A community for military sci-fi & space opera roleplaying

User Tools

Site Tools


Liber System

A small yellow star with a small blue marble orbiting it nearly one hundred light years from Yamatai, the 'view' of this small unassuming system is veiled by the eastern most arm of the Katsuko Nebula. Like it's nearby neighbor systems this system has been left unexplored.

Unknown to the societies to the galactic west a small population of humanity has called the planets orbiting this small yellow star home for nearly the last 500 years. The product of a plan of escape during the dark days of the Black Claw Empire, what started as a large group of ships home to a few million souls as expanded across the star system over the system with a population of a few billion. Now with the recent rediscovery of ancient faster then light travel the possibility of their discovery has been elevated.

Star Data

Type G2V G-Type Yellow Star
Stellar Mass 1.0 Solar Masses
Stellar Luminosity 1.00
Age 2.107 billion years


A small rocky ball of rock and iron, Ignis is the closest planet to the Liber system's star and represents the hottest planet in the system with surface temperatures on the day side hot enough to melt lead. This airless world is tidally locked, with one side almost entirely facing the star's broiling heat and the other almost entirely left in the cold of space.

Despite it's extremes however, Ignis's metal rich crust leaves a valuable profit to be made to any entrepreneurial industries willing to brave the planet's hostile surface.

Planet typeTidally locked, Rocky, Low-G, Hot and Airless
Distance from primary star4.8E+007 KM0.323 AU
Mass1.1E+023Kg0.019 Earth masses
Surface gravity256.1 cm/sec20.26 Earth gees
Mean Surface temperature199.3° Celcius, 390.7° Fahrenheit
Normal temperature rangeNight: -187.8° C, -306.0° F Day: 404.8° C, 760.6° F
Equatorial radius1721.8 Km0.27 Earth radii
Density5.32 grams/cc0.96 Earth densities
Eccentricity of orbit0.033
Escape Velocity3.0 Km/sec
Axial tilt23°
Length of year66.97 Earth days
Length of day1607.35 hours


Essentially a slightly 'cooler' (being a relative term) version of Ignis, Estus is also a lifeless hot rock in the inner system. Like it's closer compatriot it is also tidally locked, one side of the planet eternally roasting in the star's light and the other eternally frozen. Also, like Ignis, it's crust is rich in easily exploited metallic ores.

Planet typeRocky, Tidally Locked, Low-G, Hot, Airless
Distance from primary star5.7E+007 KM0.382 AU
Mass1.1E+024Kg0.179 Earth masses
Surface gravity543.4 cm/sec20.55 Earth gees
Mean Surface temperature161.2° Celcius, 322.1° Fahrenheit
Normal temperature rangeNight: -208.9° C, -343.9° F Day:361.4° C, 682.6° F
Equatorial radius3621.5 Km0.57 Earth radii
Density5.37 grams/cc0.97 Earth densities
Eccentricity of orbit0.029
Escape Velocity6.3 Km/sec
Axial tilt24°
Length of year86.20 Earth days
Length of day2068.91 hours


If Liber had a hell it would be Raska. A world of vast volcanic events and a runaway greenhouse effect, Raska is inherently hostile to all forms of life. The planet's atmosphere, flooded with vast amounts of carbon dioxide and various other volcanic gases chokes the world in a thick impermeable layer of yellow acid clouds. The surface of the planet as a result is insanely hostile, extreme atmospheric pressure and heat equivalent to an unprotected person standing next to a starship exhaust.

Planet typeVenusian, Hot, Arid, Cloudy, Boiling ocean, Unbreathably thick atmosphere
Distance from primary star1.1E+008 KM0.760 AU
Mass3.2E+024Kg0.529 Earth masses
Surface gravity786.5 cm/sec20.80 Earth gees
Surface pressure39732 millibars39.213 Earth atmospheres
Mean Surface temperature288.7° Celcius, 551.7° Fahrenheit
Normal temperature rangeNight: 280.7° C, 537.3° FDay: 295.7° C, 564.2° F
Equatorial radius5180.5 Km0.81 Earth radii
Density5.43 grams/cc0.98 Earth densities
Eccentricity of orbit0.093
Escape Velocity9.0 Km/sec
Atmospheric GasesNH3, H2O, Ne, N2, CO, NO, O2, H2S…
Axial tilt29°
Length of year241.80 Earth days
Length of day21.65 hours
Cloud Cover Percentage 100.0


The systems sole terrestrial planet, it was the original colony where the first arrivals to Liber landed and restarted their civilization. It has three large continental bodies, one of which is partially frozen under the southern pole. Over 80 percent of the planet is covered by water, this vast hydrosphere driving a powerful weather system that originally hampered colonization. In recent years the population has fallen as more and more make their way into space to colonize the rest of the Liber system.

