Centuri II was an inhabited planet, the second in its system, located in the space of the Alpha or Beta Quadrants.

In 2268, Montgomery Scott, while fighting pirates on Tortuga VI, told James T. Kirk that he hadn't had so much fun since they took on armed savages on Centuri II. (TOS comic: "The Flight of the Buccaneer")

"Centuri" is presumably a misspelling of "Centauri".
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