Coriana 6
From The Great Machine
The Coriana system was the location where the final battle between the Vorlons and Shadows was fought.
Coriana 6 was a heavily populated world which both the Vorlons and Shadows were attempting to destroy.
Coriana 6 was also Sheridan's final stop, where he again met with Lorien, and went beyond the rim.
See also: Battle at Coriana 6
