How to convert parsecs to atomic units of length
1 parsec is equal to 5.831085538 × 10²⁶ atomic units of length, and 1 a.u. of length is equal to 1.714946546 × 10⁻²⁷ parsecs. To convert, multiply by the conversion factor:
atomic units of length = parsecs × 5.831085538 × 10²⁶
atomic units of length = parsecs ÷ 1.714946546 × 10⁻²⁷Example: convert 1 pc to a₀: 1 × 5.831085538 × 10²⁶ = 5.831085538 × 10²⁶ a₀.
Parsec to A.u. of Length conversion table
| Parsec (pc) | A.u. of Length (a₀) |
|---|---|
| 0.01 pc | 5.831085538 × 10²⁴ a₀ |
| 0.1 pc | 5.831085538 × 10²⁵ a₀ |
| 1 pc | 5.831085538 × 10²⁶ a₀ |
| 2 pc | 1.166217108 × 10²⁷ a₀ |
| 3 pc | 1.749325661 × 10²⁷ a₀ |
| 5 pc | 2.915542769 × 10²⁷ a₀ |
| 10 pc | 5.831085538 × 10²⁷ a₀ |
| 20 pc | 1.166217108 × 10²⁸ a₀ |
| 50 pc | 2.915542769 × 10²⁸ a₀ |
| 100 pc | 5.831085538 × 10²⁸ a₀ |
| 250 pc | 1.457771384 × 10²⁹ a₀ |
| 500 pc | 2.915542769 × 10²⁹ a₀ |
| 1,000 pc | 5.831085538 × 10²⁹ a₀ |
About the parsec
A parsec is the distance at which one astronomical unit subtends an angle of one arcsecond: about 3.26 light-years (3.086 × 10¹⁶ m). Astronomers use it for distances to stars.
Symbol: pc · 1 pc = 3.085677581 × 10¹⁶ m · Category: Astronomical
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