List of planetary governments
Listed below are the planetary governments of the Orion Arm. A planetary government is defined as being an independent astropolitical entity governing an area on a single celestial body large enough to be spherical (i.e. asteroids do not count as planetary governments). This means that more than one planetary governments can exist on one body. A government that has colonised the natural satellites of its main body still counts as a planetary government.
| Short and Formal Names | System | Capital | Population | |
|---|---|---|---|---|
 |
Proxima United Proxima Federation |
Proxima Centauri system | Nova, Proxima | 4,590,290,000 |
 |
Vajah Confederation of Vajah |
Alpha Centauri system | Anuradhapura, Vajah | 1,335,080,000 |
 |
Vajah Rigel Republic |
Alpha Centauri system | Carson, Vajah | 795,390,000 |
 |
Aurora Aurora Colonial Republic |
Everest system | Jersey Bay, Aurora | 107,380,000 |
 |
Isfahan Union of Isfahan |
Gamma Virginis system | Ardashir, Isfahan | 104,610,000 |
 |
Endurance Federative Republic of Endurance |
Outreach system | Whitehaven, Endurance | 101,940,000 |
 |
Helvetica State of Helvetica |
Constance system (formerly 82 G. Eridani) |
New Geneva, Helvetica | 88,290,000 |
 |
New California New California Republic |
Vegas system | Burnett, New California | 42,040,000 |
 |
Sidewinder Republic of Sidewinder |
Antioch system | St. Peter, Sidewinder | 41,850,000 |
 |
Pan-Slavonia Pan-Slavic Federation |
Ostmark system | Dusha, Novaslavoniya | 39,510,000 |
 |
African Union | Kilimanjaro system | Umoja, Mandela | 31,140,000 |
 |
Mariner Republic | Sol system | Candor, Mars | 24,500,000 |
 |
Trafalgar Federal State of Trafalgar |
Antioch system | Samarkand, Trafalgar | 19,610,000 |
 |
Free Lunar Federation | Sol system | Gateway, Luna | 17,200,000 |
 |
Tyrrhena People's Republic of Tyrrhena |
Sol system | Ivanograd, Mars | 16,960,000 |
 |
Titan Republic of Titan |
Sol system | Ligeia City, Titan | 16,670,000 |
 |
Arcturus III Arcturus Federation |
Arcturus system | Hayk, Arcturus III | 16,560,000 |
| Bishop's World Colonial Republic of Bishop's World |
61 Cygni system | Connor, Bishop's World | 14,910,000 | |
| Ararat Union of Ararat |
Everest system | 12,490,000 | ||
 |
Wolfsberg Wolfsberg Planetary State |
Fernmark system | Wittgenstein, Wolfsberg | 8,940,000 |
| Owens Owens Federal Union |
Delaware system | Concordia, Owens | 7,317,000 | |
| Charybdis and Scylla Federation of Charybdis and Scylla |
Ilium system | Messina, Scylla | 6,270,000 | |
 |
Atlas Federation of Atlas |
Procyon system | 6,160,000 | |
 |
Europa Free Cities of Europa |
Sol system | Pacifica, Europa | 5,130,000 |
 |
Ireland Free Irish Republic |
Morrigan system | Killeshandra, Ciara | 3,980,000 |
| Orpheus Orpheus Consortium |
Calliope system | 3,790,000 | ||
 |
Pluto and Charon Confederation of Pluto and Charon |
Sol system | 2,880,000 | |
 |
Navajo Nation | Harmony system | 1,780,000 | |
 |
Vesta Democratic Republic of Vesta |
Sol system | New Yaeyama, Vesta | 1,420,000 |
 |
Iroquois Confederacy | Harmony system | 838,000 | |
 |
Celestia Republic of Celestia |
Sol system | Eden, Venus | 740,000 |
 |
Voivoda Union of Voivoda |
EV Lacertae system | Savezgrad, Voivoda | 687,000 |
| Devon Federated Colonies of Devon |
Alderney system | St. John, Devon | 635,000 | |
| Aras Aras Colonial Administration |
Aras system | Khashayar, Mazanderan | 496,000 | |
 |
Mercury United Mercurian Confederation |
Sol system | Asmodius, Mercury | 431,000 |
 |
Ojibwe Nation | Harmony system | 371,000 | |
 |
Shirvan Shirvan Caliphate |
Elbrus system | Mingachevir, Shirvan | 275,000 |
| Al-Israa' Emirate of Al-Israa' |
Alchiba system (formerly Alpha Corvi) |
Ajman, Al-Israa' | 141,000 | |
 |
Great Lakota Nation | Harmony system | 139,000 | |
| Cree Nation | Harmony system | 94,000 | ||
| Aghuank Union of Aghuank |
Artsakh system | Tigranakert, Aghuank | 92,000 | |
 |
Redgate Redgate Confederation |
Redgate system | Harlowstadt, Germania | 88,000 |
| Dodecanese Federation | Sol system | Colossus, Venus | 87,000 | |
| Skadi Skadi Colonial Territory |
Antioch system | Barnard Station, Skadi | 76,000 | |
| Anchorage III Colony of Anchorage III |
Anchorage system | 48,000 | ||
| Perseus IV Perseus IV Confederacy |
Perseus system (formerly Iota Persei) |
27,000 | ||
| Asgard Free City of Asgard |
Sol system | Asgard IV, Venus | 26,000 | |
| Cyrus Cyrus Colonial Union |
Indus system | Amarillo Station, Cyrus | 24,400 | |
| BX-101 b Colony of BX-101 b |
BX-101 system | Site 101-5, BX-101 b | 23,000 | |
| Aldebaran III United Northern Cities of Aldebaran |
Aldebaran system | Sanctuary, Aldebaran III | 21,000 | |
| Plenitude Colony of Plenitude |
Moeller system | 19,000 | ||
 |
Sahrawi Sahrawi Arab Democratic Republic |
Polisario system | Zemla, El Wali | 16,000 |
 |
Triumvirate Colonies of Triumvirate |
Fernmark system | Rhaetia Station, Coliseum | 14,000 |
| BX-104 d Colony of BX-104 d |
BX-104 system | Site 104-1, BX-104 d | 1,000 | |