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Galactic quadrant

parts of the Milky Way Galaxy within Star Trek
Longitudinal lines of the galactic coordinate system.

A galactic quadrant is one of four sectors of the Milky Way galaxy.

A galactic quadrant is also a fictional area in the television show Star Trek. In the television show the Milky Way Galaxy is split into four sections. These sections are the Alpha Quadrant, Beta Quadrant, Gamma Quadrant, and Delta Quadrant.