Convert astronomical unit to a.u. of length
Please provide values below to convert astronomical unit [AU, UA] to a.u. of length [a.u., b], or Convert a.u. of length to astronomical unit.
How to Convert Astronomical Unit to A.u. Of Length
1 AU, UA = 2.82698984097859e+21 a.u., b
Example: convert 15 AU, UA to a.u., b:
15 AU, UA = 15 × 2.82698984097859e+21 a.u., b = 4.24048476146789e+22 a.u., b
Astronomical Unit to A.u. Of Length Conversion Table
| astronomical unit | a.u. of length |
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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.
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.