Gamma Hydra is a star in Federation space approximately 130 light years from Sol and the central star of the Gamma Hydra system of planets in the Gamma Hydra sector, proximal to the Romulan Neutral Zone and Starbase 10. (TOS: "The Deadly Years"; Star Trek II: The Wrath of Khan)
In the Kobayashi Maru training scenario with Lt. Saavik, the ship Kobayashi Maru is located at 'Gamma Hydra, Section Ten', the Enterprise is at 'Section 14'.
- Gamma Hydra (primary)
- Gamma Hydra I
- Gamma Hydra II
- Gamma Hydra II
- Gamma Hydra IV
- Gamma Hydra is a real star (spectral class G8III) which is visible in the east extreme of the constellation "Hydra" (The Serpent), a magnitude 3.11 star about 8 degrees below the ecliptic.
- Gamma Hydra was also mentioned, in TNG: "Yesterday's Enterprise", on a tactical display seen in the observation lounge, showing the Klingon progress in an alternate timeline war with the Federation.