The Minara sector was a region of space, a sector located in the galaxy's Alpha or Beta Quadrants.
History[]
In the year 2268, the Federation starship USS Enterprise was present in the sector when the sector's star Minara became a supernova. (TOS episode & Star Trek 10 novelization: The Empath)
Radiation from the supernova blast threatened many systems in this sector for years to follow. Starfleet worked to deflect the path of the radiation from inhabited systems, a project involving many starships. (TOS - Mere Anarchy eBook: The Darkness Drops Again)