Galactic quadrant (Star Trek)
Encyclopedia
In the television series Star Trek
Star Trek: The Original Series
Star Trek is an American science fiction television series created by Gene Roddenberry, produced by Desilu Productions . Star Trek was telecast on NBC from September 8, 1966, through June 3, 1969...

and its spin-offs, Galactic quadrant refers to an area of the Milky Way Galaxy
Milky Way
The Milky Way is the galaxy that contains the Solar System. This name derives from its appearance as a dim un-resolved "milky" glowing band arching across the night sky...

. In the original Star Trek, it referred to an area interchangeable with a sector. However, in the various spin-off series and movies beginning with Star Trek: The Next Generation
Star Trek: The Next Generation
Star Trek: The Next Generation is an American science fiction television series created by Gene Roddenberry as part of the Star Trek franchise. Roddenberry, Rick Berman, and Michael Piller served as executive producers at different times throughout the production...

, it refers to a system of four Galactic Quadrants, designated by the Greek
Greek alphabet
The Greek alphabet is the script that has been used to write the Greek language since at least 730 BC . The alphabet in its classical and modern form consists of 24 letters ordered in sequence from alpha to omega...

 letters Alpha
Alpha (letter)
Alpha is the first letter of the Greek alphabet. In the system of Greek numerals it has a value of 1. It was derived from the Phoenician letter Aleph...

, Beta
Beta (letter)
Beta is the second letter of the Greek alphabet. In Ancient Greek, beta represented the voiced bilabial plosive . In Modern Greek, it represents the voiced labiodental fricative ....

, Gamma
Gamma
Gamma is the third letter of the Greek alphabet. In the system of Greek numerals it has a value of 3. It was derived from the Phoenician letter Gimel . Letters that arose from Gamma include the Roman C and G and the Cyrillic letters Ge Г and Ghe Ґ.-Greek:In Ancient Greek, gamma represented a...

, and Delta
Delta (letter)
Delta is the fourth letter of the Greek alphabet. In the system of Greek numerals it has a value of 4. It was derived from the Phoenician letter Dalet...

.

Original usage

The original usage of 'quadrant' appears in episodes such as "The Deadly Years" and "The Squire of Gothos", where numbered quadrants (448 and 904) are given. In other episodes it appears to refer to an entire quarter of the galaxy. The season 3 Star Trek: The Next Generation
Star Trek: The Next Generation
Star Trek: The Next Generation is an American science fiction television series created by Gene Roddenberry as part of the Star Trek franchise. Roddenberry, Rick Berman, and Michael Piller served as executive producers at different times throughout the production...

 Writers' Technical Manual
asserts that there are 4 quadrants in each sector (which seem to vary in size).

Four quadrants

The exact quadrant borders are not clearly established in the series canon. Episodes often contradict each other. Art staff explanations also contradict each other.
The 1988 Star Trek: The Next Generation
Star Trek: The Next Generation
Star Trek: The Next Generation is an American science fiction television series created by Gene Roddenberry as part of the Star Trek franchise. Roddenberry, Rick Berman, and Michael Piller served as executive producers at different times throughout the production...

episode "The Price" introduced the concept of four quadrants of the galaxy, named the Alpha, Beta, Gamma and Delta quadrants.

Star Trek VI: The Undiscovered Country
Star Trek VI: The Undiscovered Country
Star Trek VI: The Undiscovered Country is the sixth feature film in the Star Trek science fiction franchise and is the last of the Star Trek films to include the entire main cast of the 1960s Star Trek television series. Released in 1991 by Paramount Pictures, it was directed by Nicholas Meyer and...

implies that the Alpha/Beta border runs through, or is relatively close to, Federation
United Federation of Planets
The United Federation of Planets, also known as "The Federation" is a fictional interplanetary federal republic depicted in the Star Trek television series and motion pictures...

 space. The Star Trek Encyclopedia attributes this decision to a desire to rationalize a line in Star Trek II: The Wrath of Khan
Star Trek II: The Wrath of Khan
Star Trek II: The Wrath of Khan is a 1982 American science fiction film released by Paramount Pictures. The film is the second feature based on the Star Trek science fiction franchise. The plot features James T...

