Mokivj was a planet located in the Outer Rim Territories, near the borders of the Unknown Regions, in grid square G-16 on the Standard Galactic Grid, that suffered a catastrophe caused by the spreading lava from an effort to destroy a Separatist cortosis mine in 19 BBY by Anakin Skywalker, Padmé Amidala, and Chiss Senior Captain Mitth’raw’nuruodo. Before the catastrophe, it had been a planet with lush grasslands and forests. Following the Battle of Atollon, Thrawn, now a Grand Admiral in the navy of the Galactic Empire, and Skywalker, now the Sith Lord Darth Vader, were sent to investigate a disturbance in the Force felt by Emperor Palpatine. By that time, there were only lifeless plains and deserts across a great swath of the surface.

Around that same time, the Grysks used their advanced technology to move four of the planet’s moons out of orbit and into the path of hyperlanes by this time. They were stopped in the process of moving another moon, leaving it drifting away from Mokivj.