Star system
HR 8666
Economy
Terraforming / Agriculture
Government
Corporate
Allegiance
Independent
Star type
Class F star Scoopable
Coordinates
-177.69 / -41.06 / -34.84
Permit required
No
︎ HR 8666 - Class F star
Body distance-Solar masses2.0508Solar radius1.5684︎ HR 8666 4 - High metal content world
Body distance1,472 LsEarth masses1.0495Radius6,172 kmGravity1.12 gSurface temperature804 K (530°C/987°F)Surface pressure163.47 atmVolcanismAtmosphereHot Thick Carbon dioxideTerraformingTerraforming︎ HR 8666 1 a - Rocky body Landable
Body distance1,068 LsEarth masses0.0042Radius1,127 kmGravity0.13 gSurface temperature308 K (35°C/95°F)Surface pressure0.00 atmVolcanismMetallic magmaAtmosphereTerraforming︎ Tellurium: 1.5%︎ Cadmium: 1.6%︎ Molybdenum: 1.3%︎ Arsenic: 2.6%︎ Manganese: 8.3%︎ Zirconium: 2.3%︎ Carbon: 16.6%︎ Iron: 20.2%︎ Nickel: 15.2%︎ Phosphorus: 10.6%︎ Sulphur: 19.7%︎ HR 8666 1 b - Rocky body Landable
Body distance1,069 LsEarth masses0.0059Radius1,261 kmGravity0.15 gSurface temperature308 K (35°C/95°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Ruthenium: 1.3%︎ Selenium: 3.2%︎ Cadmium: 1.6%︎ Tin: 1.2%︎ Zinc: 5.6%︎ Zirconium: 2.4%︎ Carbon: 17.1%︎ Iron: 20.7%︎ Nickel: 15.7%︎ Phosphorus: 10.9%︎ Sulphur: 20.3%︎ HR 8666 1 - Class Y star (brown dwarf)
Body distance1,070 LsSolar masses0.0117Solar radius0.0625︎ HR 8666 1 c - Rocky body Landable
Body distance1,073 LsEarth masses0.0097Radius1,490 kmGravity0.18 gSurface temperature308 K (35°C/95°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Antimony: 1.1%︎ Mercury: 0.8%︎ Niobium: 1.3%︎ Chromium: 8.3%︎ Manganese: 7.7%︎ Zinc: 5.0%︎ Carbon: 15.3%︎ Iron: 18.5%︎ Nickel: 14.0%︎ Phosphorus: 9.8%︎ Sulphur: 18.1%︎ HR 8666 1 d - Rocky body Landable
Body distance1,075 LsEarth masses0.0142Radius1,686 kmGravity0.20 gSurface temperature308 K (35°C/95°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Tellurium: 1.4%︎ Cadmium: 1.5%︎ Molybdenum: 1.2%︎ Chromium: 8.5%︎ Germanium: 5.4%︎ Zinc: 5.1%︎ Carbon: 15.5%︎ Iron: 18.8%︎ Nickel: 14.2%︎ Phosphorus: 9.9%︎ Sulphur: 18.4%︎ HR 8666 2 - Class III gas giant
Body distance1,087 LsRing/belt typeRocky (Pristine)Earth masses11.9428Radius20,808 kmGravity1.12 gSurface temperature303 K (30°C/87°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ HR 8666 3 - Class III gas giant
Body distance1,483 LsRing/belt typeRocky (Pristine)Earth masses25.7306Radius32,307 kmGravity1.00 gSurface temperature259 K (-14°C/6°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ HR 8666 3 a - Rocky body
Body distance1,483 LsEarth masses0.0003Radius455 kmGravity0.05 gSurface temperature743 K (469°C/877°F)Surface pressure9.28 atmVolcanismMinor Rocky magmaAtmosphereHot Thick WaterTerraforming︎ HR 8666 3 b - Rocky body
Body distance1,484 LsEarth masses0.0004Radius518 kmGravity0.06 gSurface temperature445 K (172°C/341°F)Surface pressure0.12 atmVolcanismAtmosphereWaterTerraforming︎ HR 8666 6 - Gas giant with water-based life
Body distance1,906 LsRing/belt typeMetal rich (Pristine)
Rocky (Pristine)Earth masses40.9085Radius41,938 kmGravity0.95 gSurface temperature230 K (-43°C/-46°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ HR 8666 6 a - Rocky body Landable