, in which James T. Kirk
James T. Kirk
James Tiberius "Jim" Kirk is a character in the Star Trek media franchise. Kirk was first played by William Shatner as the principal lead character in the original Star Trek series. Shatner voiced Kirk in the animated Star Trek series and appeared in the first seven Star Trek movies...

 claimed that the Enterprise was the only ship in a Quadrant. Most of the maps produced by the art staff for the series (both on-screen and published) show that the Sol system is roughly in the center of the Alpha Quadrant, however some of the maps show that the Sol system is at the edge of the Alpha and Beta Quadrants.

Alpha and Beta Quadrants

Assuming the galactic meridian runs from the center of the galaxy through Earth's solar system, then the Alpha Quadrant is between 180 degrees and 270 degrees, and the Beta Quadrant is between 90 degrees and 180 degrees.

The Alpha Quadrant and the nearby areas of the Beta Quadrant are the primary setting of Star Trek: The Original Series
Star Trek: The Original Series
Star Trek is an American science fiction television series created by Gene Roddenberry, produced by Desilu Productions . Star Trek was telecast on NBC from September 8, 1966, through June 3, 1969...

, Star Trek: The Next Generation
Star Trek: The Next Generation
Star Trek: The Next Generation is an American science fiction television series created by Gene Roddenberry as part of the Star Trek franchise. Roddenberry, Rick Berman, and Michael Piller served as executive producers at different times throughout the production...

, Star Trek: Deep Space Nine
Star Trek: Deep Space Nine
Star Trek: Deep Space Nine is a science fiction television series set in the Star Trek universe...

, and Star Trek: Enterprise
Star Trek: Enterprise
Star Trek: Enterprise is a science fiction television series. It follows the adventures of humanity's first warp 5 starship, the Enterprise, ten years before the United Federation of Planets shown in previous Star Trek series was formed.Enterprise premiered on September 26, 2001...

. According to the Encyclopedia, the Federation is largely on the Alpha Quadrant side, but with parts in the Beta Quadrant; whereas the Klingon
Klingon
Klingons are a fictional warrior race in the Star Trek universe.Klingons are recurring villains in the 1960s television show Star Trek: The Original Series, and have appeared in all five spin-off series and eight feature films...

 and Romulan
Romulan
The Romulans are a fictional alien race in the Star Trek universe. First appearing in the original Star Trek series in the 1966 episode "Balance of Terror", they have since made appearances in all the main later Star Trek series: The Animated Series, The Next Generation, Deep Space Nine, Voyager...

 Empires are mainly in the Beta Quadrant but extend in part into the Alpha Quadrant. The Star Trek Star Charts have the Romulans and Klingons entirely within the Beta Quadrant, as well as the Gorn Hegemony
Gorn
In Star Trek, the Gorn are humanoid reptiles from the Gorn Hegemony.-Fictional history:The Gorn had contact with the Orion Syndicate as early as 2154...

, the Son'a Solidarity and the Metron Consortium. Star Trek Star Charts further located the First Federation, Breen, Ferengi
Ferengi
The Ferengi are a fictitious extraterrestrial race from the Star Trek universe. They first appeared in "The Last Outpost", the fifth episode of Star Trek: The Next Generation in 1987, during which they made first contact with the United Federation of Planets in 2364 on the planet Delphi Ardu,...

, Tzenkethi, Cardassian
Cardassian
The Cardassians are an extraterrestrial species in the Star Trek science fiction franchise. First introduced in the 1991 Star Trek: The Next Generation episode "The Wounded", the species originating on the fictional Alpha Quadrant planet Cardassia Prime...

s, Bajoran
Bajoran
In the Star Trek science-fiction franchise, the Bajorans are a humanoid extraterrestrial species native to the planet Bajor. They were first introduced in the 1991 episode "Ensign Ro" of Star Trek: The Next Generation and subsequently also featured in episodes of Star Trek: Deep Space Nine and...

s, Talarians and Tholian
Tholian
Tholians are a fictional starfaring and extremely territorial race in the Star Trek fictional universe. The Tholian home nation is the Tholian Assembly, which inhabits an area of space in the Alpha Quadrant, near the Cardassian Union and the Badlands....

s in the Alpha Quadrant.

