Entelior IV

Entelior IV is the fourth planet of the Alpha Quadrant's Entelior star system. The planet has a planetary ring and an inhospitable environment.

In 2362, the USS Okinawa (NCC-13958) and the USS Assurance engaged Tzenkethi warships near Entelior IV. The Assurance was critically damaged after one of the Tzenkethi vessels launched a suicide run against it and the starship was pulled into Entelior IV's atmosphere. The Assurance was saved from destruction after Benjamin Sisko's plan to use three shuttlecraft from the Okinawa to slow its descent using tractor beams was successful.