The Viga system could be found in the Northern Dependencies area, which itself was located in the Outer Expansion Zone sub-region of the Expansion Region, specifically within the Lostar sector. Situated along the Hydian Way super-hyperroute, this system was positioned between the Kidriff systems and the Draria.
This Viga system had the same name as the Viga alliance, a political entity, and by 12 ABY it was located within the territory of the New Republic.
Daniel Wallace and Jason Fry pinpointed the Viga system in grid square M-7 in their 2009 reference book The Essential Atlas. This was established on the StarWars.com Online Companion for the book.