For the type of solar system, please see quaternary star system.

The Quaternary star systems were an entity which which at some point in the 100,000 years preceding the mid-23rd century fought a war with the Roquarri Imperium.

This conflict was witnessed by a lifeform known as the Sphere, and information about it was transferred to USS Discovery upon its death. (DIS: "An Obol for Charon")

The war was said to have lasted a "solar cent…".
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