Zirgos (Beta Castelli III) was a planet located somewhere in the space of the galaxy's Alpha or Beta Quadrants, the third planet in orbit of the Beta Castelli star system.
History and specifics[]
Located in or near the 23rd century borders of Federation space, Zirgos was the homeworld of the Zirgosian civilization. This world was destroyed in the 2260s decade when the Vinithi set off a baryon conversion rift device in this system. (TOS novel: The Three-Minute Universe)
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