Constants & Units · constant
Parsec
pc = 3.085 677 581 49 × 10¹⁶ m
- Unit
- m
- Value
- 3.085 677 581 49 × 10¹⁶
- Exact
- yes
- Note
- The distance at which 1 au subtends one arcsecond — parallax made into a unit. 3.26 light-years.
- Symbol
- pc
- Category
- Astronomical
- Numeric
- 30856775814913670
- Uncertainty
- exact (648000/π au)
Open on the Constants & Units shelf — the interactive card, the filters, and everything alongside it.