Body distance1,905 LsEarth masses0.0011Radius719 kmGravity0.08 gSurface temperature232 K (-41°C/-42°F)Surface pressure0.00 atmVolcanismMetallic magmaAtmosphereTerraforming︎ Technetium: 0.7%︎ Cadmium: 1.4%︎ Niobium: 1.3%︎ Chromium: 8.4%︎ Manganese: 7.7%︎ Vanadium: 4.6%︎ Carbon: 15.3%︎ Iron: 18.7%︎ Nickel: 14.1%︎ Phosphorus: 9.8%︎ Sulphur: 18.1%︎ HR 8666 5 - Gas giant with water-based life
Body distance1,915 LsRing/belt typeMetal rich (Pristine)
Rocky (Pristine)Earth masses57.0339Radius46,550 kmGravity1.07 gSurface temperature231 K (-42°C/-44°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ HR 8666 5 b - Rocky body
Body distance1,915 LsEarth masses0.0002Radius441 kmGravity0.05 gSurface temperature232 K (-41°C/-41°F)Surface pressure0.00 atmVolcanismMajor Rocky magmaAtmosphereSulphur dioxideTerraforming︎ HR 8666 5 a - Rocky body Landable
Body distance1,915 LsEarth masses0.0004Radius499 kmGravity0.06 gSurface temperature233 K (-40°C/-41°F)Surface pressure0.00 atmVolcanismMinor Metallic magmaAtmosphereTerraforming︎ Antimony: 1.2%︎ Cadmium: 1.5%︎ Molybdenum: 1.3%︎ Arsenic: 2.5%︎ Manganese: 8.1%︎ Zinc: 5.3%︎ Carbon: 16.1%︎ Iron: 19.6%︎ Nickel: 14.8%︎ Phosphorus: 10.3%︎ Sulphur: 19.2%︎ HR 8666 8 - Class IV gas giant
Body distance2,629 LsRing/belt typeMetal rich (Pristine)Earth masses3,186.4900Radius67,074 kmGravity28.79 gSurface temperature925 K (651°C/1,205°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ HR 8666 8 b - Rocky body
Body distance2,626 LsEarth masses0.0053Radius1,224 kmGravity0.14 gSurface temperature334 K (61°C/141°F)Surface pressure0.00 atmVolcanismMajor Rocky magmaAtmosphereSulphur dioxideTerraforming︎ HR 8666 8 a - Rocky body Landable
Body distance2,630 LsEarth masses0.0036Radius1,077 kmGravity0.13 gSurface temperature356 K (83°C/181°F)Surface pressure0.00 atmVolcanismMetallic magmaAtmosphereTerraforming︎ Tellurium: 1.4%︎ Niobium: 1.3%︎ Tungsten: 1.0%︎ Chromium: 8.3%︎ Germanium: 5.3%︎ Manganese: 7.6%︎ Carbon: 15.2%︎ Iron: 18.4%︎ Nickel: 13.9%︎ Phosphorus: 9.7%︎ Sulphur: 18.0%︎ HR 8666 8 c - Rocky body Landable
Body distance2,634 LsEarth masses0.0088Radius1,444 kmGravity0.17 gSurface temperature301 K (28°C/82°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Yttrium: 1.1%︎ Molybdenum: 1.2%︎ Tungsten: 1.0%︎ Germanium: 5.5%︎ Manganese: 7.9%︎ Zinc: 5.2%︎ Carbon: 15.7%︎ Iron: 19.1%︎ Nickel: 14.4%︎ Phosphorus: 10.1%︎ Sulphur: 18.7%︎ HR 8666 8 d - Rocky body Landable
Body distance2,636 LsEarth masses0.0087Radius1,436 kmGravity0.17 gSurface temperature288 K (15°C/58°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Yttrium: 1.1%︎ Mercury: 0.8%︎ Molybdenum: 1.2%︎ Chromium: 8.3%︎ Manganese: 7.7%︎ Zinc: 5.0%︎ Carbon: 15.3%︎ Iron: 18.6%︎ Nickel: 14.0%︎ Phosphorus: 9.8%︎ Sulphur: 18.2%︎ HR 8666 7 a - Rocky body Landable
Body distance2,685 LsEarth masses0.0031Radius1,024 kmGravity0.12 gSurface temperature289 K (16°C/60°F)Surface pressure0.00 atmVolcanismMinor Metallic magmaAtmosphereTerraforming︎ Tellurium: 1.4%︎ Molybdenum: 1.2%︎ Niobium: 1.3%︎ Germanium: 5.5%︎ Manganese: 7.8%︎ Zinc: 5.2%︎ Carbon: 15.6%︎ Iron: 19.0%︎ Nickel: 14.4%︎ Phosphorus: 10.0%︎ Sulphur: 18.6%︎ HR 8666 7 - Class Y star (brown dwarf)
Body distance2,688 LsSolar masses0.0195Solar radius0.0879︎ HR 8666 7 b - Rocky body Landable