Of core worlds, Star Trek Star Charts claims that Vulcan (40 Eridani
40 Eridani
40 Eridani is a triple star system less than 16.5 light years away from Earth. It is in the constellation Eridanus. The primary star of the system, 40 Eridani A, is easily visible to the naked eye...

), Andoria (Procyon
Procyon
Procyon is the brightest star in the constellation Canis Minor. To the naked eye, it appears to be a single star, the seventh brightest in the night sky with a visual apparent magnitude of 0.34...

), Risa
Risa
- People :* Risa Coda , a Japanese AV actress* Risa Hayamizu , a Japanese voice actress* Risa Itō , a Japanese manga artist* Risa Junna , a Japanese actress* Risa Kudō , a Japanese model and actress...

 and the Rigel (Beta Rigel
Rigel
Rigel is the brightest star in the constellation Orion and the sixth brightest star in the sky, with visual magnitude 0.18...

) systems are in the Beta Quadrant, with Tellar (61 Cygni
61 Cygni
61 Cygni,Not to be confused with 16 Cygni, a more distant system containing two G-type stars harboring the gas giant planet 16 Cygni Bb. sometimes called Bessel's Star or Piazzi's Flying Star, is a binary star system in the constellation Cygnus...

), Trill
Trill (Star Trek)
The Trill are a fictional species of symbiotic life forms, depicted in the Star Trek media franchise. First introduced in an episode of Star Trek: The Next Generation, the species became a major part of the spin-off series, Star Trek: Deep Space Nine, which featured a Trill named Dax as one of its...

 and Betazed in the Alpha Quadrant.

Star Trek Star Charts has the Romulans corewards and counterclockwise from the Federation core, with the Klingons rimwards of the Romulans. Federation territory is shown to expand around the backs of the Klingon and Romulan Empires, further into the Beta Quadrant. Other powers such as the Cardassians, Tholians and Ferengi are on the clockwise side of the Federation. The 1975 Star Fleet Technical Manual by Franz Joseph
Franz Joseph (artist)
Franz Joseph was an artist and author loosely associated with the 1960’s American television show Star Trek. Joseph is perhaps best known for his 1973 Star Trek Blueprints , to date the only set of blueprints of the original Starship Enterprise ever officially endorsed by...

 also has a galactic meridian running through Sol, but depicted the Romulans as being counterclockwise, and the Klingons as being clockwise.

Although the Romulans and Klingons are shown by maps as part of the Beta Quadrant, Star Trek: Deep Space Nine
Star Trek: Deep Space Nine
Star Trek: Deep Space Nine is a science fiction television series set in the Star Trek universe...

did not use this terminology, referring to them as Alpha Quadrant powers. Ronald D. Moore
Ronald D. Moore
Ronald Dowl Moore is an American screenwriter and television producer best known for his work on Star Trek and the re-imagined Battlestar Galactica miniseries and television series, for which he won a Peabody Award for creative excellence in 2005 and an Emmy Award in 2008.-Early life and...

 noted that the "Alpha quadrant is firmly planted in the audience's mind as where the Federation, the Klingons, and the Romulans all live so I think we'll stick with that nomenclature".

About 600,000 years ago, the Alpha Quadrant was dominated by the Tkon Empire, which is long since vanished by the time of the Star Trek series.

Gamma Quadrant

The Gamma Quadrant is situated between 270 degrees and 360 degrees.
It is the home of the Changelings, or Founders. The majority of it is ruled by the Dominion
Dominion (Star Trek)
In the Star Trek universe, the Dominion is a ruthless and militaristic Gamma Quadrant state consisting of many different races. The Dominion wages war on the United Federation of Planets and its allies in the late 24th century, acting as an antagonist in the TV show Star Trek: Deep Space...

