Last updated: June 24th 2026
Last updated: June 24th 2026
GENERAL GEOGRAPHY
The Dominion is a region of space located behind the Coalsack Nebula as seen from Earth's perspective, between 700 and 900 light-years from Earth. Its center is roughly 830 light-years from Earth.
As a stellar region within the Milky Way, it might be loosely associated to the lower Sco-Cen OB Association, as the region includes several bright young blue stars, such as CH Crucis and 251 G. Cen which are under 150 million years old.
It has no physical borders, but it is agreed to encompass a spheroidal volume ~240 light-years across, centered around the world of Argost, the Arrene homeworld.
ASTROMETRICS (and other statistics for nerds)
KEY SYSTEMS & WORLDS
Standard Dominion Astrographic math bases itself on Ykaga's ecliptic plane around Aa Rithel, the sun of the Arrene's homesystem. All coordinates and stellar positions in official astrometrics are given in Arrene Standard, here translated to standard light-Earth-years for viewer comfort.
| X, Y, Z | STAR ID | PLANET | NOTES| 0, 0, 0 | Aa Rithel | Argost | Capital of the Dominion| -14, -17, 49 | Osuna | Serenity | Homeworld of the Ygiv| 85, 36, 75 | Paza | Hokushoku | Homeworld of the Hoku| -130, -5, -50 | Ou'Papa | Ma'Okar | Homeworld of the Saffi| 98, 67, 28 | Udun | Dheghom | Capital of the Pancalestia
KEY SYSTEMS & WORLDS
Standard Dominion Astrographic math bases itself on Ykaga's ecliptic plane around Aa Rithel, the sun of the Arrene's homesystem. All coordinates and stellar positions in official astrometrics are given in Arrene Standard, here translated to standard light-Earth-years for viewer comfort.
THE ARRENE CORE| 0, 0, 0 | Aa Rithel | Argost | Capital of the Dominion| -15, -3, -3 | Endreka | New Horizon | --| -1, 13, -12 | Nizel | Hardpoint | major hoku population in the core| 2, -15, 13 | Festar | Radiant | --| -22, -18, 25 | Thosuo | Tributary | --| 28, -15, 28 | Forzai | Far Haven | --| -14, -17, 49 | Osuna | Rihuta | Homeworld of the Ygiv| -11, -7, 70 | Kaegaels | Stormport | Former Ygiv extractivist colony
THE HOKU EXPANSE| 85, 36, 75 | Paza | Hokushoku | Homeworld of the Hoku| 98, 52, 75 | Ninetali | Sideshoku | a stormy world| 91, 117, 91 | Kotalizapa | Voliloshoku | major moon of a trojan brown dwarf| 93, 94, 100 | Anaya | Anaya | Homeworld of the Nan-Nan| 73, 21, 76 | Muhori | Muhori | oldest Hoku colony, quadruple system| 134, 62, 59 | Dekutali | Dekushashoku | an icy world| 139, 19, 98 | Kakaili | Qekohoshoku | Former Chelok colony, oceanic tropical
THE QIRE SPACE| -66, -8, -66 | Qirurtar | Wayfarer's Orb | A hydrogen mining station around a gas giant| -105, -19, -34 | Riterkor | The Nightforge | Qire mining station?| -94, 9, 18 | Olgur | The Hothouse | Qire colony?| -81, -2, 49 | Surtirte | The Dustworld | Qire starport?| -130, -5, -50 | Ou'Papa | Ma'Okar | Homeworld of the Saffi
THE PANCALESTIA[click here for the comprehensive list (29)]
OTHER LOCATIONS FOR SPATIAL REFERENCE| 80, -155, 160 | Coalsack N. | -- | Major cold molecular cloud ~60ly wide| 229, -521, 467 | HD 117207 | Iir'rinr'ta | Homeworld of the Raydee| 284, -546, 556 | The Cradle | Nam Arde | Forgotten homeworld of the Chelok| 283, -544, 533 | Alpha Cen. | -- | Closest star to the Sun| 290, -540, 563 | Eps. Eridani | -- | --| 290, -539, 563 | Tau Ceti | -- | --
STELLAR POPULATION
While largely obscured by the Coalsack Nebula when seen from the Earth, it is possible to spot about ~270 of the 450 giant stars that populate the region (no seriously, it's cataloged.)
Extrapolated data from local surveys suggests the Dominion contains 69 ±4 thousand stars within its 240-light-year-wide volume. By type they are:53,000 red dwarfs9,000 orange dwarfs5,000 late Sun-like stars2,000 early Sun-like stars400 bright stars5 blue giants+ 8,000 rogue brown dwarfs
+ 890 white dwarfs+ 450 bright evolved stars
When compared to the solar vicinity, the average Dominion sector contains about 10x more bright stars, namely evolved stars such as blue subgiants and red giants, due it being contained within the meeting point of star-forming regions.Needless to say, traveling across this space is like going through a crystal chandelier. The brighter population of which serves rightfully so, as reference 'lighthouse stars' for astronavigation by its inhabitants.
