Rubicun III
Rubicun III was the inhabited third planet of the Rubicun star system. This planet was located somewhere in the Alpha or Beta Quadrant and was located in a star cluster. Classified as M class, this was the homeworld for the Edo, a pre-warp humanoid species.
The Edo were protected by a trans-dimensional being who they worshiped as their God. Data suggested that the Edo may have been originally placed on the planet by this being. Random punishment zones were moved around on the planet's surface.
The USS Enterprise-D visited this planet after delivering Earth colonists to the neighboring Strnad solar system. (TNG: "Justice")
Beckett Mariner once stranded Brad Boimler on Rubicun III. In 2381, Boimler recalled this incident. (LD: "An Embarrassment Of Dooplers")

External links
- Re-Used Planets in TNG at Ex Astris Scientia
- Rubicun III at Memory Beta, the wiki for licensed Star Trek works