The "Star trek" canon concordance
Spatial bodies: D is for Dust cloud
- Daled IV: Dauphin: Next ruler
- Dark Matter Nebula: See Nebula
- Davlos Prime (Planet, near Klingon Empire/Romulan Star Empire border, UFP, Beta Quadrant): UFP: Special Care Centre
- Davlos III (Planet, near Klingon Empire/Romulan Star Empire border, Beta Quadrant): Romulan Star Empire: UFP: Ownership dispute
- Dayus IV (Planet): O'Brien 2, Miles: Orion Syndicate infiltration identity residence
- Degos Prime (Planet): UFP: (Supply world)
- Delios VIII (Planet): Planetology: Caves: (Sacred to shamans)
- Delos IV (Planet): Minor independent trading outpost
- Delta IV (Planet, UFP): Decker, Will: (Resident) - Ilia: (Homeworld)
- Delta Vega (Planet, UFP): UFP: Automated mining
- Demon class planet: See Class Y planet
- Deneb II (Planet, UFP, Alpha Quadrant): Argelian nightclub serial killer
- Deneb IV (Planet): Farpoint Station: (Bandi create for Starfleet) - Old Bandi City: Spatial being attacks - Orbit: USSEnterprise-D, USSHood
- Deneb V (Planet): Emperor Mudd
- Deneva (Planet): Guardian of Forever
- Devos II (Alpha Quadrant): Son'a outpost: (Ketracel White facility)
- Deyos IV (Planet, ?Beta Quadrant): The Albino: Command post
- Dinaal (Planet, Delta Quadrant): Biosphere: (Eco-disasters) - Dinaali: Homeworld - Gammadan: (Mining facility) - Northern continent: Orbit: Geostationary: Hospital Ship 42
- Donatu V (Planet): Dominion: (Destroys convoys) - Rotarran: (Convoy duty)
- Dozaria (Planet, Alpha Quadrant): Breen: Mining - Crash: (Ravinok), Survivors become slaves
- Drayan II (Planet, Delta Quadrant): Mineralogy: Polyferranide - Spatiography: Moons: Several
- Draylax (Planet, Alpha Quadrant): Mayweather, Travis: (Visit)
- Draylon II (Planet, UFP): Location: (Near Celfala Prime) - Planetology: Classification: (M) - Skrreeans: New homeworld after Bajor refuses immigration
- Drema IV (Planet, ?Alpha Quadrant): Data: Pen pal Sarjenka - Planetology: Volcanically active
- Dreon VII (Planet, Alpha Quadrant): Bajor: (Colony) - Location: DS9: (12 hours for most ships) - Xhosa: (Regular supply run)
- Druoda (Planet, Delta Quadrant): Druoda weapon: (Launch)
- Durna (Moon, Bajor): Aka Bajor IV - Romulan Star Empire: (Hospital), (Torpedo emplacements), Blockaded
- Dust, interstellar (Delta Quadrant): USSVoyager {Deuterium}: Warp field: Contaminates
- Dust, space (Neutral Zone, Beta Quadrant): USS Enterprise-E: (20 particles per cm³)
- Dwarf star: See Star
- Dytallix B (Planet, Mira System, UFP): Biology: Fauna: (None); Flora: (None) - Climatology: Temperature: (>180°C) - Orbit: USSEnterprise-D; (USSHoratio); (USSRenegade); (USSThomas Paine) - Mineralogy: Mining: (Dytallix Mining Co); Entrance: Walker Keel meets Jean-Luc Picard, Rixx, Tryla Scott - Spatiography: Mira: (Tidal lock), (V); Terminator: (Mines)