This angle clearly frames all four domains of the Dominion's civilized systems, here UP is north from the capital Argost.
REGION HABITABILITYThe Dominion stellar catalogs register about 58,000 star systems contained within the spheroid. From which 5,700 systems may contain at least one Earth-sized planet in its habitable zone - its estimated that from those planets 600 of them exist around Sun-like stars (high-mass K to low-mass F) and could be considered Earth-analogues. If distributed at random, they could be separated by upwards of 25 light-years from each other.
Only FOUR planets across the Dominion are known to have independently produced technological civilizations. These are Argost, Ou'Papa, Hokushoku, and Rihuta.
Although, simple and 'inferior' forms of life aren't necessarily that rare either. A very common type of ecosphere that can be found in the Dominion is the 'Proterozoic Earth-Analogue'. A recurring frustration among xenobiologists is the tendency for unrelated ecosystems to repeatedly evolve crustacean-like body plans. This has proven beneficial to travelers, who consider "find the local crab" a remarkably reliable survival strategy.
Statistically speaking, it would be expected to exist about 40 exoplanets with an ESI of 0.90 or higher, and at least another ~150 worlds scoring 0.80-0.90 - which is very relevant given all four local species originate from Earth-analogues (technically speaking). Less than a quarter of these theoretical paradise worlds have been identified, however. Most colonial populations live in the few rocks scoring 0.70-0.95 right next to their homeworlds, depending on specific infrastructure tolerances, that means traveling 20-100 light-years in between colonies.
The densest pocket of civilization remains the Chelok-controlled Pancalestia, which have thoroughly scouted this region for the thirty-ish most-habitable planets in the region. A fair demonstration that perhaps, the Dominion might be more comfortable than one might initially deem, or did they just got lucky?
While largely obscured by the Coalsack Nebula when seen from the Earth, it is possible to spot about ~270 of the 450 giant stars that populate the region (no seriously, it's cataloged.)
Extrapolated data from local surveys suggests the Dominion contains 69 ±4 thousand stars within its 240-light-year-wide volume. By type they are:
53,000 red dwarfs
9,000 orange dwarfs
5,000 late Sun-like stars
2,000 early Sun-like stars
400 bright stars
5 blue giants
+ 8,000 rogue brown dwarfs
+ 890 white dwarfs
+ 450 bright evolved stars
When compared to the solar vicinity, the average Dominion sector contains about 10x more bright stars, namely evolved stars such as blue subgiants and red giants, due it being contained within the meeting point of star-forming regions.
Needless to say, traveling across this space is like going through a crystal chandelier. The brighter population of which serves rightfully so, as reference 'lighthouse stars' for astronavigation by its inhabitants.
This angle clearly frames all four domains of the Dominion's civilized systems, here UP is north from the capital Argost.
REGION HABITABILITY
The Dominion stellar catalogs register about 58,000 star systems contained within the spheroid. From which 5,700 systems may contain at least one Earth-sized planet in its habitable zone - its estimated that from those planets 600 of them exist around Sun-like stars (high-mass K to low-mass F) and could be considered Earth-analogues. If distributed at random, they could be separated by upwards of 25 light-years from each other.
Only FOUR planets across the Dominion are known to have independently produced technological civilizations. These are Argost, Ou'Papa, Hokushoku, and Rihuta.
Although, simple and 'inferior' forms of life aren't necessarily that rare either. A very common type of ecosphere that can be found in the Dominion is the 'Proterozoic Earth-Analogue'. A recurring frustration among xenobiologists is the tendency for unrelated ecosystems to repeatedly evolve crustacean-like body plans. This has proven beneficial to travelers, who consider "find the local crab" a remarkably reliable survival strategy.
Statistically speaking, it would be expected to exist about 40 exoplanets with an ESI of 0.90 or higher, and at least another ~150 worlds scoring 0.80-0.90 - which is very relevant given all four local species originate from Earth-analogues (technically speaking). Less than a quarter of these theoretical paradise worlds have been identified, however. Most colonial populations live in the few rocks scoring 0.70-0.95 right next to their homeworlds, depending on specific infrastructure tolerances, that means traveling 20-100 light-years in between colonies.
The densest pocket of civilization remains the Chelok-controlled Pancalestia, which have thoroughly scouted this region for the thirty-ish most-habitable planets in the region. A fair demonstration that perhaps, the Dominion might be more comfortable than one might initially deem, or did they just got lucky?
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