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.
1 R_p = 1.2013e+17 a.u.. To convert Earth's polar radius to Bohr radius, multiply the value by 1.2013e+17; to go the other way, divide by it (1 a.u. = 8.3246e-18 R_p). Both units measure length and appear in everyday as well as technical calculations, so switching between them quickly is often useful.
Quick Reference
- 1 R_p = 1.2013e+17 a.u.
- 1 a.u. = 8.3246e-18 R_p
- 10 R_p = 1.2013e+18 a.u.
- 100 R_p = 1.2013e+19 a.u.
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 |
|---|---|
| 1 R_p | 1.2013e+17 a.u. |
| 2 R_p | 2.4025e+17 a.u. |
| 3 R_p | 3.6038e+17 a.u. |
| 5 R_p | 6.0063e+17 a.u. |
| 10 R_p | 1.2013e+18 a.u. |
| 20 R_p | 2.4025e+18 a.u. |
| 50 R_p | 6.0063e+18 a.u. |
| 100 R_p | 1.2013e+19 a.u. |
| 500 R_p | 6.0063e+19 a.u. |
| 1000 R_p | 1.2013e+20 a.u. |
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.
Frequently Asked Questions
What is 1 Earth's polar radius in Bohr radius?
1 Earth's polar radius (R_p) = 1.2013e+17 Bohr radius (a.u.).
How do you convert Earth's polar radius to Bohr radius?
Multiply the Earth's polar radius value by 1.2013e+17. For example, 25 R_p × 1.2013e+17 = 3.0031e+18 a.u..
What is 10 Earth's polar radius in Bohr radius?
10 R_p = 1.2013e+18 a.u..
Which unit is larger, the Earth's polar radius or the Bohr radius?
The Earth's polar radius is the larger unit: 1 R_p = 1.2013e+17 a.u..