Quadrants
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- Large-scale general galactic division of space
- Defined via two radial planes intersecting cylinder circumscribing the galaxy
- First plane intersects Sol, second plane perpendicular to first
- Spinward from Sol, quadrants are named as Alpha, Gamma, Delta, Beta
- Alpha Quadrant
- Spinward quadrant to Sol
- Major known interstellar powers
- c.600 mya - 252 mya: Manraloth
- c.600,000 ya: Shedai
- c.600,000 ya BCE: Tkon Empire
- c.214,000 BCE - 212,000 BCE: Mro
- c.200,000 ya: Iconia
- c.40th century BCE: Furies
- - c. 13th century - c. 14th century: Menthar
- - c. 13th century - c. 14th century: Promellia
- c.19th century - Present: Cardassian Union
- - 2151 - Present: Tholian Assembly
- - 2155 - Present: Breen Confederacy
- 2161 - Present: United Federation of Planets
- Beta Quadrant
- Antispinward quadrant to Sol
- Major known interstellar powers
- c.600 mya - 252 mya: Manraloth
- c.600,000 ya: Shedai
- c.600,000 ya BCE: Tkon Empire
- c.500,000 ya BCE: Arret Empire
- c.200,000 ya: Iconia
- c.40th century BCE: Furies
- c.4th century - Present: Romulan Star Empire
- c.14th century - Present: Klingon Empire
- 2161 - Present: United Federation of Planets
- Gamma Quadrant
- Delta Quadrant
- Antispinward quadrant to Beta Quadrant
- Major known interstellar powers
- c.600 mya - 252 mya: Manraloth
- c.20,000,000 ya - Present: Voth
- c.200,000 ya: Iconia
- c.45th century BCE - 2381: Borg Collective