The Scale of Star Wars – A Collection of References

(Created 23 February 2012)

NOTE circa 2023: A lot of this was written before Disney bought Star Wars and decanonized the old Expanded Universe. But it gives you an idea of the scale of the Star Wars Galaxy.

Crude Map of the Old Expanded Universe in Star Wars, showing Hyperspace Lanes, etc.

Star Wars: A New Hope Novelization by Alan Dean Foster, December 1976

Grand Moff Tarkin: “This station is the final link in the new-forged Imperial chain which will bind the million systems of the Galactic Empire together once and for all. Your petty Alliance will no longer be of any concern to us.” [p.116]

Star Wars Roleplaying Rulebook, 2nd Edition, West End Games, October 1992

“Reaching out from what came to be known as the Core Worlds, the Republic eventually embraced over a million member worlds, and countless more colonies, protectorates and governorships. Nearly 100 quadrillion beings pledged allegiance to the Republic in nearly fifty million systems.” [p.126]

Dark Empire Trade Paperback, 1993

Han Solo: “Sure, Why not? There’s only twelve million inhabited star systems out there....shouldn’t be too hard...” [Image in context]

Galaxy Guide 9 Fragments from the Rim, West End Games, May 1993

“At their peak, the Eyttyrmin Batiiv pirates had over 70 starfighters, 50 yachts, and 28 corvettes, as well as a number of captured civilian craft.” [p.59]
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“The Thalassian slavers most noted ship is the Harmzuay, an old Kaloth-style battlecruiser that has been upgunned to the point that it can eat Nebulon-B frigates for breakfast, and it would probably give a Victory class Star Destroyer a nasty fight.” [p.60-61]

Planets of the Galaxy Volume 3, West End Games, 1993

Note: Summarized due to sparsity of information:
Elrood Sector (Outer Rim), has just five major worlds of note (including the Sector Capital); they are:
Elrood (Capital): 6 billion
Coyn: 800 million
Kidron: 20 million
Merisee: 310 million
Derilyn: 2 billion
To patrol Elrood Sector, the Empire maintains a force of two ISDs: Thunderflare and Stalker, one Bayonet-class Light Cruiser Rintonne’s Flame, several Skipray Blastboats, and twelve minor hyperdrive equipped patrol craft which can carry a pair of TIE Fighters.

Flashpoint! Brak Sector, West End Games, 1995

“Dara looked around the room. "First, a few facts. Brak sector is located on the outer edge of the Expansion Region, about 20 light years away from the Corellian Run Trade Route on The Slice. We're a sidestep, astrographically speaking, from important Imperial military and trade lanes. The sector officially contains 67 inhabited and over 350 uninhabited star systems, but we figure small colonies and other unofficial operations bring the number of inhabited systems to around 90.” [p.2]
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“Inhabited Systems: 67
Uninhabited Systems: 355” [p.9] (Imperial METOSP)
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The Imperial Naval forces in Brak sector consist of a standard Sector Group of 2,400 ships, including 30 Star Destroyers and about 1,600 other combat starships. Most of these ships patrol various systems and trade routes within the sector. Due to the large number of abandoned mining worlds, a fourth of these ships are routinely used to make detailed sweeps of these uninhabited systems, following up reports from scout ships and probots. The Empire fully realizes how easily these worlds could (and have) become bases for pirates and Rebels. Because of the fleet staging areas in Brak sector, the actual number of Imperial forces can change rapidly.”
Imperial Staging Areas
The Empire has established four fleet staging areas within Brak sector. Each area is located in a system containing at least one world with agricultural or food-stuff production and some manufacturing capacity.” [p.12]

Tales of the Bounty Hunters, Edited by Kevin J. Anderson, December 1996

“In a sector of the galaxy Boba Fett had never heard of, a star went nova; it murdered a world and an entire sentient species. It aroused less comment than had the destruction of Alderaan, only a decade prior; the galaxy at large barely noticed the tragedy, and Fett never heard about it. In a galaxy with over four hundred billion stars, over twenty million intelligent species, such things are bound to happen.” [p.301]

Lords of the Expanse: Sector Guide, West End Games, 1997

Tapani sector is located in the Colonies on the Shapani Bypass, a trade route which is an offshoot of the Rimma Trade Route. The sector capital is Procopia, though the world of Tallaan is actually as important, because the main Imperial regional depot is located here. [p.5]
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There are about 70 systems in the sector, roughly a fifth of which have inhabitable worlds which are heavily settled. Other systems also have settlements, but much smaller ones: research stations, military outposts, mining facilities, and so on. [p.5]

