H'atoria: Klingon colony where Worf was Governor in Q's future.
Halee system: Star system where Lieutenant Worf suggested renegades be allowed to die.
Halii: -Planet.
       -Home of Lieutenant Aquiel Uhnari.
Halley's comet: Ball of ice that travels through Earth's solar system every 76 years.
Hanoli system: Star system where a subspace rupture destroyed a Vulcan ship.
Hanolin Asteroid Belt: Asteroid belt where a Ferengi cargo shuttle crashed and the wreckage of 
                       the Vulcan ship T'Pau was found.
Hanon IV: Class M planet in the Delta Quadrant.
Hanoran II: Planet.
Hansen's Planet: -Planet.
                 -Homeworld to humanoid creatures similar to those on Taurus II.
Harod IV: Planet where U.S.S. Enterprise NCC-1701-D picked up stranded miners.
Harrakis V: Planet visited by U.S.S. Enterprise NCC-1701-D in 2367.
Hatarian system: System where Captain Jean-Luc Picard wanted to visit some archeological ruins.
Haven: Planet reputed to have mystical powers.
Hayashi system: -Star system.
                -Site of atmospheric charting mission in 2366.
Hekaras Corridor: Only safe passage for warp-driven vessels near Hekaras II.
Hekaras II: -Class M planet.
            -Damaged by a subspace rift.
Helaspont Nebula: Astronomical cloud containing numerous protoplanetary masses.
Hemikek: Planet in a yellow dwarf system in the Delta Quadrant.
Hemikek IV: Planet in tha Delta Quadrant.
Heva VII: -Planet in the Delta Quadrant.
          -Site of a refueling port.
Hoek IV: Planet where the Sampalo relics can be viewed.
Holberg 917G: -Planetoid.
              -Home to Flint.
Holna IV: -Planet in the Kabrel systems in the Alpha Quadrant.
          -Location of large deposits of mizainite ore.
Horvian Cluster: -Stellar group.
                 -Location of planet Casperia Prime.
Hromi Cluster: Location of planet Gamma Hromi II, near the Acamar system.
Hugora Nebula: Astronomical phenomenon located very close to the Demilitarized Zone.
Hur'q planet: Uncharted class M planet in the Gamma Quadrant.
Hurada III: Planet visited by Tarmin and his group of telepathic historians.
Hurkos III: Planet where Devinoni Ral moved at age 19.
Hyralan Sector: Location where U.S.S. Enterprise NCC-1701-D intercepted the Klingon Koral
                before he could transfer his cargo to Arctus Baran's mercenaries.