Mercury ☿
Orbital characteristics
Orbit Distance: 57,909,277 km (0,39 AU)
Eccentricity: 0,205635934
Inclination: 7,00487°
Orbit Period: 87,97 Earth days
Mean Orbital Speed: 47.36 km/s
Physical characteristics
Mass: 330,104,000,000,000 billion kg (0,005 x Earth)
Mean Density: 5.427 g/cm3
Surface Gravity: 3.70 m/s2 (0.38 g)
Equatorial Diameter: 4,879 km
Polar Diameter: 15,329 km
Known Satellites: none
Notable Satellites: none
Surface Temperature: -173 to 427 C°
Mean Temperature: 167 C°
Atmosphere
Surface pressure: trace (≲ 0.5 nPa)
- Oxygen: 42 %
- Sodium: 29 %
- Hydrogen: 22 %
- Helium: 6 %
- Potassium: 0,5 %
First Record: 14th century BC
Recorded by: Assyrian astronomers
First human settlement: 2034 (Nobel Base)
Population (2210): 41 million
Orbital colonies: 29 million (21 stations)
Planetary surface: 12 million
History Overview
2034
Nobel Base (40 personnel) opened beneath Lu Hsun crater
2070
Orbital shipyard starts producing solar sail barges
2071
Project New Earth starts
2086
Most Project New Earth personnel reassigned to Venus
2090
New Earth administration begins transferring people back to Mercury.
2118
The Water Reserves Protection Measure by the Venusian Planetary Council cuts water shipments to Mercury in half.
2119
People of Mercury running out of water. Riots on Mercury.
Several Home Defense Force ships quietly defect to Mercury.
Several Home Defense Force ships quietly defect to Mercury.
2120
HDF ships attack Venus orbitals and start a blockade.
Venus surrenders to Mercuries conditions.
Mercurian Merchant Guild begins business with the captured Venus fleet of nearly 350 vessels.
Venus surrenders to Mercuries conditions.
Mercurian Merchant Guild begins business with the captured Venus fleet of nearly 350 vessels.