Star system
HR 4221
Economy
Government
Allegiance
Independent
Star type
Class B star Scoopable
Coordinates
503.22 / 18.09 / 152.22
Permit required
No
Powerplay
Unoccupied
Powers
︎ HR 4221 - Class B star
Body distance-Solar masses4.9063Solar radius3.4523︎ HR 4221 2 - Class III gas giant
Body distance1,782 LsRing/belt typeMetal rich (Pristine)
Rocky (Pristine)Earth masses556.5290Radius76,664 kmGravity3.85 gSurface temperature577 K (304°C/579°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ HR 4221 1 - Class IV gas giant
Body distance1,809 LsRing/belt typeMetal rich (Pristine)Earth masses1,784.4500Radius73,888 kmGravity13.28 gSurface temperature834 K (561°C/1,042°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ HR 4221 1 a - Rocky body Landable
Body distance1,805 LsEarth masses0.0065Radius1,307 kmGravity0.15 gSurface temperature582 K (309°C/588°F)Surface pressure0.00 atmVolcanismMetallic magmaAtmosphereTerraforming︎ Polonium: 0.5%︎ Cadmium: 1.5%︎ Tungsten: 1.0%︎ Chromium: 8.6%︎ Germanium: 5.5%︎ Zinc: 5.2%︎ Carbon: 15.7%︎ Iron: 19.0%︎ Nickel: 14.4%︎ Phosphorus: 10.0%︎ Sulphur: 18.6%︎ HR 4221 1 d - Rocky body Landable
Body distance1,807 LsEarth masses0.0124Radius1,616 kmGravity0.19 gSurface temperature540 K (267°C/513°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Antimony: 1.1%︎ Mercury: 0.8%︎ Tungsten: 1.0%︎ Chromium: 8.4%︎ Manganese: 7.7%︎ Zinc: 5.0%︎ Carbon: 15.3%︎ Iron: 18.6%︎ Nickel: 14.1%︎ Phosphorus: 9.8%︎ Sulphur: 18.2%︎ HR 4221 1 b - Rocky body
Body distance1,807 LsEarth masses0.0156Radius1,738 kmGravity0.21 gSurface temperature565 K (292°C/558°F)Surface pressure0.00 atmVolcanismMajor Rocky magmaAtmosphereSulphur dioxideTerraforming︎ HR 4221 1 c - Rocky body Landable
Body distance1,811 LsEarth masses0.0225Radius1,960 kmGravity0.24 gSurface temperature551 K (278°C/532°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Ruthenium: 1.2%︎ Molybdenum: 1.2%︎ Tin: 1.1%︎ Chromium: 8.6%︎ Germanium: 5.5%︎ Vanadium: 4.7%︎ Carbon: 15.6%︎ Iron: 19.0%︎ Nickel: 14.4%︎ Phosphorus: 10.0%︎ Sulphur: 18.6%︎ HR 4221 1 c a - Rocky body Landable
Body distance1,812 LsEarth masses0.0005Radius557 kmGravity0.06 gSurface temperature551 K (278°C/532°F)Surface pressure0.00 atmVolcanismMajor Silicate vapour geysersAtmosphereTerraforming︎ Antimony: 1.3%︎ Selenium: 3.2%︎ Mercury: 0.8%︎ Niobium: 1.2%︎ Chromium: 8.0%︎ Germanium: 6.0%︎ Carbon: 17.0%︎ Iron: 17.9%︎ Nickel: 13.5%︎ Phosphorus: 10.9%︎ Sulphur: 20.2%︎ HR 4221 3 - Class III gas giant
Body distance2,455 LsRing/belt typeMetal rich (Pristine)
Rocky (Pristine)Earth masses1,058.1100Radius76,463 kmGravity7.36 gSurface temperature593 K (320°C/607°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ HR 4221 3 a - Rocky body Landable
Body distance2,453 LsEarth masses0.0031Radius1,024 kmGravity0.12 gSurface temperature467 K (193°C/380°F)Surface pressure0.00 atmVolcanismMinor Metallic magmaAtmosphereTerraforming︎ Tellurium: 1.4%︎ Mercury: 0.8%︎ Tin: 1.1%︎ Chromium: 8.3%︎ Manganese: 7.6%︎ Zinc: 5.0%︎ Carbon: 15.2%︎ Iron: 18.5%︎ Nickel: 14.0%︎ Phosphorus: 9.8%︎ Sulphur: 18.1%︎ HR 4221 3 f - Rocky body Landable
