Star system
HR 1257
Economy
High Tech / Refinery
Government
Democracy
Allegiance
Independent
Star type
Class F star Scoopable
Coordinates
13.66 / -64.84 / -94.56
Permit required
No
Powerplay
Exploited
Powers
Li Yong-Rui (Controlling)
︎ HR 1257 - Class F star
Body distance-Solar masses1.7930Solar radius1.4415︎ HR 1257 1 - High metal content world Landable
Body distance109 LsEarth masses0.7549Radius5,577 kmGravity0.99 gSurface temperature855 K (582°C/1,079°F)Surface pressure0.00 atmVolcanismRocky magmaAtmosphereTerraforming︎ Antimony: 1.0%︎ Cadmium: 1.8%︎ Mercury: 1.0%︎ Manganese: 9.4%︎ Vanadium: 5.6%︎ Zirconium: 2.7%︎ Carbon: 13.6%︎ Iron: 22.8%︎ Nickel: 17.3%︎ Phosphorus: 8.7%︎ Sulphur: 16.2%︎ HR 1257 1 a - Rocky body
Body distance109 LsEarth masses0.0497Radius2,504 kmGravity0.32 gSurface temperature855 K (582°C/1,079°F)Surface pressure0.00 atmVolcanismRocky magmaAtmosphereSulphur dioxideTerraforming︎ HR 1257 2 - High metal content world Landable
Body distance195 LsEarth masses0.5136Radius4,978 kmGravity0.84 gSurface temperature640 K (367°C/692°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Yttrium: 1.4%︎ Cadmium: 1.8%︎ Molybdenum: 1.5%︎ Vanadium: 5.7%︎ Zinc: 6.3%︎ Zirconium: 2.7%︎ Carbon: 14.0%︎ Iron: 23.3%︎ Nickel: 17.6%︎ Phosphorus: 9.0%︎ Sulphur: 16.7%︎ HR 1257 3 - High metal content world
Body distance352 LsEarth masses0.9279Radius5,950 kmGravity1.07 gSurface temperature1,091 K (817°C/1,503°F)Surface pressure16.03 atmVolcanismMajor Rocky magmaAtmosphereHot Thick Carbon dioxideTerraforming︎ HR 1257 3 a - Rocky body Landable
Body distance353 LsEarth masses0.0129Radius1,616 kmGravity0.20 gSurface temperature476 K (202°C/396°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Yttrium: 1.1%︎ Molybdenum: 1.3%︎ Tungsten: 1.1%︎ Chromium: 8.6%︎ Germanium: 5.1%︎ Manganese: 7.9%︎ Carbon: 14.6%︎ Iron: 19.2%︎ Nickel: 14.5%︎ Phosphorus: 9.3%︎ Sulphur: 17.3%︎ HR 1257 4 - High metal content world
Body distance635 LsEarth masses0.4625Radius4,820 kmGravity0.81 gSurface temperature571 K (298°C/569°F)Surface pressure1.53 atmVolcanismAtmosphereHot Sulphur dioxideTerraforming︎ HR 1257 5 - High metal content world
Body distance4,409 LsEarth masses4.1140Radius9,129 kmGravity2.01 gSurface temperature153 K (-120°C/-185°F)Surface pressure3.14 atmVolcanismMajor Silicate vapour geysersAtmosphereNitrogenTerraforming︎ HR 1257 7 - Ammonia world
Body distance6,126 LsEarth masses3.4297Radius8,685 kmGravity1.85 gSurface temperature270 K (-3°C/26°F)Surface pressure19.96 atmVolcanismMajor Silicate vapour geysersAtmosphereThick Ammonia and oxygenTerraforming︎ HR 1257 6 - Ammonia world
Body distance6,134 LsEarth masses4.0815Radius9,110 kmGravity2.00 gSurface temperature276 K (3°C/37°F)Surface pressure23.00 atmVolcanismMajor Silicate vapour geysersAtmosphereThick Ammonia and oxygenTerraforming