Convert Earth's polar radius to Bohr radius
Please provide values below to convert Earth's polar radius [R_p] to Bohr radius [a.u.], or Convert Bohr radius to Earth's polar radius.
How to Convert Earth's Polar Radius to Bohr Radius
1 R_p = 1.2012520889085e+17 a.u.
Example: convert 15 R_p to a.u.:
15 R_p = 15 × 1.2012520889085e+17 a.u. = 1.80187813336274e+18 a.u.
Earth's Polar Radius to Bohr Radius Conversion Table
| Earth's polar radius | Bohr radius |
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Earth's Polar Radius
The Earth's polar radius is the distance from the center of the Earth to the North or South Pole, approximately 6,356.8 kilometers.
History/Origin
The fact that the Earth is an oblate spheroid, flattened at the poles, has been known since the 18th century. Modern measurements are made with high precision.
Current Use
The Earth's polar radius is a key parameter in geodesy and is used to define the Earth's shape and gravitational field.
Bohr Radius
The Bohr radius is the most probable distance between the proton and the electron in a hydrogen atom in its ground state, approximately 5.29 x 10⁻¹¹ meters.
History/Origin
The Bohr radius is named after Niels Bohr, who proposed a model of the atom in 1913. It is the atomic unit of length.
Current Use
The Bohr radius is a fundamental constant in atomic physics and is used to simplify calculations and equations.