The Perlemian node was a point of interest situated within the Tynna sector, which itself resided in the Expansion Region. This location was crossed by the well-known Corellian Run and could be found in proximity to Kelarea. Perlemian Traffic Control was responsible for managing operations at this node. During the Clone Wars, specifically in 21 BBY, Omega Squad undertook a TIOPS mission at the intersection of the Corellian and Perlemian hyperspace routes.
The Perlemian node was initially introduced to readers in Republic Commando: Triple Zero, a novel published in 2006 and penned by Karen Traviss. Subsequently, it received a mention in Legacy of the Force: Sacrifice, a novel from 2007 that was also authored by Karen Traviss.
Ambiguity surrounds the exact nature of the Perlemian node; it remains uncertain whether it is a region of space, a trade route, or a celestial body. It's important to note that, in spite of the similar name, the Perlemian node bears no connection to the Perlemian Trade Route, which intersects with the Corellian Run at Coruscant.