Removed
In 2366, the location of Gamma Hydra was labeled on a tactical intelligence analyis on the USS Enterprise-D bridge. (TNG: "The Defector", okudagram)
In 2367, the location of Gamma Hydra was labeled on a tactical situation monitor in Captain Benjamin Maxwell's ready room on the USS Phoenix. (TNG: "The Wounded", okudagram)
In 2368, the location of Gamma Hydra was labeled on a tachyon detection grid on the Enterprise-D bridge. (TNG: "Redemption II", okudagram remastered)
In 2366, in an alternate timeline, during the Federation-Klingon War, the location of Gamma Hydra was labeled on a tactical situation monitor in the ready room aboard the USS Enterprise-D (TNG: "Yesterday's Enterprise", okudagram)
Best for the primary Gamma Hydra and Gamma Hydra sector.