Convert light year to a.u. of length
Please provide values below to convert light year [ly] to a.u. of length [a.u., b], or Convert a.u. of length to light year.
How to Convert Light Year to A.u. Of Length
1 ly = 1.7878188244975e+26 a.u., b
Example: convert 15 ly to a.u., b:
15 ly = 15 × 1.7878188244975e+26 a.u., b = 2.68172823674625e+27 a.u., b
Light Year to A.u. Of Length Conversion Table
| light year | a.u. of length |
|---|
Light Year
A light-year is the distance that light travels in a vacuum in one Julian year.
History/Origin
The concept of the light-year as a unit of distance in astronomy emerged in the mid-19th century. The first recorded use of the term was in a German astronomical publication in 1851.
Current Use
The light-year is used to express distances to stars and other astronomical objects on a galactic and intergalactic scale, especially in popular science and non-specialist contexts.
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.