Star system
31 Cephei
Economy
Colony / Extraction
Government
Cooperative
Allegiance
Independent
Star type
Class F star Scoopable
Coordinates
-159.25 / 41.63 / -70.41
Permit required
No
︎ 31 Cephei - Class F star
Body distance-Solar masses1.2266Solar radius1.2027︎ 31 Cephei 1 - High metal content world Landable
Body distance201 LsEarth masses2.4890Radius7,938 kmGravity1.61 gSurface temperature832 K (559°C/1,038°F)Surface pressure0.00 atmVolcanismMinor Metallic magmaAtmosphereTerraforming︎ Tellurium: 1.2%︎ Cadmium: 1.7%︎ Niobium: 1.5%︎ Manganese: 9.3%︎ Zinc: 6.1%︎ Zirconium: 2.6%︎ Carbon: 13.5%︎ Iron: 22.4%︎ Nickel: 16.9%︎ Phosphorus: 8.6%︎ Sulphur: 16.1%︎ 31 Cephei 2 - High metal content world Landable
Body distance328 LsRing/belt typeMetallic (Major)
Metal rich (Major)Earth masses4.8214Radius9,526 kmGravity2.16 gSurface temperature651 K (378°C/712°F)Surface pressure0.00 atmVolcanismMajor Silicate vapour geysersAtmosphereTerraforming︎ Polonium: 0.6%︎ Tin: 1.4%︎ Tungsten: 1.2%︎ Chromium: 9.9%︎ Germanium: 4.6%︎ Zinc: 6.0%︎ Carbon: 13.3%︎ Iron: 22.0%︎ Nickel: 16.7%︎ Phosphorus: 8.5%︎ Sulphur: 15.8%︎ 31 Cephei 3 - High metal content world Landable
Body distance329 LsEarth masses2.1376Radius7,602 kmGravity1.50 gSurface temperature651 K (378°C/712°F)Surface pressure0.00 atmVolcanismMinor Metallic magmaAtmosphereTerraforming︎ Ruthenium: 1.3%︎ Cadmium: 1.6%︎ Tin: 1.4%︎ Chromium: 9.4%︎ Manganese: 8.6%︎ Zinc: 5.7%︎ Carbon: 12.6%︎ Iron: 20.8%︎ Nickel: 15.8%︎ Phosphorus: 8.0%︎ Sulphur: 14.9%︎ 31 Cephei 4 - High metal content world
Body distance457 LsEarth masses3.9680Radius9,038 kmGravity1.97 gSurface temperature1,968 K (1,695°C/3,083°F)Surface pressure556.60 atmVolcanismMajor Silicate vapour geysersAtmosphereHot Thick Carbon dioxideTerraforming︎ 31 Cephei 6 - High metal content world Landable
Body distance640 LsEarth masses4.5633Radius9,387 kmGravity2.10 gSurface temperature465 K (192°C/378°F)Surface pressure0.00 atmVolcanismMajor Silicate vapour geysersAtmosphereTerraforming︎ Yttrium: 1.3%︎ Mercury: 1.0%︎ Niobium: 1.5%︎ Arsenic: 2.1%︎ Chromium: 10.1%︎ Zinc: 6.1%︎ Carbon: 13.5%︎ Iron: 22.5%︎ Nickel: 17.0%︎ Phosphorus: 8.7%︎ Sulphur: 16.1%︎ 31 Cephei 5 - Class III gas giant
Body distance644 LsEarth masses13.3136Radius17,274 kmGravity1.81 gSurface temperature457 K (184°C/363°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ 31 Cephei 5 a - High metal content world Landable
Body distance645 LsEarth masses0.0123Radius1,514 kmGravity0.22 gSurface temperature465 K (192°C/378°F)Surface pressure0.00 atmVolcanismMajor Rocky magmaAtmosphereTerraforming︎ Selenium: 2.5%︎ Technetium: 0.8%︎ Mercury: 1.0%︎ Tungsten: 1.2%︎ Chromium: 10.1%︎ Zinc: 6.1%︎ Carbon: 13.6%︎ Iron: 22.6%︎ Nickel: 17.1%︎ Phosphorus: 8.7%︎ Sulphur: 16.2%︎ 31 Cephei 7 - Class IV gas giant
Body distance1,011 LsRing/belt typeMetal rich (Major)Earth masses3,891.7100Radius62,199 kmGravity40.88 gSurface temperature1,292 K (1,019°C/1,865°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ 31 Cephei 7 b - Rocky body Landable
Body distance1,008 LsEarth masses0.0107Radius1,537 kmGravity0.18 gSurface temperature534 K (261°C/501°F)Surface pressure0.00 atmVolcanismMinor Silicate vapour geysersAtmosphereTerraforming︎ Selenium: 3.0%︎ Tellurium: 1.5%︎ Cadmium: 1.5%︎ Niobium: 1.3%︎ Manganese: 8.0%︎ Vanadium: 4.8%︎ Carbon: 16.1%︎ Iron: 19.5%︎ Nickel: 14.7%︎ Phosphorus: 10.3%︎ Sulphur: 19.2%︎ 31 Cephei 7 a - Rocky body Landable
