Sol system

Sol

System Data

System Type:	Single Type G2V star (Sol)
Location:	Sector 001, Terran Sector, Alpha Quadrant
Affiliation:	United Federation of Planets
Inhabited Worlds:	All planets have been settled, but only Earth (Sol III, Class M), Mars (Sol IV, Class K prior to terraforming, Class M afterward), Luna (Sol IIIa, Class D), and Titan (Sol VIa, Class G) have significant populations. Terraforming efforts continue on Venus (Sol II, Class N)
Other Stellar Objects:	Relatively rich and thick Oort cloud 1 light year out from Sol, medium-sized asteroid belt in orbit between Mars (Sol IV) and Jupiter (Sol V)

Sol, commonly known as the Sun, is orbited by eight (or nine) planets—Mercury (Sol I), Venus (Sol II), Earth (Sol III), Mars (Sol IV), Jupiter (Sol V), Saturn (Sol VI), Uranus (Sol VII), and Neptune (Sol VIII), though Pluto (Sol IX) frequently switched between being considered a planet and a planetoid prior to its destruction by the Borg in 2380. Humans lived on (or around) every planet in the system, as well as on artificial stations throughout the system, including the Khepera Chromospheric Solar Observatory inside Sol's corona and research stations embedded in comets throughout the Oort cloud a light year distant. The Talosians viewed an image of the Sol system and many images of Earth’s history while accessing the U.S.S. Enterprise NCC-1701's computer in 2254. Perhaps one of the most well-known systems in the Federation, schoolchildren from Rigel to Deneb draw pictures of Saturn's rings in kindergarten; astronomers and planetologists still study data from centuries-old probes of Sol, Jupiter, Saturn, and Neptune; and military tacticians throughout the Federation refight the Mars Defense Perimeter's resistance of the Borg invasion of 2366. No system in the Federation is better known, better charted, or more stereotyped.