Stellar Parallax Calculator
Use the relation d(pc) = 1/p(arcsec) to convert between parallax angle and distance in parsecs and light-years. Click a known star to pre-fill.
Known Stars (click to use)
Proxima Centauri0.7421″
Alpha Centauri A0.7421″
Barnard's Star0.5490″
Sirius0.3804″
Vega0.1337″
Betelgeuse (approx)~0.015″