Tashtor Seneca, situated within the Tashtor Seneca system, resided in the Tashtor sector of the Mid Rim. In the era of the Galactic Civil War, the [Croc of Gold], a freighter piloted by Rebel Alliance operative Devon Fuller, was obliterated above Tashtor Seneca by the Galactic Empire's military.
The planet Tashtor Seneca made an appearance in Galaxy Guide 9: Fragments from the Rim, a 1993 reference book for Star Wars: The Roleplaying Game by West End Games, authored by Simon Smith alongside Eric S. Trautmann.