Sector 008, also known as the Ophiucus sector, is a Beta Quadrant sector of space that is located in the heart of the United Federation of Planets, according to Federation measurement standards and terminology in stellar cartography.

As the sector's common name indicates, this sector contains the stars of system 36 Ophiuchi and its planet, Ophiucus colony. The sector was bordered towards the galaxy's lower reaches by the Alpha Centauri sector. Towards the galaxy's rimward regions, sector 008 is bordered by sector 006. Moving clockwise around the galactic center, this sector is bordered by the Sol sector. (ST reference: Star Charts)