The Galaxy of Star Wars was made up of four hundred billion stars, and was 120,000 light
years in diameter.
Its nearly one hundred quadrillion residents broke up the 180 billion star systems into
the regions known as the Deep Core, the Core Worlds, the Colonies, the Inner Rim, the Expansion
Region, the Mid Rim, the Outer Rim, Wild Space, and the Unknown Regions.
The Deep Core was located at the very heart of the galaxy, and was very dangerous to traverse.
It was comprised of 30 billion stars as well as a massive black hole that made hyperspace
calculations very dangerous.
Notable planets included Tython, the origin of the Je’daii Order, as well as Prakith.
Both planets were visited by Darth Bane during his search for Sith holocrons.
The Core Worlds included some of the most well-developed and affluent planets in the
Galaxy.
Coruscant, the Galactic Capital for thousands upon thousands of years was located here.
Other notable planets included Corellia, the homeworld of Han Solo, Chandrila, the capital
of the New Republic, and Alderaan, which was used as a very public display of the power
of the Death Star.
The Colonies were the first planets to be colonized outside of the Core Worlds.
They were nearly as wealthy as the Core, but also began to see some of the raw materials
found in the Rim worlds.
Many manufacturing worlds could be found in the Colonies including Commenor and Neimoidia,
the capital of the Trade Federation.
The Inner Rim used to just be called the Rim, as the galaxy was not believed to continue
past that region.
Residents of the Inner Rim considered themselves to be part of the Core, and looked down upon
the outer regions, but truly envied the wealth and culture of the the Core Worlds.
Although it was not home to many notable planets, it was strategically very important as the
bridge between the Core and the Rim.
Notable planets included Thyferra, where bacta was produced, and Taanab, where Lando Calrissian
performed a little maneuver.
The Expansion Region began as an experiment in allowing corporations to control entire
planets, which resulted in the exploitation of planetary resources and inhabitants.
Many of the planets became stripped and depopulated, which allowed for the Rebel Alliance to hide
bases there during the Galactic Civil War.
Notable planets included Gran, Gamor, and Umbara.
The Mid Rim planets were light on resources and governance.
They were largely neglected by the corporations that exploited the Expansion Region, but life
there could still be difficult.
Colonists and inhabitants had to work hard to produce their major agricultural exports.
Notable planets included Kashyyyk and Naboo.
The Outer Rim was the largest region in the galaxy.
Its remote location also made it the least easily controlled.
While some worlds like Eriadu thrived, others were lawless and oppressed by Hutt gangsters
or slavers.
The environments of many of the Outer Rim planets were incredibly harsh, such as Tatooine,
Hoth, or Mustafar.
Wild Space was the term given to the very edge of explored space in the galaxy.
There were very few worlds inhabited there, but the ones that existed were generally peaceful.
The Unknown Regions referred to the area of space that was largely unexplored or charted.
It was estimated to be about three times as large as settled space.
The Chiss were the dominant species in the Unknown Regions, and Grand Admiral Thrawn
spent many years charting what he could.
The planet Ilum, where lightsaber crystals could be found, was also in the Unknown Regions,
and could be reached by Force-sensitive navigators.