Body distance2,454 LsEarth masses0.0032Radius1,032 kmGravity0.12 gSurface temperature446 K (172°C/342°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Selenium: 3.1%︎ Yttrium: 1.2%︎ Cadmium: 1.6%︎ Molybdenum: 1.3%︎ Manganese: 8.3%︎ Zirconium: 2.3%︎ Carbon: 16.6%︎ Iron: 20.1%︎ Nickel: 15.2%︎ Phosphorus: 10.6%︎ Sulphur: 19.7%︎ HR 4221 3 b - Rocky body
Body distance2,454 LsEarth masses0.0017Radius831 kmGravity0.10 gSurface temperature460 K (186°C/368°F)Surface pressure0.00 atmVolcanismMajor Rocky magmaAtmosphereSulphur dioxideTerraforming︎ HR 4221 3 c - Rocky body Landable
Body distance2,454 LsEarth masses0.0028Radius985 kmGravity0.12 gSurface temperature454 K (181°C/357°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Tellurium: 1.4%︎ Mercury: 0.8%︎ Tin: 1.1%︎ Manganese: 7.9%︎ Vanadium: 4.7%︎ Zinc: 5.2%︎ Carbon: 15.9%︎ Iron: 19.2%︎ Nickel: 14.5%︎ Phosphorus: 10.2%︎ Sulphur: 18.9%︎ HR 4221 3 e - Rocky body Landable
Body distance2,455 LsEarth masses0.0021Radius900 kmGravity0.11 gSurface temperature449 K (176°C/349°F)Surface pressure0.00 atmVolcanismMajor Silicate vapour geysersAtmosphereTerraforming︎ Antimony: 1.2%︎ Selenium: 2.9%︎ Molybdenum: 1.2%︎ Tin: 1.1%︎ Chromium: 8.5%︎ Manganese: 7.8%︎ Carbon: 15.6%︎ Iron: 18.9%︎ Nickel: 14.3%︎ Phosphorus: 10.0%︎ Sulphur: 18.5%︎ HR 4221 3 d - Rocky body Landable
Body distance2,455 LsEarth masses0.0026Radius960 kmGravity0.11 gSurface temperature449 K (176°C/349°F)Surface pressure0.00 atmVolcanismMajor Silicate vapour geysersAtmosphereTerraforming︎ Ruthenium: 1.2%︎ Mercury: 0.8%︎ Tungsten: 1.1%︎ Chromium: 8.6%︎ Vanadium: 4.7%︎ Zinc: 5.2%︎ Carbon: 15.8%︎ Iron: 19.2%︎ Nickel: 14.5%︎ Phosphorus: 10.1%︎ Sulphur: 18.8%︎ HR 4221 3 g - Rocky body Landable
Body distance2,461 LsEarth masses0.0032Radius1,034 kmGravity0.12 gSurface temperature441 K (168°C/335°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Selenium: 3.0%︎ Technetium: 0.7%︎ Molybdenum: 1.3%︎ Niobium: 1.3%︎ Manganese: 8.1%︎ Zinc: 5.3%︎ Carbon: 16.2%︎ Iron: 19.6%︎ Nickel: 14.8%︎ Phosphorus: 10.4%︎ Sulphur: 19.2%︎ HR 4221 4 - Class III gas giant
Body distance2,460 LsRing/belt typeRocky (Pristine)Earth masses10.9165Radius29,700 kmGravity0.50 gSurface temperature421 K (148°C/298°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ HR 4221 4 a - Rocky body Landable
Body distance2,460 LsEarth masses0.0018Radius855 kmGravity0.10 gSurface temperature427 K (154°C/310°F)Surface pressure0.00 atmVolcanismMinor Rocky magmaAtmosphereTerraforming︎ Tellurium: 1.4%︎ Mercury: 0.8%︎ Molybdenum: 1.2%︎ Chromium: 8.3%︎ Manganese: 7.7%︎ Zinc: 5.0%︎ Carbon: 15.2%︎ Iron: 18.5%︎ Nickel: 14.0%︎ Phosphorus: 9.7%︎ Sulphur: 18.1%︎ HR 4221 5 - Class III gas giant
Body distance3,521 LsRing/belt typeMetal rich (Pristine)
Rocky (Pristine)Earth masses105.5680Radius58,230 kmGravity1.27 gSurface temperature355 K (82°C/180°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ HR 4221 5 f - Rocky body Landable
Body distance3,516 LsEarth masses0.0003Radius493 kmGravity0.06 gSurface temperature353 K (80°C/176°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Technetium: 0.7%︎ Mercury: 0.8%︎ Niobium: 1.3%︎ Chromium: 8.4%︎ Manganese: 7.7%︎ Vanadium: 4.6%︎ Carbon: 15.4%︎ Iron: 18.7%︎ Nickel: 14.1%︎ Phosphorus: 9.9%︎ Sulphur: 18.4%︎ HR 4221 5 e - Rocky body Landable
