The Ratamesh system, located within the Farstey sector of the Expansion Region, was a system that included the world known as Ratamesh.
Sometime during the Subterra Period, specifically between 8000 BBY and 5500 BBY – from that period until the establishment of the Rimma and Corellian Trade Spine routes – the Ratamesh system was charted. It later became part of the region of space called the Trans-Hydian.