Skagara was a planet, the homeworld of the Skagaran civilization, located somewhere in the space of the galaxy's Alpha or Beta Quadrants.
History and specifics[]
In the year 2265, Commander Montgomery Scott criticized putting paper umbrellas into Skagaran whiskey and intended to give the Skagarans a piece of his mind if he ever got to Skagara. (STO mission: "Night of the Comet")