Theta Draconis
Theta Draconis is a fourth-magnitude star in the northern circumpolar constellation of Draco. Parallax measurements place it at an estimated distance of from Earth.In Chinese, 紫微左垣, meaning Left Wall of Purple Forbidden Enclosure, refers to an asterism consisting of θ Draconis, ι Draconis, η Draconis, ζ Draconis, υ Draconis, 73 Draconis, γ Cephei and 23 Cassiopeiae. Consequently, the Chinese name for θ Draconis itself is 紫微左垣二, representing 上宰, meaning The First Premier. 上宰 is westernized into Shang Tsae by R.H. Allen with meaning "the Minor Steward" but it was for η DraProperties
This star is 21% more massive than the Sun and has a radius 2.5 times the Sun's. It is radiating 8.7 times the luminosity of the Sun from its outer atmosphere at an effective temperature of 6,290 K. This temperature is what gives it the yellow-white hue of an F-type main sequence star with a stellar classification of F9 V.
