Locator logo insignia showing the galaxy's Alpha and Beta Quadrants.
The Llingri Star Cluster was a stellar formation, a star cluster located within 23rd century Federation space, somewhere in the galaxy's Alpha or Beta Quadrant.
History and specifics[]
Circa stardate 8083.6, the USS Enterprise under command of Captain Spock conducted a Starfleet Academy cadet training cruise in proximity to the Llingri Star Cluster. (TOS novel: Strangers from the Sky)