The Organian system was a star system located in the Beta Quadrant on the Federation-Klingon border. The system had six planets, including the class M Organia IV, homeworld of the Organians. (ST reference: The Worlds of the Federation)
The system's star was a bright yellow dwarf of magnitude +9. (ST references: The Worlds of the Federation, Star Charts)
In 2267 Organia became contested territory between the Federation and Klingon Empire, a fleet of Klingon warship was sent to claim the planet. As they approached the system the lone Starfleet vessel already present made a hasty exit to avoid a conflict, which the Klingons observed on long range sensors. (ST - Klingons - Blood Will Tell comic: "Against Their Nature")
This system was in the general vicinity of Betelgeuse and Rigel. (FASA RPG module: Trader Captains and Merchant Princes, 1st edition)