Body distance2,692 LsEarth masses0.0024Radius938 kmGravity0.11 gSurface temperature277 K (4°C/40°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Ruthenium: 1.2%︎ Mercury: 0.9%︎ Tin: 1.2%︎ Arsenic: 2.5%︎ Chromium: 8.9%︎ Vanadium: 4.8%︎ Carbon: 16.2%︎ Iron: 19.7%︎ Nickel: 14.9%︎ Phosphorus: 10.4%︎ Sulphur: 19.3%︎ HR 8666 7 c - Rocky body
Body distance2,694 LsEarth masses0.0083Radius1,416 kmGravity0.17 gSurface temperature561 K (287°C/549°F)Surface pressure0.98 atmVolcanismAtmosphereHot WaterTerraforming︎ HR 8666 9 - Class IV gas giant
Body distance6,676 LsEarth masses3,268.4600Radius62,708 kmGravity33.78 gSurface temperature866 K (593°C/1,100°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ HR 8666 9 e - Rocky body
Body distance6,591 LsEarth masses0.0074Radius1,360 kmGravity0.16 gSurface temperature184 K (-89°C/-128°F)Surface pressure0.05 atmVolcanismAtmosphereThin Carbon dioxideTerraforming︎ Ruthenium: 1.2%︎ Cadmium: 1.5%︎ Molybdenum: 1.2%︎ Chromium: 8.5%︎ Germanium: 5.4%︎ Zinc: 5.1%︎ Carbon: 15.5%︎ Iron: 18.9%︎ Nickel: 14.3%︎ Phosphorus: 9.9%︎ Sulphur: 18.5%︎ HR 8666 9 f - Rocky body
Body distance6,604 LsEarth masses0.0184Radius1,835 kmGravity0.22 gSurface temperature189 K (-84°C/-119°F)Surface pressure0.09 atmVolcanismAtmosphereThin Carbon dioxideTerraforming︎ Selenium: 3.1%︎ Yttrium: 1.2%︎ Molybdenum: 1.3%︎ Niobium: 1.4%︎ Germanium: 5.8%︎ Zinc: 5.5%︎ Carbon: 16.4%︎ Iron: 20.1%︎ Nickel: 15.2%︎ Phosphorus: 10.5%︎ Sulphur: 19.5%︎ HR 8666 9 f a - Rocky body Landable
Body distance6,628 LsEarth masses0.0014Radius805 kmGravity0.09 gSurface temperature167 K (-106°C/-159°F)Surface pressure0.02 atmVolcanismAtmosphereThin Carbon dioxideTerraforming︎ Antimony: 1.2%︎ Mercury: 0.8%︎ Tungsten: 0.9%︎ Chromium: 7.7%︎ Germanium: 5.7%︎ Manganese: 7.1%︎ Carbon: 16.3%︎ Iron: 17.2%︎ Nickel: 13.0%︎ Phosphorus: 10.5%︎ Sulphur: 19.4%︎ HR 8666 9 c - Rocky body
Body distance6,642 LsEarth masses0.0036Radius1,077 kmGravity0.13 gSurface temperature154 K (-119°C/-182°F)Surface pressure0.00 atmVolcanismAtmosphereThin AmmoniaTerraforming︎ Yttrium: 1.1%︎ Niobium: 1.3%︎ Tin: 1.1%︎ Chromium: 8.5%︎ Germanium: 5.5%︎ Zinc: 5.1%︎ Carbon: 15.6%︎ Iron: 18.9%︎ Nickel: 14.3%︎ Phosphorus: 10.0%︎ Sulphur: 18.5%︎ HR 8666 9 a - Rocky body Landable
Body distance6,657 LsEarth masses0.0065Radius1,303 kmGravity0.15 gSurface temperature165 K (-108°C/-162°F)Surface pressure0.00 atmVolcanismAtmosphereThin AmmoniaTerraforming︎ Antimony: 1.2%︎ Cadmium: 1.5%︎ Niobium: 1.3%︎ Chromium: 8.8%︎ Zinc: 5.3%︎ Zirconium: 2.3%︎ Carbon: 16.0%︎ Iron: 19.5%︎ Nickel: 14.7%︎ Phosphorus: 10.3%︎ Sulphur: 19.1%︎ HR 8666 9 b - Rocky body
Body distance6,672 LsEarth masses0.0096Radius1,483 kmGravity0.18 gSurface temperature160 K (-113°C/-172°F)Surface pressure0.00 atmVolcanismAtmosphereThin AmmoniaTerraforming︎ Technetium: 0.7%︎ Mercury: 0.8%︎ Tungsten: 1.1%︎ Chromium: 8.6%︎ Germanium: 5.5%︎ Vanadium: 4.7%︎ Carbon: 15.8%︎ Iron: 19.2%︎ Nickel: 14.5%︎ Phosphorus: 10.1%︎ Sulphur: 18.8%︎ HR 8666 9 d - Rocky body Landable
Body distance6,682 LsEarth masses0.0039Radius1,102 kmGravity0.13 gSurface temperature182 K (-91°C/-131°F)Surface pressure0.03 atmVolcanismAtmosphereThin Carbon dioxideTerraforming︎ Ruthenium: 1.2%︎ Mercury: 0.9%︎ Molybdenum: 1.3%︎ Manganese: 8.2%︎ Vanadium: 4.9%︎ Zirconium: 2.3%︎ Carbon: 16.4%︎ Iron: 19.9%︎ Nickel: 15.0%︎ Phosphorus: 10.5%︎ Sulphur: 19.5%