Ligobis X was the inhabited tenth planet in its system.

The Central Gallery on Ligobis X was once the site of an impressive display of paintings created by Professor Gideon Seyetik, painted upon huge canvasses. Doctor Bashir once visited the gallery to see these paintings. (DS9: "Second Sight")

This planet was only mentioned in dialogue.
According to the script, the pronunciation for Ligobis was "li-GO-bis". [1]
According to, Ligobis X was either a Class M planet or a planet adapted for humanoid life, which orbited a star named Ligobis. The star and its planets were located in the Ligobis system. [2]; [3]