Sol system

The Sol system, also known as the Terran system or the solar system, was an inhabited planetary system located within Sector 001 of the Alpha Quadrant. This was the home system of the Human species and, from 2161 to 3089, it was the capital system of the .
== Components ==
Classified as a unary star system, the Sol system consisted of the primary Sol and its nine planets. Seven of the planets had moons. In addition, there were several dwarf planets, asteroids, and comets. 
An separated the system into an inner system and an outer system. The inner system had four terrestrial planets: , Venus, Earth, and Mars. The outer system had four gas giants: Jupiter, Saturn, Uranus, and Neptune. The outermost terrestrial planet in the Sol system was Pluto. In the far reaches of the system, smaller dwarf planets existed. The system also contained a high number of comets, the orbits of which could take them both into the inner and outer solar system. (; ; : ; ) 
* Sol (primary star)
** (Sol I)
** Venus (Sol II)
** Earth (Sol III)
*** Luna (moon)
*** See objects in Earth orbit for more.
** Mars (Sol IV)
*** Deimos (moon)
*** Utopia Planitia Fleet Yards (orbiting drydocks)
**** Mars Station
** 
*** Asteroid colonies
** Jupiter (Sol V)
*** Starbase 1 (in 2259)
*** Jupiter Outpost 92
*** Jupiter Station (space station)
*** Europa (moon)
*** Ganymede (moon)
*** Io (moon)
*** See moons of Jupiter for more.
** Saturn (Sol VI)
*** Mimas (moon)
*** Rhea (moon)
*** Titan (moon)
** Uranus (Sol VII)
** Neptune (Sol VIII)
*** Triton (moon)
** Pluto (Sol IX)
** Unnamed planet
*** Starbase 1 (in 2257)
** Kuiper belt
** Oort cloud
*** Comets
**** (comet; crashed into Mars 2155)
**** Halley's Comet (comet)
**** 1889 V (comet)
**** 1892 III Holmes (comet)
**** 1892 V (comet)
**** Biela's Komet (comet)
**** d'Arrest (comet)
**** De Vico's Komet (comet)
**** Enke's Komet (comet)
**** Faye's Komet (comet)
**** Finley (comet)
**** Winnecke's Komet (comet)
== History ==
An ancient species of humanoids injected genetic material into Earth's primordial soup approximately four billion years ago. Life appeared on the planet 500 million years later. Aside from Earth-based life, Martian fossils revealed that life once existed on other planets in the Sol system. () 
A comet collided with the planet Earth approximately 65 million years ago. With the end of the dinosaur era brought about by this mass extinction event, mammals rose to prominence. Humans, one of those mammalian species, established a civilization on their home planet. By 2373, a small group of Voth scientists believed that their species evolved from hadrosaurs on Earth before fleeing the Sol system and heading for the Delta Quadrant. ()
Starting in the mid-20th century, Humans began the process of exploring and eventually colonizing their home system. Renée Picard was an astronaut who had a large role to play in the exploration of the system during this time. In the mid-22nd century, amid the Xindi crisis, it was already expected that a residual presence of Humans would remain in the Sol system, even after the destruction of Earth. By the late 24th century, Humans were living on Venus, Luna, Mars, and the moons of Jupiter and Saturn. Terraforming efforts were underway to make planets such as Venus and Mars more hospitable for humanoid life. (; ; ; ; )
Habitable space-based facilities such as starbases and spacedocks had been built in orbits around Earth, Mars, Jupiter, and smaller planetary bodies in the outer Sol system, in addition to planetary settlements. (; ; )
In 2257, the Sol system came under attack by Klingon forces near the end of the . Members of the House of D'Ghor attacked and occupied Starbase 1, orbiting a planetary body in the outer reaches of the system. A short time later, a Klingon fleet moved towards Earth, only disengaging their attack after a sudden armistice had been declared by the new Chancellor L'Rell. () 
In 2293, the maiden voyage of the was planned as a tour around the Sol system, with the ship traveling past Pluto and then returning to spacedock. However, the flight plan was abandoned when the Enterprise received a distress call from the . ()
In 2367, a Borg cube crossed the Sol system, easily eliminating the Mars Defense Perimeter, a last line of defense for the inner planets of the system. The cube was later destroyed in orbit of Earth. ()
In 2370, the Sol system was listed on the Deep Space 9 arrival roster as the point of departure for the . ( okudagram)
In 2371, a microscopic singularity passed through the system and exploded. ()
The Borg maintained a transwarp conduit with an aperture less than a light year away from Earth. The conduit was collapsed by the in 2378. ()
In an alternate timeline, all major inhabited planets and colonies in the Sol system were destroyed by the Xindi weapon. This ended when the crew sacrificed themselves to change the future by erasing interspatial parasites from Jonathan Archer, allowing him to remain in command and find and destroy the weapon. ()
