Esquarium
| Orbital characteristics | |
|---|---|
| 5670000 km (3520000 mi) | |
| Eccentricity | ~0 |
| 27.3 d (0.90 months) | |
| Satellite of | Aurorum |
| Physical characteristics | |
Mean radius | 6371 km (3959 mi) |
| 5.101 × 108 km2 | |
| Volume | 1.083 × 1012 km3 |
| Mass | 5.97 × 1024 kg |
Mean density | 5.51 g/cm3 |
| 9.807 m/s2 | |
| 11.2 km/s | |
| 0.997 d | |
| 156.56° | |
| Albedo | 0.306 (Bond) |
| Atmosphere | |
Surface pressure | 1 atm (100 kPa) |
Esquarium is the outermost major satellite of Aurorum, and the only astronomical object in the Universe known to harbour life. Located within the circumstellar habitable zone alongside Aurorum and its other satellites, the greenhouse effect of the atmosphere of Esquarium results in it being the only celestial body with confirmed permanent presence of liquid water in significant quantity.
Believed to have formed approximately 4.6 billion years ago, Esquarium is hypothesised to originate as a terrestrial planet orbiting the Sun directly, before being captudd by Aurorum during its inward migration as its largest satellite. This is supported by the large size of the world, as well as it being the only known spherical astronomical object in the Solar System to possess retrograde rotation, rotating counterclockwise while the Sun and all other major celestial bodies rotate clockwise. Current model in astrophysics suggest the retrograde rotation of Esquarium stabilises its axial tilt and thus climate, which might be necessary for a world to develop life.
Esquarium is the home world of humanity, the only known intelligent life in the Universe. Archaeological evidences suggest that anatomically modern humans first appeared about 200,000 years ago, the outward migration of which gradually supplementing other archaic humans as the dominant species of the world. Since the beginning of the Holocene epoch 12,000 years ago which marked the beginning of the Neolithic Revolution and agriculture, human activity has drastically changed the geography and biosphere of Esquarium through urbanisation and deforestation.
The contemporary Esquarium is divided in geopolitical entities, nation-states, administering territories. The world today is linked together through trade and globalised culture, and by international bodies working towards peace, such as the OEN and EC. However, it still remains a very volatile place but since the mid-20th century has seen an unprecedented period of relative peace brought by the advent of globalisation and nuclear deterrance. Significant tensions still remain between groups and ideologies competing for hegemony after a Volatile Century.
Geography
Physical
Human
Sociology
Societies
Countries
| Short and formal names | Capital | Population | Government |
|---|---|---|---|
 Ainin – Aininian Republic
|
Huimont | 256,792,875 | Parliamentary republic |
 Akai – Thearchy of the Great Kinh
|
Qung | 531,977,241 | Absolute monarchy |
 Aucuria – Aucurian Republic
|
Kalnaspilis | 11,360,284 | Presidential republic |
| Template:Country data Chenturia – Chenturia | Nefeyant | 27,792,875 | Absolute monarchy |
 Essenia – Essenian Free State
|
Júrava | 6,184,000 | Presidential republic |
 Haveno Sekura – Confederation of Haveno Sekura
|
Haveno Sekura City | 12,687,484 | Presidential republic |
 Hetfold – Fourth Republic of Hetfold
|
Levitzag | 130,013,654 | Parliamentary republic |
 Ianxia – Empire of Ianxia
|
Nanking | 117,946,562 | Constitutional monarchy |
 Inaltia – Inaltian State
|
Vascau | 31,032,012 | Constitutional monarchy |
 Karazawa – Kingdom of Karazawa
|
Zacapatu | 90,755,833 | Constitutional monarchy |
 Katranjiev – Kingdom of Katranjiev
|
Krasimir | 24,995,701 | Constitutional monarchy |
 Lecia – Lecian Workers' Republic
|
Szimóngôcz | 6,282,690 | Presidential republic |
 Maradu – Kingdom of Maradu
|
Akkara | 52,543,324 | Constitutional monarchy |
 Mespalia – Kingdom of Mespalia
|
Iouzzene | 35,265,835 | Constitutional monarchy |
 Milenka – Commonwealth of Milenka
|
Vladika | 102,694,311 | Parliamentary republic |
 Minh Vuat - Commonwealth of the Minh and Vuat
|
Hukang | 76,332,012 | Parliamentary republic |
 Montecara – State of Montecara
|
Montecara | 1,801,328 | Parliamentary republic |
| Nameria – United Republics of Nameria
|
Tula | 121,516,040 | Presidential republic |
 Siphria – Empire of Siphria
|
Aqrū | 32,518,120 | Absolute monarchy |
 Tuthina – Most Serene Empire
|
Sakan | 95,176,284 | Absolute monarchy |
 Wosrac – Kingdom of Wosrac
|
Mulford | 21,078,000 | Constitutional monarchy |
| Total | 1,588,848,728 | ||