Planet typeTerrestrial, wet, thick atmosphere (N2, O2, He - breathable)
Distance from primary star1.6E+008 KM1.099 AU
Mass9.7E+024Kg 1.629 Earth masses
Surface gravity1163.7 cm/sec21.19 Earth gees
Surface pressure2688 millibars2.653 Earth atmospheres
Mean Surface temperature13.9° Celcius, 56.9° Fahrenheit
Normal temperature rangeNight: 11.2° C, 52.2° FDay: 16.3° C, 61.4° F
Equatorial radius7472.0 Km1.2 Earth radii
Density5.57 grams/cc1 Earth densities
Eccentricity of orbit0.014
Escape Velocity13.2 Km/sec
Atmoshperic GassesNitrogen 79.9%, Oxygen 19.8%, Trace amounts of CH4, NH3, H2O, Ne, N2
Axial tilt26°
Length of year421.01 Earth days
Length of day14.18 hours
Hydrosphere percentage84.3
Cloud cover percentage 58.3
Ice cover percentage2.3


Roth is the second habited planet of the Liber system. Centuries of terraforming efforts to thicken the atmosphere have recently allowed the inhabitants to go outside of the small outposts that existed without pressure suits. Oxygen generators and modified oxygen producing planetkon from Liber have produced enough of a concentration of oxygen where only a respirator is needed thanks to the large level of dust in the air.

Planet typeMartian, Low-G, Cold
Distance from primary star2.4E+008 KM1.600 AU
Mass9.7E+023Kg0.162 Earth masses
Surface gravity526.0 cm/sec20.54 Earth gees
Surface pressure623 millibars0.622 Earth atmospheres
Mean Surface temperature-13.9° Celcius, 6.98° Fahrenheit
Normal temperature rangeNight: -16.8° C, 1.78° FDay: 10 ° C, 50° F
Equatorial radius3507.8 Km0.55 Earth radii
Density5.37 grams/cc0.97 Earth densities
Eccentricity of orbit0.061
Escape Velocity6.1 Km/sec
Atmospheric GassesNitrogen 70.9%, Oxygen 12.8%, CO2 13%, Trace amounts of CH4, NH3, H2O, Ne, N2
Axial tilt33°
Length of year739.14 Earth days
Length of day21.03 hours
Cloud cover percentage24.3%
Ice cover percentage17.1


Planet typeCold, Icy, Arid, Cloudless, Thin atmosphere
Distance from primary star3E+008 KM1.988 AU
Mass3.3E+024Kg0.550 Earth masses
Surface gravity796.9 cm/sec20.81 Earth gees
Surface Pressure306 millibars0.302 Earth atmospheres
Mean Surface temperature-107.7° Celcius, -161.9° Fahrenheit
Normal temperature rangeNight:-112.7° C, -170.9° F Day:-103.0° C, -153.4° F
Equatorial radius5245.9 Km0.82 Earth radii
Density5.44 grams/cc0.98 Earth densities
Eccentricity of orbit0.023
Escape Velocity9.1 Km/sec
Atmospheric Gases He, N, O, CH4, NH3, H2O, Ne, N2…
Axial tilt35°
Length of year1023.94 Earth days
Length of day16.99 hours
Ice cover percentage 86.6


Planet typeJovian Gas Giant
Distance from primary star4.8E+008 KM3.182 AU
Mass1.5E+026Kg25.922 Earth masses
Equatorial radius30149.7 Km4.7 Earth radii
Density1.35 grams/cc0.24 Earth densities
Eccentricity of orbit0.033
Escape Velocity26.2 Km/sec
Axial tilt40°
Length of year2073.02 Earth days
Length of day12.12 hours
Moons4 Satellites, 18 Captured Asteroids


