Sector 8023, known as Sector 12 to the Pleyarec, (AUDIO: Power Play) was a sector of space that lay in the Third Quadrant of the Mutter's Spiral galaxy. Earth was located in this sector. (TV: Logopolis) In the 1970s, the Institute of Space Studies, Baltimore believed that in Earth's section of the galaxy there were over 500 planets capable of supporting life. (TV: Spearhead from Space)