The Vintaak system is a star system located deep in Tholian space, possessing at least one gas giant.
In the mirror universe year 2155, Commander Jonathan Archer discovered that a starship from the future was being held inside an asteroid in the Vintaak system. After successfully staging a mutiny against Captain Forrest, Archer commandeered and forced the Terran Empire starship ISS Enterprise (NX-01) to the Vintaak system in order to retrieve the captured ship. Though Forrest eventually regained command of the Enterprise, Archer had locked the helm controls on course for Vintaak. Forrest's attempts to change Enterprise's course ultimately proved futile. When an away team under Archer's command beamed aboard the future starship, the USS Defiant (NCC-1764), the Enterprise was attacked and captured in a Tholian web. Most of the Enterprise's crew was able to escape in escape pods, but the ship itself was destroyed. (ENT: "In a Mirror, Darkly")