 Zeta Draconis A is a giant star with a stellar classification of B6 III.Compared to the Sun, this star is about 2.5 times larger, 3.5 times more massive, and is radiating 148 times as much luminosity.This energy is being emitted from the star's outer envelope at an effective temperature of nearly 13,400 K. The azimuthal rotation velocity along the equator is at least 55 km/s.