Body distance3,516 LsEarth masses0.0005Radius575 kmGravity0.07 gSurface temperature353 K (80°C/176°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Antimony: 1.2%︎ Molybdenum: 1.3%︎ Tin: 1.2%︎ Arsenic: 2.5%︎ Germanium: 5.7%︎ Manganese: 8.1%︎ Carbon: 16.1%︎ Iron: 19.6%︎ Nickel: 14.8%︎ Phosphorus: 10.3%︎ Sulphur: 19.2%︎ HR 4221 5 b - Rocky body Landable
Body distance3,518 LsEarth masses0.0006Radius591 kmGravity0.07 gSurface temperature354 K (80°C/177°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Ruthenium: 1.2%︎ Selenium: 3.0%︎ Cadmium: 1.5%︎ Tin: 1.2%︎ Manganese: 8.1%︎ Zinc: 5.3%︎ Carbon: 16.0%︎ Iron: 19.6%︎ Nickel: 14.8%︎ Phosphorus: 10.3%︎ Sulphur: 19.1%︎ HR 4221 5 a - Rocky body Landable
Body distance3,519 LsEarth masses0.0003Radius463 kmGravity0.05 gSurface temperature354 K (81°C/178°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Antimony: 1.2%︎ Selenium: 3.1%︎ Mercury: 0.9%︎ Tungsten: 1.1%︎ Germanium: 5.9%︎ Vanadium: 5.0%︎ Carbon: 16.7%︎ Iron: 20.2%︎ Nickel: 15.3%︎ Phosphorus: 10.7%︎ Sulphur: 19.9%︎ HR 4221 5 g - Rocky body Landable
Body distance3,523 LsEarth masses0.0016Radius820 kmGravity0.10 gSurface temperature353 K (80°C/176°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Ruthenium: 1.2%︎ Cadmium: 1.5%︎ Niobium: 1.3%︎ Manganese: 7.9%︎ Vanadium: 4.7%︎ Zinc: 5.2%︎ Carbon: 15.7%︎ Iron: 19.2%︎ Nickel: 14.5%︎ Phosphorus: 10.1%︎ Sulphur: 18.7%︎ HR 4221 5 d - Rocky body Landable
Body distance3,523 LsEarth masses0.0004Radius498 kmGravity0.06 gSurface temperature353 K (80°C/176°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Tellurium: 1.4%︎ Cadmium: 1.5%︎ Mercury: 0.8%︎ Chromium: 8.5%︎ Manganese: 7.8%︎ Zirconium: 2.2%︎ Carbon: 15.7%︎ Iron: 19.0%︎ Nickel: 14.4%︎ Phosphorus: 10.0%︎ Sulphur: 18.6%︎ HR 4221 5 c - Rocky body Landable
Body distance3,523 LsEarth masses0.0005Radius570 kmGravity0.07 gSurface temperature353 K (80°C/176°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Selenium: 3.1%︎ Yttrium: 1.2%︎ Mercury: 0.9%︎ Tungsten: 1.1%︎ Manganese: 8.4%︎ Zirconium: 2.4%︎ Carbon: 16.7%︎ Iron: 20.3%︎ Nickel: 15.3%︎ Phosphorus: 10.7%︎ Sulphur: 19.9%︎ HR 4221 5 h - Rocky body Landable
Body distance3,524 LsEarth masses0.0012Radius740 kmGravity0.09 gSurface temperature353 K (80°C/176°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Tellurium: 1.5%︎ Cadmium: 1.6%︎ Tungsten: 1.1%︎ Arsenic: 2.6%︎ Manganese: 8.3%︎ Zirconium: 2.3%︎ Carbon: 16.6%︎ Iron: 20.2%︎ Nickel: 15.3%︎ Phosphorus: 10.7%︎ Sulphur: 19.8%︎ HR 4221 6 - High metal content world
Body distance4,835 LsEarth masses12.1277Radius13,418 kmGravity2.74 gSurface temperature2,282 K (2,009°C/3,648°F)Surface pressure21,959.83 atmVolcanismMajor Silicate vapour geysersAtmosphereHot Thick WaterTerraforming︎ HR 4221 6 a - Rocky body
Body distance4,835 LsEarth masses0.0010Radius692 kmGravity0.08 gSurface temperature301 K (28°C/82°F)Surface pressure0.00 atmVolcanismRocky magmaAtmosphereSulphur dioxideTerraforming︎ HR 4221 6 b - Rocky body Landable
Body distance4,836 LsEarth masses0.0007Radius628 kmGravity0.07 gSurface temperature301 K (28°C/82°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Polonium: 0.5%︎ Molybdenum: 1.2%︎ Tin: 1.1%︎ Chromium: 8.6%︎ Germanium: 5.5%︎ Zinc: 5.2%︎ Carbon: 15.6%︎ Iron: 19.1%︎ Nickel: 14.5%︎ Phosphorus: 10.0%︎ Sulphur: 18.6%