Body distance1,009 LsEarth masses0.0101Radius1,511 kmGravity0.18 gSurface temperature553 K (279°C/535°F)Surface pressure0.00 atmVolcanismMetallic magmaAtmosphereTerraforming︎ Yttrium: 1.1%︎ Cadmium: 1.5%︎ Mercury: 0.8%︎ Germanium: 5.5%︎ Manganese: 7.9%︎ Vanadium: 4.7%︎ Carbon: 15.9%︎ Iron: 19.1%︎ Nickel: 14.5%︎ Phosphorus: 10.1%︎ Sulphur: 18.9%︎ 31 Cephei 7 c - Rocky body
Body distance1,014 LsEarth masses0.0097Radius1,488 kmGravity0.18 gSurface temperature518 K (245°C/472°F)Surface pressure0.00 atmVolcanismMajor Rocky magmaAtmosphereSulphur dioxideTerraforming︎ 31 Cephei 8 - High metal content world
Body distance1,048 LsEarth masses2.8986Radius8,286 kmGravity1.72 gSurface temperature1,433 K (1,160°C/2,121°F)Surface pressure405.96 atmVolcanismMetallic magmaAtmosphereHot Thick Carbon dioxideTerraforming︎ 31 Cephei 9 - Class IV gas giant
Body distance1,382 LsRing/belt typeMetallic (Major)
Rocky (Major)Earth masses3,087.0300Radius66,025 kmGravity28.78 gSurface temperature1,005 K (732°C/1,349°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ 31 Cephei 9 f - Rocky body Landable
Body distance1,376 LsEarth masses0.0077Radius1,378 kmGravity0.16 gSurface temperature373 K (100°C/212°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Antimony: 1.2%︎ Cadmium: 1.6%︎ Mercury: 0.9%︎ Arsenic: 2.6%︎ Germanium: 5.8%︎ Vanadium: 5.0%︎ Carbon: 16.8%︎ Iron: 20.2%︎ Nickel: 15.3%︎ Phosphorus: 10.7%︎ Sulphur: 19.9%︎ 31 Cephei 9 e - Rocky body Landable
Body distance1,376 LsEarth masses0.0022Radius915 kmGravity0.11 gSurface temperature379 K (106°C/223°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Ruthenium: 1.2%︎ Cadmium: 1.6%︎ Niobium: 1.4%︎ Vanadium: 5.0%︎ Zinc: 5.5%︎ Zirconium: 2.3%︎ Carbon: 16.8%︎ Iron: 20.2%︎ Nickel: 15.3%︎ Phosphorus: 10.7%︎ Sulphur: 20.0%︎ 31 Cephei 9 a - Rocky body
Body distance1,380 LsEarth masses0.0027Radius974 kmGravity0.11 gSurface temperature437 K (164°C/326°F)Surface pressure0.00 atmVolcanismMajor Rocky magmaAtmosphereSulphur dioxideTerraforming︎ 31 Cephei 9 d - Rocky body Landable
Body distance1,381 LsEarth masses0.0060Radius1,272 kmGravity0.15 gSurface temperature384 K (111°C/231°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Tellurium: 1.4%︎ Cadmium: 1.5%︎ Niobium: 1.3%︎ Arsenic: 2.5%︎ Chromium: 8.7%︎ Zinc: 5.3%︎ Carbon: 16.0%︎ Iron: 19.3%︎ Nickel: 14.6%︎ Phosphorus: 10.2%︎ Sulphur: 19.0%︎ 31 Cephei 9 b - Rocky body Landable
Body distance1,382 LsEarth masses0.0028Radius990 kmGravity0.12 gSurface temperature420 K (147°C/297°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Ruthenium: 1.2%︎ Selenium: 3.0%︎ Tin: 1.2%︎ Tungsten: 1.1%︎ Chromium: 8.8%︎ Vanadium: 4.8%︎ Carbon: 16.2%︎ Iron: 19.5%︎ Nickel: 14.7%︎ Phosphorus: 10.4%︎ Sulphur: 19.2%︎ 31 Cephei 9 c - Rocky body Landable
Body distance1,387 LsEarth masses0.0022Radius916 kmGravity0.11 gSurface temperature393 K (120°C/247°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Tellurium: 1.4%︎ Cadmium: 1.4%︎ Mercury: 0.8%︎ Chromium: 8.3%︎ Manganese: 7.6%︎ Zinc: 5.0%︎ Carbon: 15.3%︎ Iron: 18.4%︎ Nickel: 13.9%︎ Phosphorus: 9.8%︎ Sulphur: 18.2%︎ 31 Cephei 9 g - Rocky body Landable
Body distance1,399 LsEarth masses0.0096Radius1,482 kmGravity0.18 gSurface temperature361 K (88°C/191°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Yttrium: 1.1%︎ Cadmium: 1.4%︎ Tungsten: 1.0%︎ Chromium: 8.3%︎ Manganese: 7.6%︎ Zinc: 5.0%︎ Carbon: 15.3%︎ Iron: 18.4%︎ Nickel: 13.9%︎ Phosphorus: 9.8%︎ Sulphur: 18.2%︎ 31 Cephei 10 - Class IV gas giant