Spectre of the Past by Timothy Zahn, 1997

“We still hold eight sectors — over a thousand inhabited systems. We have the Fleet, nearly two hundred Star Destroyers strong. We're still very much a force to be reckoned with.” [p.5-6] (Imperial Remnant Size)
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“A thousand systems left, out of an Empire that had once spanned a million. Two hundred Star Destroyers remaining from a fleet that had once included over twenty-five thousand of them.” [p.6] (Ultimate Size of Galactic Empire and fleet size)

Attack of the Clones: Incredible Cross Sections, Curtis Saxton, 2002

“Even in this sturdy vessel, however, a thorough home constituency tour could last a lifetime in Padme's lightly populated Chommell Sector, which comprises 36 full-member worlds, more than 40,000 settled dependencies, and 300,000,000 barren stars. With more than 1,000 sectors, the galaxy's deceptively fragile harmony depends on efficient divisions of authority within the multi-tiered government, and upon the wisdom of its roving officials and legislators.” [p.5]

Star Wars: The Essential Atlas, Daniel Wallace & Jason Fry, 2009

This bright sphere in the center? That's the Deep Core. It's about seven thousand light-years across and contains about thirty billion stars. I've been there; if you're lucky, you never will be.” [p.ix]
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Now I said there are four hundred billion stars in the galaxy, but there aren't four hundred billion systems. How many of you are from a system with two suns—or three, or more? About what I figured. The number of star systems is about 180 billion.” [p.ix]
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Do the math and you wind up with about 7.1 billion habitable stars in the known galaxy—that's about 3.2 billion habitable star systems. We haven't gotten everywhere yet—it's estimated that nearly a billion of those systems actually have someone living in them. But most of those places are pretty lonely—if I'm remembering my census data correctly, about 69 million of those systems meet the population requirements for Imperial representation, and just 1.75 million planets are full member worlds.” [p.x]
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What's that? Oh, you want an answer to the life question. Well, nobody knows for sure—remember only about a quarter of the galaxy has been properly surveyed. But there are more than five million intelligent species known to the Empire. Do the math, and you'll realize there have to be a fair number of species we've yet to meet.”[p.x]
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“The young Republic would be divided into sectors containing no more than fifty inhabited systems—a low ceiling set because the Senate feared that giant sectors would form the seeds of breakaway empires. Under this new arrangement, planetary Senators would be represented by a single sectorial Senator.” [p.3]
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“The Ruusan Reformations of 1000 BBY saw Chancellor Tarsus Valorum—seeking a new answer—preside over a remarkable dismantling of central authority. Valorum did away with the Republic's standing armed forces and reorganized its millions of sectors into 1,024 regional sectors, each with its own Senator—though once again a series of exemptions favored the ancient founding worlds and the powerful Core and Colonies.” [p.3]
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“The known galaxy includes nearly a billion inhabited star systems, from uncharted settlements set up by smugglers to megalopolis worlds where scarcely a meter of untouched ground remains. Nearly seventy million of those star systems were sufficiently populated for representation of some sort in the Galactic Empire, a vast bureaucracy responsible for the affairs of more than one hundred quadrillion beings—and the apogee of centralized power.” [p.8]
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The [Rususan] Reformations included a moratorium on the creation of new sectors, but those searching for a better life kept pushing beyond the Republic borders, reclaiming former republic systems and settling new worlds. Some of these systems were annexed by existing sectors, which caused outlying ones to swell to gargantuan proportions. Some systems became territories governed by the Republic bureaucracy and denied direct Senate representation on the grounds that Senators were obligated to represent not only their direct constituents but all Republic citizens. And some systems were grouped together in a variety of special zones and districts, becoming de facto possessions of "functional constituencies" that were represented in the Senate or megacorps that weren't.” [p.9]
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After becoming Emperor, Palpatine repealed the moratorium on new regional sectors, creating many new ones by dividing up existing ones and grouping together freestanding subsectors. Under the Empire, unincorporated territories that petitioned for admission became new freestanding subsectors, and were added to existing or newly created regional sectors as events warranted. [p.9]