Planet typeMartian, Low-G, Cold, Icy, Arid, Cloudless, Unbreathably thin atmosphere
Distance from primary star6.9E+008 KM4.602 AU
Mass1.1E+024Kg0.192 Earth masses
Surface gravity311.5 cm/sec20.32 Earth gees
Surface pressure20 millibars0.020 Earth atmospheres
Mean Surface temperature -150.9° Celcius, -239.7° Fahrenheit
Normal temperature rangeNight:-163.4° C, -262.1° FDay:-138.7° C, -217.6° F
Equatorial radius4951.7 Km0.78 Earth radii
Density2.25 grams/cc0.41 Earth densities
Eccentricity of orbit0.001
Escape Velocity5.6 Km/sec
Atmospheric GasesH2, He, N, O, CH4, NH3, H2O, Ne…
Axial tilt 40°
Length of year3605.41 Earth days
Length of day27.15 hours
Ice cover percentage 18.1


Planet typeSub-Jovian
Distance from primary star 8.2E+008 KM 5.454 AU
Mass 6.5E+025Kg 10.807 Earth masses
Equatorial radius 24431.9 Km 3.8 Earth radii
Density 1.06 grams/cc 0.19 Earth densities
Eccentricity of orbit 0.075
Escape Velocity 18.8 Km/sec
Atmospheric Gases H, H2, He, N, O, CH4, NH3, H2O…
Axial tilt| 22°
Length of year 4652.23 Earth days
Length of day 15.21 hours
Moons9 Satellites, 18 captured asteroids


Planet type Jovian
Distance from primary star 1.4E+009 KM 9.658 AU
Mass 6.8E+027Kg 1140.669 Earth masses
Equatorial radius 99728.3 Km 16 Earth radii
Density 1.64 grams/cc 0.3 Earth densities
Eccentricity of orbit 0.136
Escape Velocity 95.5 Km/sec
Atmospheric Gases H, H2, He, N, O, CH4, NH3, H2O…
Axial tilt 39°
Length of year 10945.03 Earth days
Length of day 6.04 hours
Moons2 Satellites, 8 captured asteroids

Free Point

Planet type Rocky, Low-G, Cold, Airless
Distance from primary star 3E+009 KM 20.030 AU
Mass 2E+024Kg 0.329 Earth masses
Surface gravity 375.0 cm/sec2 0.38 Earth gees
Surface temperature -214.2° Celcius,-353.6° Fahrenheit
Normal temperature range Night -220.7° C -365.2° F Day -207.8° C -342.0° F
Equatorial radius 5915.8 Km 0.93 Earth radii
Density 2.27 grams/cc 0.41 Earth densities
Eccentricity of orbit 0.013
Escape Velocity 6.7 Km/sec
Axial tilt 58°
Length of year 32743.36 Earth days
Length of day 24.75 hours
Ice cover percentage 0.1


Planet type Rocky, Low-G, Cold, Airless
Distance from primary star 4.2E+009 KM 28.099 AU
Mass 1.8E+024Kg 0.303 Earth masses
Surface gravity 364.6 cm/sec2 0.37 Earth gees
Surface temperature -223.4° Celcius -370.2° Fahrenheit
Normal temperature range Night -228.9° C -380.0° F Day -217.9° C -360.2° F
Equatorial radius 5759.3 Km 0.9 Earth radii
Density 2.27 grams/cc 0.41 Earth densities
Eccentricity of orbit 0.141
Escape Velocity 6.5 Km/sec
Axial tilt 54°
Length of year 54405.37 Earth days
Length of day 25.10 hours
Ice cover percentage 0.1

Far Point

Planet type Sub-Jovian
Distance from primary star 6.6E+009 KM 43.784 AU
Mass 1.3E+025Kg 2.226 Earth masses
Equatorial radius 18332.5 Km 2.9 Earth radii
Density 0.52 grams/cc 0.093 Earth densities
Eccentricity of orbit 0.245
Escape Velocity 9.8 Km/sec
Axial tilt 38°
Length of year 105821.48 Earth days
Length of day 25.15 hours
Moons3 Satellites, 10 Captured asteroids
system/liber_system.txt · Last modified: 2014/04/16 16:01 (external edit)