Keloda

From Memory Alpha, the free Star Trek reference

Keloda is a binary star system located in the Delta Quadrant. Neelix was nearly trapped in a quantum singularity once while on a "particularily dangerous trade mission" to the twin stars of Keloda.

Neelix used his trip through the Keloda system as an example to Kes in his explanation of quantum singularities. (VOY: "Parallax")