Star system
55 Ursae Majoris
Economy
Colony / Extraction
Government
Corporate
Allegiance
Independent
Star type
Class A star Scoopable
Coordinates
-3.16 / 178.28 / -70.78
Permit required
No
︎ 55 Ursae Majoris - Class A star
Body distance-Solar masses2.7930Solar radius1.9156︎ 55 Ursae Majoris 1 - High metal content world Landable
Body distance216 LsEarth masses2.0204Radius7,468 kmGravity1.47 gSurface temperature894 K (621°C/1,150°F)Surface pressure0.00 atmVolcanismMinor Metallic magmaAtmosphereTerraforming︎ Yttrium: 1.3%︎ Molybdenum: 1.4%︎ Tungsten: 1.2%︎ Chromium: 9.5%︎ Manganese: 8.7%︎ Zinc: 5.7%︎ Carbon: 12.5%︎ Iron: 21.1%︎ Nickel: 15.9%︎ Phosphorus: 8.0%︎ Sulphur: 14.8%︎ 55 Ursae Majoris 2 - High metal content world
Body distance495 LsEarth masses5.4579Radius9,854 kmGravity2.28 gSurface temperature2,540 K (2,266°C/4,112°F)Surface pressure2,669.52 atmVolcanismMajor Silicate vapour geysersAtmosphereHot Thick Carbon dioxideTerraforming︎ 55 Ursae Majoris 3 - Class III gas giant
Body distance683 LsEarth masses12.7813Radius15,516 kmGravity2.16 gSurface temperature494 K (221°C/430°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ 55 Ursae Majoris 4 - High metal content world Landable
Body distance687 LsEarth masses3.8026Radius8,918 kmGravity1.94 gSurface temperature503 K (230°C/446°F)Surface pressure0.00 atmVolcanismMajor Silicate vapour geysersAtmosphereTerraforming︎ Tellurium: 1.2%︎ Cadmium: 1.8%︎ Tin: 1.5%︎ Germanium: 4.8%︎ Vanadium: 5.6%︎ Zinc: 6.2%︎ Carbon: 13.6%︎ Iron: 23.0%︎ Nickel: 17.4%︎ Phosphorus: 8.7%︎ Sulphur: 16.2%︎ 55 Ursae Majoris 5 - Class III gas giant
Body distance883 LsEarth masses14.5736Radius18,797 kmGravity1.68 gSurface temperature435 K (162°C/323°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ 55 Ursae Majoris 7 - High metal content world
Body distance1,214 LsEarth masses4.0568Radius9,077 kmGravity2.00 gSurface temperature1,327 K (1,054°C/1,930°F)Surface pressure547.63 atmVolcanismMajor Silicate vapour geysersAtmosphereHot Thick Carbon dioxideTerraforming︎ 55 Ursae Majoris 8 - Class IV gas giant
Body distance1,602 LsEarth masses3,793.7100Radius64,068 kmGravity37.56 gSurface temperature1,220 K (947°C/1,737°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ 55 Ursae Majoris 9 a - Rocky body Landable
Body distance3,085 LsEarth masses0.0843Radius2,965 kmGravity0.39 gSurface temperature278 K (5°C/41°F)Surface pressure0.00 atmVolcanismAtmosphereThin Sulphur dioxideTerraforming︎ Polonium: 0.6%︎ Cadmium: 1.6%︎ Tin: 1.3%︎ Arsenic: 2.5%︎ Chromium: 9.5%︎ Zirconium: 2.5%︎ Carbon: 15.8%︎ Iron: 21.2%︎ Nickel: 16.0%︎ Phosphorus: 10.1%︎ Sulphur: 18.8%︎ 55 Ursae Majoris 10 a - Icy body
Body distance3,903 LsEarth masses0.1407Radius4,519 kmGravity0.28 gSurface temperature223 K (-50°C/-59°F)Surface pressure0.41 atmVolcanismAtmosphereSulphur dioxideTerraforming︎ 55 Ursae Majoris 6 - T Tauri star
Body distance1,250 LsSolar masses0.0078Solar radius0.0519︎ 55 Ursae Majoris 9 - T Tauri star
Body distance2,949 LsSolar masses0.0547Solar radius0.1744︎ 55 Ursae Majoris 10 - T Tauri star
Body distance3,956 LsSolar masses0.0586Solar radius0.1811︎ 55 Ursae Majoris 11 - High metal content world
Body distance5,220 LsEarth masses48.7505Radius16,068 kmGravity7.67 gSurface temperature236 K (-37°C/-35°F)Surface pressure53.71 atmVolcanismMajor Silicate vapour geysersAtmosphereThick NitrogenTerraforming