Convert a.u. of length to Earth's equatorial radius
Enter a value below to convert a.u. of length [a.u., b] to Earth's equatorial radius [R_e]. Reverse conversion: Convert Earth's equatorial radius to a.u. of length.
1 a.u., b = 8.2967e-18 R_e. To convert a.u. of length to Earth's equatorial radius, multiply the value by 8.2967e-18; to go the other way, divide by it (1 R_e = 1.2053e+17 a.u., b). Both units measure length and appear in everyday as well as technical calculations, so switching between them quickly is often useful.
A.u. Of Length to Earth's Equatorial Radius: Quick Reference
- 1 a.u., b = 8.2967e-18 R_e
- 1 R_e = 1.2053e+17 a.u., b
- 10 a.u., b = 8.2967e-17 R_e
- 100 a.u., b = 8.2967e-16 R_e
How to Convert A.u. Of Length to Earth's Equatorial Radius
1 a.u., b = 8.29673694685454e-18 R_e
Example: convert 15 a.u., b to R_e:
15 a.u., b = 15 × 8.29673694685454e-18 R_e = 1.24451054202818e-16 R_e
A.u. Of Length to Earth's Equatorial Radius Conversion Table
| a.u. of length | Earth's equatorial radius |
|---|---|
| 1 a.u., b | 8.2967e-18 R_e |
| 2 a.u., b | 1.6593e-17 R_e |
| 3 a.u., b | 2.4890e-17 R_e |
| 5 a.u., b | 4.1484e-17 R_e |
| 10 a.u., b | 8.2967e-17 R_e |
| 20 a.u., b | 1.6593e-16 R_e |
| 50 a.u., b | 4.1484e-16 R_e |
| 100 a.u., b | 8.2967e-16 R_e |
| 500 a.u., b | 4.1484e-15 R_e |
| 1000 a.u., b | 8.2967e-15 R_e |
A.u. Of Length: Definition and Use
The atomic unit of length, also known as the Bohr radius (a₀), is 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 where the electron orbits the nucleus at specific distances. The Bohr radius is the most probable distance between the proton and electron in a hydrogen atom in its ground state.
Current Use
The atomic unit of length is used in atomic physics to simplify calculations and equations.
Earth's Equatorial Radius: Definition and Use
The Earth's equatorial radius is the distance from the center of the Earth to the equator, approximately 6,378.1 kilometers.
History/Origin
The size and shape of the Earth have been a subject of study since ancient times. Modern measurements are made using satellite geodesy.
Current Use
The Earth's equatorial radius is a fundamental parameter in geodesy, geophysics, and astronomy. It is used in cartography and for defining the shape of the Earth.
A.u. Of Length to Earth's Equatorial Radius: Frequently Asked Questions
What is 1 a.u. of length in Earth's equatorial radius?
1 a.u. of length (a.u., b) = 8.2967e-18 Earth's equatorial radius (R_e).
How do you convert a.u. of length to Earth's equatorial radius?
Multiply the a.u. of length value by 8.2967e-18. For example, 25 a.u., b × 8.2967e-18 = 2.0742e-16 R_e.
What is 10 a.u. of length in Earth's equatorial radius?
10 a.u., b = 8.2967e-17 R_e.
Which unit is larger, the a.u. of length or the Earth's equatorial radius?
The Earth's equatorial radius is the larger unit: 1 a.u., b equals only 8.2967e-18 R_e.