Klingon Empire

Homeworld

According to the non-canon Klingon for the Galactic Traveler, Qo'noS (said to be in the Omega Leonis star system) is depicted as green when viewed from space. It includes a lone, huge land mass with a vast ocean, a severely tilted axis that causes wild seasonal changes, a turbulent atmosphere and extremes of both warm and frigid weather. The planet is also home to the Capital City of the Klingon Empire, which features prominently in several episodes of The Next Generation and Deep Space Nine. In Star Trek Into Darkness, one province of Qo'noS is depicted as an unpopulated and abandoned post-industrial sprawl. A moon, Praxis, about 1/4 of the diameter of Qo'noS is seen in orbit. Its destruction was a plot point in the film The Undiscovered Country, the after-effects driving the plot of the film and later events in the television series Star Trek: The Next Generation.