Azure Nebula

The Borderlands
Stations
	Deep Space 224; Outpost 89 Delta; Deep Space Station K-7;
Major Neighboring Powers
	Klingon Empire; United Federation of Planets;
Local Species
	Klingons; Son'a; Suliban; Da'al; Thama; Nascaik; Demesians;
Stellar Cartography
	Azure Nebula; Briar Patch; Celendi Nebula; Paulson Nebula; Map Of The Borderlands; List of systems and planets;
Federation Presence
	USS Artemis-A; USS Berlin; USS Chesapeake; USS John Paul Jones; USS Gemini (formerly); USS Resolution (formerly); USS Excalibur-A (formerly);
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The Azure Nebula is a class 11 nebula found on the border between the United Federation of Planets and the Klingon Empire. It is composed of oxygen and argon, with traces of theta-xenon, fluorine, and sirillium.

It was entered in 2293 by the USS Excelsior during Captain Sulu's ill-fated rescue of James T. Kirk and Leonard McCoy. There he encountered a Klingon battle cruiser commanded by Captain Kang, who attempted to escort Sulu out of the nebula, but was unfortunately disabled when the Excelsior ignited the nebula's sirillium gas.

The Azure Nebula has a superficial similarity to the class 17 nebula encountered in the Delta Quadrant by the USS Voyager that triggered a memory virus to surface within Lieutenant Tuvok. (VOY: "Flashback")

The location of the Azure nebula (highlighted in the red oval) taken from a magnified LCARS display

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