.

Bajoran wormhole

In the fictional Star Trek
Star Trek
Star Trek is an American science fiction entertainment franchise created by Gene Roddenberry. The core of Star Trek is its six television series: The Original Series, The Animated Series, The Next Generation, Deep Space Nine, Voyager, and Enterprise...

 universe, the Bajoran wormhole
Wormhole
In physics, a wormhole is a hypothetical topological feature of spacetime that would be, fundamentally, a "shortcut" through spacetime. For a simple visual explanation of a wormhole, consider spacetime visualized as a two-dimensional surface. If this surface is folded along a third dimension, it...

 is a spatial anomaly located near the planet Bajor. The Bajoran
Bajoran
In the Star Trek science-fiction franchise, the Bajorans are a humanoid extraterrestrial species native to the planet Bajor. They were first introduced in the 1991 episode "Ensign Ro" of Star Trek: The Next Generation and subsequently also featured in episodes of Star Trek: Deep Space Nine and...

 religion refers to the wormhole as the "Celestial Temple". It appears as an aperture of swirling golden light surrounded by blue clouds, which appears when a vessel approaches and disappears when the vessel enters it; it also appears when discharging a vessel. The wormhole can only be traversed by ships traveling at impulse (sub-light speed) velocities.

The wormhole is discovered in the first episode of Star Trek: Deep Space Nine
Star Trek: Deep Space Nine
Star Trek: Deep Space Nine is a science fiction television series set in the Star Trek universe...

. It is found to lead from the Bajor-B'Hava'el system in the Alpha Quadrant to the Idran system in the Gamma Quadrant, 70,000 light-year
Light-year
A light-year, also light year or lightyear is a unit of length, equal to just under 10 trillion kilometres...

s away and on the other side of the galaxy. Due to the strategic importance of such a phenomenon, the Deep Space Nine
Deep Space Nine (space station)
Deep Space Nine is a fictitious space station, and is the eponymous primary setting of the science fiction television series Star Trek: Deep Space Nine. It serves as a base for the exploration of the Gamma Quadrant via the Bajoran wormhole, and is a hub of trade and travel for the sector's denizens...

 space station
Space station
A space station is a spacecraft capable of supporting a crew which is designed to remain in space for an extended period of time, and to which other spacecraft can dock. A space station is distinguished from other spacecraft used for human spaceflight by its lack of major propulsion or landing...

 is moved out of Bajor's orbit and repositioned near the wormhole.

Starfleet
Starfleet
In the fictional universe of Star Trek, Starfleet or the Federation Starfleet is the deep-space exploratory, peacekeeping and military service maintained by the United Federation of Planets . It is the principal means by which the Federation conducts its exploration, defense, diplomacy and research...

 Commander Benjamin Sisko
Benjamin Sisko
Benjamin Lafayette Sisko, played by Avery Brooks, is the main character of the television series Star Trek: Deep Space Nine.-Early life and career:...

 and Lt. Jadzia Dax
Jadzia Dax
Jadzia Dax , played by Terry Farrell, was a main character during the first six seasons of the science fiction television series Star Trek: Deep Space Nine....

 are the first to make contact with the wormhole and its creators, noncorporeal beings known as the Prophets in Bajoran religion; they are simply referred to as "Wormhole Aliens" by the Federation
United Federation of Planets
The United Federation of Planets, also known as "The Federation" is a fictional interplanetary federal republic depicted in the Star Trek television series and motion pictures...

. It is they who provided the Orb-like energy artifacts (or "Tears of the Prophets") to the Bajorans and these artifacts are the basis of Bajoran religion.

The wormhole becomes a point of conflict throughout the series, since it permits travel between the Alpha Quadrant and the Gamma Quadrant controlled by The Dominion
Dominion (Star Trek)
In the Star Trek universe, the Dominion is a ruthless and militaristic Gamma Quadrant state consisting of many different races. The Dominion wages war on the United Federation of Planets and its allies in the late 24th century, acting as an antagonist in the TV show Star Trek: Deep Space...

