Cait

From Memory Alpha, the free Star Trek reference.

Cait is the planetary homeworld of a felinoid species. Caitians, the inhabitants of this world, are members of the Federation.

The name of the planet comes from a biography of Lt. M'ress published by Lincoln Enterprises in 1974. According to a non-canon source, The Worlds of the Federation, the star that Cait orbits is named 15 Lyncis, and the Caitians refer to their world as Ferasa.