Norcadia Prime, or simply Norcadia, was the inhabited prime planet in its star system. The planet was located in the Delta Quadrant, and was near the Pendari system. The planet was the homeworld of the Norcadians, a warp-capable humanoid species.

Norcadia Prime was noted for its beautiful beaches and some of the finest museums in the sector. Among these museums was the Norcadian Museum of Entomology, which in 2376 had a special exhibit on beetle larvae from the equatorial subcontinent. The planet generated a huge percentage of its economic revenue through the sport tsunkatse.

The USS Voyager visited Norcadia Prime in 2376 for shore leave. (VOY: "Tsunkatse")

In VOY: "Collective", Mezoti described her homeworld as a Theta-class planetoid in a binary star system, with a population of 260 million. However, it was never made clear if this was Norcadia Prime or a colony. The Star Trek Encyclopedia (4th ed., vol. 2, p. 87) believed it was the former.
According to the Star Trek: Star Charts (p. 92), the Norcadia system was a single star system, with an A-class star.
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