In another alternate timeline, the entire Sol system was destroyed in a temporal explosion when Henry Starling took the timeship Aeon from the 20th century to the 29th century without properly calibrating the temporal matrix. This event nearly happened but was stopped when Captain Janeway manually fired a photon torpedo from Voyager at the Aeon as it entered the temporal rift, destroying it and killing Starling. ()
=== Artistic Depictions ===
Deep Space 9's classroom featured a painting of four planets of the Sol system including Earth and Saturn. ()
A year later, this classroom featured the poster "The Solar System", which depicted the whole system. ()
== Stellar Cartography ==
The Sol system was in the Alpha Quadrant. The Alpha Centauri system and the Wolf system were two of the star systems that were located in its immediate neighborhood. The Sol system was about sixteen light years from Vulcan and fewer than ninety light years from Qo'noS. (; ; )
=== Maps of the Solar System ===
In the late 19th century, the inner system was depicted on a German map of the inner system. (, opening credits)
In 2024, a map of the solar system was depicted on a backlit panel seen at the gala for the Europa Mission astronauts. ()
In 2254, the inner system was depicted on a map, which was stored in the library computer. This was one of the records scanned by the Talosians. ( production art)
In 2267, "Chart 14A: The Sol System", which was stored in the Enterprise library computer, was a map of the Sol system. This chart was scanned by the probe Nomad in auxiliary control. ( production art)
File:Ancient star chart.jpg|The inner system 
File:Sol system, The Cage.jpg|The inner system
File:Sol system map.jpg|"Chart 14A: The Solar System" 
=== Star charts ===
In 2258, the system's location was labeled on a star chart seen on the main viewscreen of the . ()
In 2259, the location of this system was labeled on a stellar cartography chart that was seen on the 's ready room viewscreen. As the capital system of the Federation, it was represented by the Starfleet Command seal colored . ()
In the 2270s, the location of Sol, and its largest planet Jupiter, was labeled on a neighborhood of astronomical objects, which was stored in the Enterprise library computer. This was one of the records scanned by V'ger. ( production art)
In 2293, the location of Sol was labeled on a map of the Milky Way Galaxy. This map was on a wall of Captain James T. Kirk's quarters aboard the . ( okudagram)
In 2364, the location of Sol was labeled in a star chart, which showed the distance of this sun to neighboring stars in light years. This record was stored in the library computer. The Portal of Outpost 63 scanned this record that year. ( production art)
The system's location was labeled in a Federation star chart that was in Fleet Admiral Kirsten Clancy's office at Starfleet Headquarters in 2399 and on the bridge of the in 2401. Sol system was in or near to Federation space. ()
In 2401, the location of Sol was labeled on a star chart that was seen on the 's bridge viewscreen. The chart was used to show the location of the combined Starfleet-Borg armada and where it needed to go to face a galactic-level threat. ()
Later that year, this system's position was labeled on a star chart used by Captain William T. Riker during his attempt at finding the last known location of the . ()
File:Spaceflight Chronology starchart 1.jpg|Sol system's stellar neighborhood
File:Star chart - Sol, Jupiter, K'ushui.jpg|Sol and nearby astronomical objects
File:The Explored Galaxy.jpg|The location of Sol on "The Explored Galaxy" star chart 
File:Romulan Neutral Zone star chart, 2259.png|The location of Sol on a star chart
== Appendices ==
=== Background information ===
A map of the galaxy created for Star Trek: Deep Space Nine Technical Manual (p. 2) was reused on a PADD in the film depicted the location of the Sol system. The PADD prop was sold on It's A Wrap! sale and auction. 
The chart naming astronomical objects was from the Star Fleet Technical Manual. 
The chart naming stars within twenty light years of Sol was drawn by Rick Sternbach for the Star Trek Spaceflight Chronology in the late 1970s. Found on page 77, this chart showed Earth's commercial and exploration routes after the use of warp drive began. Sol was a stop on the Alpha Centauri-Epsilon Eridani commercial route.
According to Star Trek: Star Charts (p. 19), although the Sol system is located in the exact corner of the sector and was thus divided equally among all eight sectors, it is considered to be in Sector 001 for purposes of celestial navigation. Similarly, while the Sol system is divided equally between the Alpha and Beta Quadrants, it is considered to be part of the Alpha Quadrant.
=== Apocrypha ===
The real-world debate on the status of Pluto as a planet was referenced in the novel Before Dishonor. Star Trek Online established that Sol has eight planets in the system's description. Both Pluto and the unnamed Starbase 1 planet are represented in-game alongside the other planets, indicating that the two are considered dwarf planets in the 23rd and 25th centuries.
According to The Worlds of the Federation, there was a tenth planet beyond Pluto.
=== External links ===
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Category:Star systems