Coruscant
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The Galactic Center of Coruscant was the political hub of the Galaxy for millennia. During the Empire's rule, it was also known as Imperial Center.It was generally agreed that Coruscant was the most important world in the Galaxy. At various times, it was the capital of the Galactic Republic, the Galactic Empire, and the New Republic. A large number of the Galaxy's trade routes—including the Perlemian Trade Route, the Corellian Run, the Metellos Trade Route, the Koros Trunk Line, and the Leisure Corridor—went through Coruscant, making it one of the richest worlds in the Galaxy. Tellingly, the planet's hyperspace coordinates were (0,0,0).
Geologically, the planet comprised a molten core with rocky mantle and silicate rock crust.
The entire surface of Coruscant had been covered over throughout the thousands of generations of galactic history by sprawling skyscrapers and cities. These skyscrapers dwarfed all the original natural features including mountains and now dry bodies of oceans which once covered a large proportion of Coruscant's surface. All natural bodies of water had been drained and stored in vast caverns beneath the city as a result of years of overpopulation. The only body of water visible was the artificial Western Sea, with many artificially-created islands floating on it, used by tourists on holidays. One of the few pieces of Coruscant's landmass that were left untouched were the Manarai Mountains, twin peaks that stuck up out of the ground near the famous Imperial Palace. Many floating restaurants revolved around the Mountains, giving patrons a unique view of the natural wonders. Below the skyscrapers was Coruscant's undercity, where sunlight never reached. Artificial lighting illuminated these lower levels and advertisement holograms could be seen everywhere. There were numerous establishments for entertainment, catering to a myriad of alien species. The lowest levels were abandoned to mutants and scavengers, such as the cannibalistic Cthons.
With no bodies of water available to feed and water its trillion inhabitants, Coruscant's architects, along with many others from around the Galaxy, worked together to build a self-contained eco-system in the massive buildings set all over the planet. Polar cap stations also melted ice and distributed water throughout the planetwide city through a complex series of pipes. Almost everything on the planet, from clothes to packaging and machinery, was recyclable. Another problem for a world like Coruscant was the unimaginable amounts of carbon dioxide and heat energy that its trillion-being population generated each day, so thousands of carbon dioxide reactive atmospheric dampeners were put into place in the upper atmosphere to prevent atmospheric degeneration. Galactic Standard Time was developed on Coruscant and revolved around the hours Coruscant had in a single day, which was 24 hours, with 368 local days a year.
Coruscant also orbited relatively far from its tiny star Coruscant Prime, ranging from 207 million to 251 million km. Thus, Coruscant did not naturally have a climate suitable for Humans. Coruscant's Humans countered this by erecting a series of orbital mirrors that reflected the sun's warmth and light.
The Works landscape.Galactic City was divided into several thousand quadrants, with each quadrant subdivided into numbered sectors. Some of these numbered sectors received colloquial names. For example, H-46 was also called Sah'c Town, named for the family that owned much of it. Some areas were specifically designated senatorial, governmental, financial (including banking zones), commercial, and residential. Larger areas of the planet were designated for industrial or manufacturing use only. The largest of these areas was known colloquially as "The Works". The Works had manufactured spacecraft parts, droids, and building materials at an astonishing rate for hundreds of years, but as construction in space became more efficient, The Works fell in disrepair. It gained the reputation as a hub of high criminal activity and many locals stayed away from it. Another area of Coruscant was CoCo Town (short for "collective commerce"). Many diverse species lived there and worked in manufacturing.
Near the planet's core were a number of massive power relay stations.
