5.9340004374453E+17 yards (yd) |
| 20950 ld | = 3.3715911576394E+14 miles (mi) |
| 20950 ld | = 57.351759856252 light years (ly) |
| 20950 ld | = 2.0507908095484E+21 pixels (PX) |
| 20950 ld | = 3.39128125E+52 planck length (pl) |