Body distance1,808 LsRing/belt typeMetal rich (Major)Earth masses3,107.6600Radius65,930 kmGravity29.06 gSurface temperature989 K (716°C/1,320°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ 31 Cephei 10 b - Rocky body Landable
Body distance1,806 LsEarth masses0.0050Radius1,197 kmGravity0.14 gSurface temperature421 K (148°C/298°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Ruthenium: 1.2%︎ Mercury: 0.8%︎ Tin: 1.2%︎ Chromium: 8.6%︎ Germanium: 5.5%︎ Vanadium: 4.7%︎ Carbon: 15.7%︎ Iron: 19.1%︎ Nickel: 14.4%︎ Phosphorus: 10.1%︎ Sulphur: 18.7%︎ 31 Cephei 10 c - Rocky body Landable
Body distance1,806 LsEarth masses0.0097Radius1,490 kmGravity0.18 gSurface temperature402 K (129°C/263°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Tellurium: 1.4%︎ Niobium: 1.3%︎ Tin: 1.1%︎ Chromium: 8.5%︎ Germanium: 5.4%︎ Zinc: 5.1%︎ Carbon: 15.6%︎ Iron: 18.8%︎ Nickel: 14.2%︎ Phosphorus: 10.0%︎ Sulphur: 18.6%︎ 31 Cephei 10 a - Rocky body Landable
Body distance1,807 LsEarth masses0.0020Radius891 kmGravity0.10 gSurface temperature434 K (161°C/321°F)Surface pressure0.00 atmVolcanismMinor Metallic magmaAtmosphereTerraforming︎ Tellurium: 1.5%︎ Niobium: 1.4%︎ Tungsten: 1.1%︎ Arsenic: 2.6%︎ Chromium: 9.0%︎ Zirconium: 2.3%︎ Carbon: 16.6%︎ Iron: 20.0%︎ Nickel: 15.1%︎ Phosphorus: 10.6%︎ Sulphur: 19.7%︎ 31 Cephei 11 - Class IV gas giant
Body distance1,862 LsRing/belt typeMetal rich (Major)
Rocky (Major)Earth masses3,079.6700Radius66,025 kmGravity28.71 gSurface temperature981 K (708°C/1,307°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ 31 Cephei 11 c - Rocky body Landable
Body distance1,864 LsEarth masses0.0049Radius1,190 kmGravity0.14 gSurface temperature386 K (113°C/235°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Technetium: 0.7%︎ Molybdenum: 1.2%︎ Tungsten: 1.0%︎ Chromium: 8.4%︎ Manganese: 7.7%︎ Vanadium: 4.6%︎ Carbon: 15.5%︎ Iron: 18.6%︎ Nickel: 14.1%︎ Phosphorus: 9.9%︎ Sulphur: 18.4%︎ 31 Cephei 11 b - Rocky body Landable
Body distance1,864 LsEarth masses0.0068Radius1,324 kmGravity0.16 gSurface temperature400 K (127°C/260°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Ruthenium: 1.1%︎ Cadmium: 1.4%︎ Niobium: 1.3%︎ Chromium: 8.3%︎ Manganese: 7.6%︎ Zinc: 5.0%︎ Carbon: 15.2%︎ Iron: 18.4%︎ Nickel: 13.9%︎ Phosphorus: 9.8%︎ Sulphur: 18.1%︎ 31 Cephei 11 a - Rocky body Landable
Body distance1,874 LsEarth masses0.0038Radius1,094 kmGravity0.13 gSurface temperature448 K (175°C/347°F)Surface pressure0.00 atmVolcanismMajor Silicate vapour geysersAtmosphereTerraforming︎ Selenium: 3.2%︎ Tellurium: 1.5%︎ Cadmium: 1.6%︎ Molybdenum: 1.3%︎ Arsenic: 2.7%︎ Zinc: 5.6%︎ Carbon: 17.0%︎ Iron: 20.5%︎ Nickel: 15.5%︎ Phosphorus: 10.9%︎ Sulphur: 20.2%︎ 31 Cephei 12 a - Class III gas giant
Body distance2,321 LsRing/belt typeMetal rich (Major)Earth masses383.6840Radius74,626 kmGravity2.80 gSurface temperature305 K (31°C/89°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ 31 Cephei 13 a - Gas giant with water-based life
Body distance3,480 LsRing/belt typeMetal rich (Major)Earth masses7.0662Radius29,730 kmGravity0.33 gSurface temperature213 K (-60°C/-77°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ 31 Cephei 14 - High metal content world
Body distance4,657 LsEarth masses55.2679Radius16,439 kmGravity8.31 gSurface temperature1,678 K (1,404°C/2,560°F)Surface pressure176,399.70 atmVolcanismMajor Silicate vapour geysersAtmosphereHot Thick WaterTerraforming︎ 31 Cephei 12 - Class Y star (brown dwarf)
Body distance2,355 LsSolar masses0.0195Solar radius0.0803︎ 31 Cephei 13 - Class Y star (brown dwarf)
Body distance3,405 LsSolar masses0.0195Solar radius0.0910