A Nebula-class Federation starship that carried the terraformer Gideon Seyetik to the dead star Epsilon 119 in 2370 for his attempt to reignite it.
This USS Prometheus was a Nebula-class starship, not to be confused with the experimental Prometheus-class prototype seen later in Voyager.
It appears in the Deep Space Nine episode Second Sight. The ship stops at the station on its way to Epsilon 119, a burnt-out star that the celebrated and boastful terraformer Gideon Seyetik means to bring back to life. Benjamin Sisko and Jadzia Dax join the voyage.
Sisko has meanwhile fallen for Fenna, a woman who keeps vanishing and who proves to be a psychic projection of Seyetik's unhappy wife Nidell. To free her, Seyetik flies the shuttle carrying the protomatter device into the star himself. Epsilon 119 reignites as the Prometheus looks on.