Star system
78 Ursae Majoris
Economy
Agriculture / Industrial
Government
Confederacy
Allegiance
Alliance
Star type
Class F star Scoopable
Coordinates
-35.03 / 72.53 / -19.94
Permit required
No
︎ 78 Ursae Majoris AB - Class A star
Body distance-Solar masses2.7031Solar radius1.8257︎ 78 Ursae Majoris A - Class F star
Body distance-Solar masses1.6445Solar radius1.3846︎ 78 Ursae Majoris A 1 - High metal content world Landable
Body distance191 LsEarth masses0.7209Radius5,505 kmGravity0.97 gSurface temperature648 K (375°C/706°F)Surface pressure0.00 atmVolcanismRocky magmaAtmosphereTerraforming︎ Ruthenium: 1.4%︎ Cadmium: 1.7%︎ Tungsten: 1.2%︎ Germanium: 4.7%︎ Manganese: 9.2%︎ Vanadium: 5.5%︎ Carbon: 13.2%︎ Iron: 22.2%︎ Nickel: 16.8%︎ Phosphorus: 8.5%︎ Sulphur: 15.7%︎ 78 Ursae Majoris A 1 a - Rocky body Landable
Body distance191 LsEarth masses0.0347Radius2,229 kmGravity0.28 gSurface temperature648 K (375°C/706°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Technetium: 0.7%︎ Cadmium: 1.5%︎ Mercury: 0.8%︎ Chromium: 8.7%︎ Manganese: 8.0%︎ Vanadium: 4.8%︎ Carbon: 14.7%︎ Iron: 19.4%︎ Nickel: 14.6%︎ Phosphorus: 9.4%︎ Sulphur: 17.4%︎ 78 Ursae Majoris A 2 - High metal content world Landable
Body distance255 LsEarth masses0.5617Radius5,116 kmGravity0.87 gSurface temperature566 K (293°C/559°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Ruthenium: 1.3%︎ Niobium: 1.5%︎ Tin: 1.4%︎ Arsenic: 2.1%︎ Chromium: 9.8%︎ Manganese: 9.0%︎ Carbon: 13.0%︎ Iron: 21.7%︎ Nickel: 16.4%︎ Phosphorus: 8.3%︎ Sulphur: 15.5%︎ 78 Ursae Majoris A 3 - High metal content world
Body distance389 LsEarth masses0.5398Radius5,054 kmGravity0.86 gSurface temperature491 K (218°C/425°F)Surface pressure1.01 atmVolcanismAtmosphereSulphur dioxideTerraforming︎ 78 Ursae Majoris A 4 - High metal content world
Body distance654 LsEarth masses0.5042Radius4,950 kmGravity0.84 gSurface temperature610 K (337°C/639°F)Surface pressure1.79 atmVolcanismAtmosphereHot Sulphur dioxideTerraforming︎ 78 Ursae Majoris A 5 - High metal content world
Body distance656 LsEarth masses0.4420Radius4,754 kmGravity0.80 gSurface temperature745 K (472°C/882°F)Surface pressure5.89 atmVolcanismAtmosphereHot Thick Carbon dioxideTerraforming︎ 78 Ursae Majoris A 6 - High metal content world
Body distance985 LsEarth masses0.7427Radius5,569 kmGravity0.97 gSurface temperature920 K (647°C/1,197°F)Surface pressure130.79 atmVolcanismRocky magmaAtmosphereHot Thick Carbon dioxideTerraforming︎ 78 Ursae Majoris A 7 - High metal content world
Body distance985 LsEarth masses0.7202Radius5,518 kmGravity0.96 gSurface temperature917 K (644°C/1,192°F)Surface pressure127.64 atmVolcanismRocky magmaAtmosphereHot Thick Carbon dioxideTerraforming︎ 78 Ursae Majoris B - Class K star
Body distance15,279 LsSolar masses0.7656Solar radius0.8282︎ 78 Ursae Majoris B 1 - High metal content world Landable
Body distance15,290 LsEarth masses1.2174Radius6,456 kmGravity1.19 gSurface temperature549 K (276°C/529°F)Surface pressure0.00 atmVolcanismMinor Silicate vapour geysersAtmosphereTerraforming︎ Antimony: 0.9%︎ Cadmium: 1.6%︎ Tungsten: 1.2%︎ Chromium: 9.6%︎ Germanium: 4.5%︎ Manganese: 8.8%︎ Carbon: 12.8%︎ Iron: 21.2%︎ Nickel: 16.1%︎ Phosphorus: 8.2%︎ Sulphur: 15.2%︎ 78 Ursae Majoris B 3 - Earth-like world
Body distance15,320 LsEarth masses2.0846Radius7,550 kmGravity1.49 gSurface temperature331 K (58°C/136°F)Surface pressure1.26 atmVolcanismMinor Metallic magmaAtmosphereSuitable for water-based lifeTerraformingTerraformed︎ 78 Ursae Majoris B 2 - High metal content world
Body distance15,551 LsEarth masses1.7061Radius7,126 kmGravity1.37 gSurface temperature1,139 K (866°C/1,591°F)Surface pressure265.58 atmVolcanismMinor Metallic magmaAtmosphereHot Thick Carbon dioxideTerraforming︎ 78 Ursae Majoris B 4 - High metal content world
Body distance15,664 LsEarth masses1.1409Radius6,333 kmGravity1.16 gSurface temperature1,378 K (1,105°C/2,020°F)Surface pressure3,425.37 atmVolcanismAtmosphereHot Thick WaterTerraformingTerraformable