Convert a.u. of length to astronomical unit
Please provide values below to convert a.u. of length [a.u., b] to astronomical unit [AU, UA], or Convert astronomical unit to a.u. of length.
1 a.u., b = 3.5373e-22 AU, UA. To convert a.u. of length to astronomical unit, multiply the value by 3.5373e-22; to go the other way, divide by it (1 AU, UA = 2.8270e+21 a.u., b). Both units measure length and appear in everyday as well as technical calculations, so switching between them quickly is often useful.
Quick Reference
- 1 a.u., b = 3.5373e-22 AU, UA
- 1 AU, UA = 2.8270e+21 a.u., b
- 10 a.u., b = 3.5373e-21 AU, UA
- 100 a.u., b = 3.5373e-20 AU, UA
How to Convert A.u. Of Length to Astronomical Unit
1 a.u., b = 3.53733142406284e-22 AU, UA
Example: convert 15 a.u., b to AU, UA:
15 a.u., b = 15 × 3.53733142406284e-22 AU, UA = 5.30599713609426e-21 AU, UA
A.u. Of Length to Astronomical Unit Conversion Table
| a.u. of length | astronomical unit |
|---|---|
| 1 a.u., b | 3.5373e-22 AU, UA |
| 2 a.u., b | 7.0747e-22 AU, UA |
| 3 a.u., b | 1.0612e-21 AU, UA |
| 5 a.u., b | 1.7687e-21 AU, UA |
| 10 a.u., b | 3.5373e-21 AU, UA |
| 20 a.u., b | 7.0747e-21 AU, UA |
| 50 a.u., b | 1.7687e-20 AU, UA |
| 100 a.u., b | 3.5373e-20 AU, UA |
| 500 a.u., b | 1.7687e-19 AU, UA |
| 1000 a.u., b | 3.5373e-19 AU, UA |
A.u. Of Length
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.
Astronomical Unit
The astronomical unit is a unit of length, now defined as exactly 149,597,870,700 meters. It is approximately the average distance between the Earth and the Sun.
History/Origin
Historically, the astronomical unit was the mean Earth-Sun distance. In 2012, the International Astronomical Union (IAU) redefined it as a fixed constant.
Current Use
The astronomical unit is used primarily for measuring distances within the Solar System or around other stars.
Frequently Asked Questions
What is 1 a.u. of length in astronomical unit?
1 a.u. of length (a.u., b) = 3.5373e-22 astronomical unit (AU, UA).
How do you convert a.u. of length to astronomical unit?
Multiply the a.u. of length value by 3.5373e-22. For example, 25 a.u., b × 3.5373e-22 = 8.8433e-21 AU, UA.
What is 10 a.u. of length in astronomical unit?
10 a.u., b = 3.5373e-21 AU, UA.
Which unit is larger, the a.u. of length or the astronomical unit?
The astronomical unit is the larger unit: 1 a.u., b equals only 3.5373e-22 AU, UA.