The Gagarin system was an inhabited star system in Federation-controlled Sector Gamma 7. The Federation in the 24th century had established an outpost – the Darwin Genetic Research Station – in this system for research into the role of genetics in evolution. The starships USS Lantree and USS Enterprise-D visited this system in 2365. (TNG: "Unnatural Selection")

• Gagarin (primary)
  • Gagarin I
  • Gagarin II
  • Gagarin III
  • Gagarin IV