Wormhole junction

A wormhole junction was a stable gravitic anomaly, a flaw in normal space providing access via hyper-space between widely separated points. It consisted of a central wormhole, the nexus, and its associated termini.These generally located wlthin a series of Wormhole Clusters

The termini were sometimes hundreds of light years away from the central nexus and from each other. Travel through the wormhole by hyper-capable ships was possible and allowed rapid travel to places that otherwise might take weeks, months, or even years to reach. Ships could travel from the nexus to any terminus, and from a terminus to the nexus, but direct travel between termini was impossible.

When a ship entered a junction, it actually ceased to exist in the normal space-time continuum for an instant.

The concept of wormhole junctions was first theorized byDr. Shigematsu Radhakrishnan. 

Known wormhole junctions
Wormholes that only allowed there-and-back travel between two termini were commonly referred to ashyper bridgesorwormhole bridges.
 * Asgard Wormhole Junction- three termini
 * Erewhon Wormhole Junction- two termini
 * Felix Wormhole Junction- four termini
 * Manticore Wormhole Junction- seven termini
 * Visigoth Wormhole Junction- two termini
 * Yildun Wormhole Junction- two termini

There were also quasi-wormhole junctions, such as theSGC-902-36-G Wormhole Anomaly, thePhoenix Junctionor the one between theGregor Terminusof the Manticore Wormhole Junction and theDurandel Terminusof the Asgard Wormhole Junction.