Quadrant 904

From Memory Alpha, the free Star Trek reference

Quadrant 904 is a region of space 900 light years from Earth, and six days from the Beta VI colony at warp 3.

This quadrant is the location of a star desert. In 2267, the USS Enterprise entered this quadrant on a supply run to Beta VI, and encountered the planet Gothos. (TOS: "The Squire of Gothos")

This use of the term quadrant occurred before the current standardization of the quadrant/sector model of stellar cartography.