How to convert atomic units of length to light years
1 a.u. of length is equal to 5.593407533 × 10⁻²⁷ light years, and 1 light year is equal to 1.787818953 × 10²⁶ atomic units of length. To convert, multiply by the conversion factor:
light years = atomic units of length × 5.593407533 × 10⁻²⁷
light years = atomic units of length ÷ 1.787818953 × 10²⁶Example: convert 1 a₀ to ly: 1 × 5.593407533 × 10⁻²⁷ = 5.593407533 × 10⁻²⁷ ly.
A.u. of Length to Light Year conversion table
| A.u. of Length (a₀) | Light Year (ly) |
|---|---|
| 0.01 a₀ | 5.593407533 × 10⁻²⁹ ly |
| 0.1 a₀ | 5.593407533 × 10⁻²⁸ ly |
| 1 a₀ | 5.593407533 × 10⁻²⁷ ly |
| 2 a₀ | 1.118681507 × 10⁻²⁶ ly |
| 3 a₀ | 1.67802226 × 10⁻²⁶ ly |
| 5 a₀ | 2.796703766 × 10⁻²⁶ ly |
| 10 a₀ | 5.593407533 × 10⁻²⁶ ly |
| 20 a₀ | 1.118681507 × 10⁻²⁵ ly |
| 50 a₀ | 2.796703766 × 10⁻²⁵ ly |
| 100 a₀ | 5.593407533 × 10⁻²⁵ ly |
| 250 a₀ | 1.398351883 × 10⁻²⁴ ly |
| 500 a₀ | 2.796703766 × 10⁻²⁴ ly |
| 1,000 a₀ | 5.593407533 × 10⁻²⁴ ly |
About the a.u. of length
The atomic unit of length is the Bohr radius, about 5.29 × 10⁻¹¹ m: the most probable distance between the proton and electron in a hydrogen atom.
Symbol: a₀ · 1 a₀ = 5.291772109 × 10⁻¹¹ m · Category: Atomic & physics
About the light year
A light-year is the distance light travels in a vacuum in one Julian year (365.25 days): about 9.46 trillion km. The nearest star system, Alpha Centauri, is about 4.37 light-years away.
Symbol: ly · 1 ly = 9.460730473 × 10¹⁵ m · Category: Astronomical