Dynamical parallax of the binary system α Dra determined in this work compared to the trigonometric parallaxes measured by dedicated space astrometric missions, HIPPARCOS, and Gaia. Distance determinations based on the geometric and radiative properties of the stars in α Dra using different bolometric corrections are also shown. The latest Gaia distance from the Gaia EDR3 is shown in the coloured strip for easy comparison.