, a malevolent organization led by the Changelings, a race of shapeshifters. Neither the Dominion nor the major powers of the Alpha Quadrant wish the other to gain a foothold in their relative quadrants, which explains the strategic importance of the wormhole running between them. The wormhole closes at one point, as a result of one of the Tears of the Prophets being temporarily rendered inert by the Pah Wraiths. It is later restored by the discovery of an additional orb by Benjamin Sisko.

Delta Quadrant

The Delta Quadrant is situated between 0 degrees and 90 degrees.

Most of the information about the Delta Quadrant and its inhabitants comes from the show Star Trek: Voyager
Star Trek: Voyager
Star Trek: Voyager is a science fiction television series set in the Star Trek universe. Set in the 24th century from the year 2371 through 2378, the series follows the adventures of the Starfleet vessel USS Voyager, which becomes stranded in the Delta Quadrant 70,000 light-years from Earth while...

. Apart from the voyages of the USS Voyager
USS Voyager (Star Trek)
The fictional Intrepid-class starship USS Voyager is the primary setting of the science fiction television series Star Trek: Voyager. It is commanded by Captain Kathryn Janeway....

, the USS Equinox, the USS Raven
The Raven (Voyager episode)
"The Raven" is an episode of Star Trek: Voyager, the sixth episode of the fourth season. The episode has an average rating of 3.8/5 on the official Star Trek website .- Plot :...

, briefly the USS Enterprise NCC-1701-D
USS Enterprise (NCC-1701-D)
The USS Enterprise is a 24th century starship in the Star Trek fictional universe and the principal setting of the Star Trek: The Next Generation television series...

, and the Federation citizens assimilated or de-assimilated from the Borg, the United Federation of Planets
United Federation of Planets
The United Federation of Planets, also known as "The Federation" is a fictional interplanetary federal republic depicted in the Star Trek television series and motion pictures...

 has not explored this quadrant.

The Delta Quadrant is home to the Borg Collective
Borg (Star Trek)
The Borg are a fictional pseudo-race of cybernetic organisms depicted in the Star Trek universe associated with Star Trek.Whereas cybernetics are used by other races in the science fiction world to repair bodily damage and birth defects, the Borg use enforced cybernetic enhancement as a means of...

, the Kazon
Kazon
In the Star Trek fictional universe, the Kazon are a Delta Quadrant race. The Kazon are technologically inferior to the United Federation of Planets as it exists in the twenty-fourth century...

, the Vidiian
Vidiian
The Vidiians are a fictional race in the science fiction television series Star Trek: Voyager, located in the Delta Quadrant. The Vidiians suffer from a necrotizing plague called "the Phage"...

s, the Talaxians, the Ocampa
Ocampa
Ocampa is the fictional home planet of the Ocampa, a fictional race of elf-like humanoids in the science fiction television series Star Trek: Voyager....

, the Hirogen
Hirogen
The Hirogen are a fictional race in the Star Trek universe, a long-running plot device in the Star Trek: Voyager television series, appearing nine times in Seasons 4-7....

, the Malon, as well as many others. Species 8472
Species 8472
Species 8472 is a fictional extraterrestrial race in the science fiction television series Star Trek: Voyager. They inhabit another dimension called fluidic space. These beings are rendered by animation from Foundation Imaging, Inc...

, beings from "fluidic space", are first encountered in this quadrant, although they are not native to this region or physical dimension.

Galactic Core

On some maps the center of the galaxy is regarded as its own area, not part of any of the 4 Quadrants. The Great Barrier is here and within it is "God" (the being encountered by Kirk and company in Star Trek V: The Final Frontier
Star Trek V: The Final Frontier
Star Trek V: The Final Frontier is a 1989 American science fiction film released by Paramount Pictures. It is the fifth feature in the franchise and the penultimate to star the cast of the original Star Trek science fiction television series...

). Also here are the Cytherians from the TNG episode, "The Nth Degree".

External links

The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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