Sigma Draconis V was the fifth planet in the Sigma Draconis planetary system. This was one of six planets in this system that was not classified as M class; the others were Sigma Draconis I, Sigma Draconis II, Sigma Draconis VII, Sigma Draconis VIII, and Sigma Draconis IX. (TOS: "Spock's Brain")

External link

• Sigma Draconis V at Memory Beta, the wiki for licensed Star Trek works