Gamelan V
From Star Trek : Freedom's Wiki
Gamelan V was a planet located in the Gamelan system, populated with an indigenous humanoid species.
In 2367, an ancient unmanned sublight freighter carrying toxic waste was pulled into orbit around Gamelan V, and began leaking massive radiation into the atmosphere. Ambient radiation levels increased by upwards of 3,000%. Chairman Songi, the planet's leader, contacted the USS Enterprise-D, under the command of William Riker, for help. The Enterprise was able to save the planet by tractoring the barge into the Gamelan sun. (TNG: "Final Mission")