Tarquolese was a star system, located somewhere in the space of the galaxy's Alpha or Beta Quadrants, lying outside Federation space.
The Tarquolese system's orbit was the location of a number of worlds, including third planet Yquitra, whose third moon was home to an Orion retirement colony.
In the year 2293, the starship USS Enterprise-A visited the Tarquolese system to retrieve Hasmek and Pardek from the Yquitra colony. (TOS novel: Mind Meld)
- Tarquolese primary star