Takara was an inhabited planet, and was the homeworld of the Takarans and the Takaran wildebeest
In 2369, the scientist Doctor Jo'Bril had a plan of stealing the prototype metaphysic shield and transporting it back to his homeworld, where he hoped to develop the shield into a weapon. This plan was foiled by Beverly Crusher. (TNG: "Suspicions"; DS9: "Crossfire")
This planet was only mentioned in dialogue.