Rosiul is a star system near the borders of the Federation, Klingon Empire and the Romulan Star Empire, located in the galaxy's Sagittarius Arm, somewhere in the Alpha or Beta Quadrants.
History and specifics[]
The Rosiul system's orbit was the location of a planetary system. When the quarantine zone directive was issued in the 2260s decade, Rosiul was located at quarantine coordinates 73.82.40. (TOS video game: The Rebel Universe)
- Rosiul was identified in the gameplay manual, specifically as being the location of a planet where a landing party could obtain a miscellaneous technology.