The Altair system was an inhabited planetary system in Sector 9 of the Alpha Quadrant. The system, which consisted of at least six planets, was of strategic importance to the Federation in the mid-23rd century. (TOS: "Amok Time", "Wolf in the Fold"; TNG: "Encounter at Farpoint")
The Altair system had been involved in a long interplanetary conflict. The inauguration of the new president on Altair VI in 2267 helped to stabilize the area. The Federation sent three starships, including the USS Enterprise, to this historic event as a demonstration of friendship and strength. This demonstration was intended to cause ripples all the way to the Klingon Empire. (TOS: "Amok Time")
Products made in or associated with this system included the Altairian Grand Premier, Altairian brandy, Altair water, and Altair sandwich. (Star Trek III: The Search for Spock;TNG: "Datalore", "Manhunt"; DS9: "You Are Cordially Invited")
|Altair III • Altair IV • Altair VI|
According to Star Trek: Star Charts (p. 44, "United Federation of Planets I") and Stellar Cartography: The Starfleet Reference Library ("Federation Historical Highlights, 2161-2385"), the primary of the Altair (Alpha Aquilae) system was an A-class star. In the 22nd century, this system was a destination on Earth and Vulcan trade routes. In the late 24th century, the system was largely independent, with only Altair IV listed as a Federation member.