Θθ Theta is a letter in the Greek alphabet of Earth, originating in the early period of Human history.
It was used in the following contexts:
- Astronomical nomenclature
- Delta Theta III, a planet
- Omicron Theta star system
- Omicron Theta, a planet
- Theta III, a planet
- Theta VII, a planet
- Theta VII colony, a colony
- Theta 116 solar system, a star system
- Theta VIII, a planet
- Theta Amano Trade Center
- Theta Bowles, a star
- Theta Centauri, a star system
- Theta Curry, a star
- Theta Cygni XII, a planet
- Theta Gentle, a location
- Theta Gluckstern III, a planet
- Theta Helios, a planet
- Theta Hulett, a location
- Theta Hydrae, a star system in the Beta Quadrant
- Theta Indi, a star system
- Theta Mees, a location
- Theta Omicron IV, a planet
- Theta Zeta, a planetoid
- Theta Zibal III, a planet
- Codes
- "La Forge-theta-2-9-9-7", used to override operational safety limits and to verify priority clearance
- Theta-3, a decryption protocol on a Borg ship
- "Theta-alpha-2-7-3-7-blue", used by Riker to access Data's schematics
- "Worf theta-6-1-9", used to override holodeck lockout
- Designations
- Theta (classification), a Terran slave classification for the Alliance in the mirror universe
- "0413 Theta", a slave designation
- File names
- Kim Sports Program Theta-2, a holodeck program
- "Theta-12-alpha", computer medical file
- "Theta-15", filename where The Doctor's original holodeck program was stored
- Locations
- "6-theta-9", a location on the USS Voyager's deck 4
- "87-theta/271", spatial coordinates of Voyager's location
- "Grid 124, Octant 22-theta", Borg designation for origin of Species 6339
- "Theta-1-6", a section location on a planet
- Science and technology
- "Omicron theta", a sensor band
- "T = C1/θ(P)E", a math equation
- "Theta 309", a subspace band
- Theta-band / theta-band radiation / theta radiation / theta radiation field
- Theta-band device, a device used to generate theta-bands
- Theta core
- Theta storage tank / theta tank, used to house theta radiation
- Theta radiation poisoning
- Theta band filter, used on a Fournier scan
- Theta band frequency, a subspace communications frequency
- Theta class (planetoid), a type of planetoid
- Theta class (starship), a type of raider
- Theta-matrix compositor, assists in recrystalizing dilithium
- Theta flux distortion
- Theta wave, type of brain waves
- Theta-xenon, a chemical element
- Tactics
- "Pattern theta", attack pattern used by Benjamin Sisko aboard a runabout to destroy the wormhole in a Dominion simulation; also ordered by Sisko for Federation fighters against the Dominion
- "Pattern Shinzon theta", Shinzon's signature attack pattern
- "Pattern theta", an evasive maneuver against the Cardassians
- "Pattern theta-1", used by Tom Paris to evade the Praylor
- "Pattern theta-2", used by Chakotay to evade the Kazon
- Theta formation, ordered by Sisko for Federation fighters