Star system
HR 6421
Economy
Industrial / Refinery
Government
Anarchy
Allegiance
Independent
Star type
Class A star Scoopable
Coordinates
-114.78 / 80.72 / -4.88
Permit required
No
︎ HR 6421 - Class A star
Body distance-Solar masses1.8906Solar radius1.5014︎ HR 6421 1 - Metal-rich body Landable
Body distance46 LsEarth masses1.2784Radius5,205 kmGravity1.92 gSurface temperature1,386 K (1,112°C/2,034°F)Surface pressure0.00 atmVolcanismMajor Metallic magmaAtmosphereTerraforming︎ Technetium: 1.3%︎ Cadmium: 2.9%︎ Molybdenum: 2.4%︎ Manganese: 15.2%︎ Vanadium: 9.1%︎ Zirconium: 4.3%︎ Iron: 36.9%︎ Nickel: 27.9%︎ HR 6421 2 - Metal-rich body Landable
Body distance84 LsEarth masses0.6288Radius4,225 kmGravity1.43 gSurface temperature1,031 K (758°C/1,396°F)Surface pressure0.00 atmVolcanismMetallic magmaAtmosphereTerraforming︎ Ruthenium: 2.3%︎ Cadmium: 2.8%︎ Tin: 2.4%︎ Manganese: 15.1%︎ Vanadium: 9.0%︎ Zirconium: 4.2%︎ Iron: 36.5%︎ Nickel: 27.6%︎ HR 6421 3 - High metal content world Landable
Body distance151 LsEarth masses1.9679Radius7,413 kmGravity1.46 gSurface temperature768 K (494°C/922°F)Surface pressure0.00 atmVolcanismMinor Metallic magmaAtmosphereTerraforming︎ Polonium: 0.6%︎ Selenium: 2.5%︎ Cadmium: 1.8%︎ Tungsten: 1.3%︎ Chromium: 10.3%︎ Germanium: 4.7%︎ Carbon: 13.6%︎ Iron: 22.9%︎ Nickel: 17.3%︎ Phosphorus: 8.7%︎ Sulphur: 16.2%︎ HR 6421 4 - Class III gas giant
Body distance1,770 LsRing/belt typeMetallic (Pristine)
Metal rich (Pristine)Earth masses1,636.2700Radius74,565 kmGravity11.96 gSurface temperature534 K (260°C/501°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ HR 6421 4 a - Rocky body Landable
Body distance1,769 LsEarth masses0.0008Radius652 kmGravity0.08 gSurface temperature310 K (37°C/98°F)Surface pressure0.00 atmVolcanismMajor Silicate vapour geysersAtmosphereTerraforming︎ Selenium: 2.9%︎ Tellurium: 1.4%︎ Molybdenum: 1.2%︎ Tin: 1.1%︎ Chromium: 8.5%︎ Manganese: 7.8%︎ Carbon: 15.5%︎ Iron: 18.9%︎ Nickel: 14.3%︎ Phosphorus: 9.9%︎ Sulphur: 18.4%︎ HR 6421 4 b - Rocky body Landable
Body distance1,771 LsEarth masses0.0055Radius1,237 kmGravity0.15 gSurface temperature277 K (4°C/39°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Tellurium: 1.4%︎ Cadmium: 1.4%︎ Molybdenum: 1.2%︎ Chromium: 8.3%︎ Manganese: 7.6%︎ Vanadium: 4.5%︎ Carbon: 15.2%︎ Iron: 18.5%︎ Nickel: 14.0%︎ Phosphorus: 9.7%︎ Sulphur: 18.0%︎ HR 6421 4 c - Icy body Landable
Body distance1,782 LsEarth masses0.0351Radius2,902 kmGravity0.17 gSurface temperature220 K (-54°C/-64°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Polonium: 0.3%︎ Selenium: 4.4%︎ Cadmium: 0.9%︎ Molybdenum: 0.7%︎ Manganese: 4.6%︎ Vanadium: 2.7%︎ Carbon: 23.7%︎ Iron: 11.1%︎ Nickel: 8.4%︎ Phosphorus: 15.1%︎ Sulphur: 28.1%︎ HR 6421 5 - Class IV gas giant
Body distance2,856 LsRing/belt typeMetallic (Pristine)
Rocky (Pristine)Earth masses3,634.6900Radius64,758 kmGravity35.23 gSurface temperature1,024 K (751°C/1,384°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ HR 6421 5 c - Rocky body
Body distance2,853 LsEarth masses0.0278Radius2,099 kmGravity0.26 gSurface temperature1,072 K (799°C/1,470°F)Surface pressure225.40 atmVolcanismMinor Metallic magmaAtmosphereHot Thick WaterTerraforming︎ HR 6421 5 b - Rocky body
Body distance2,854 LsEarth masses0.0375Radius2,310 kmGravity0.29 gSurface temperature1,101 K (827°C/1,521°F)Surface pressure277.79 atmVolcanismMinor Silicate vapour geysersAtmosphereHot Thick WaterTerraforming︎ HR 6421 5 a - Rocky body Landable
Body distance2,857 LsEarth masses0.0356Radius2,274 kmGravity0.28 gSurface temperature286 K (13°C/56°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Ruthenium: 1.2%︎ Selenium: 3.1%︎ Cadmium: 1.6%︎ Niobium: 1.4%︎ Germanium: 5.7%︎ Zinc: 5.4%︎ Carbon: 16.4%︎ Iron: 20.0%︎ Nickel: 15.2%︎ Phosphorus: 10.5%︎ Sulphur: 19.5%︎ HR 6421 5 d - Icy body Landable
Body distance2,883 LsRing/belt typeRocky (Pristine)Earth masses0.3590Radius6,087 kmGravity0.39 gSurface temperature199 K (-74°C/-101°F)Surface pressure0.08 atmVolcanismMinor Nitrogen magmaAtmosphereThin ArgonTerraforming︎ Ruthenium: 0.7%︎ Cadmium: 0.9%︎ Tin: 0.7%︎ Germanium: 3.1%︎ Vanadium: 2.9%︎ Zinc: 3.2%︎ Carbon: 24.0%︎ Iron: 11.7%︎ Nickel: 8.9%︎ Phosphorus: 15.4%︎ Sulphur: 28.5%︎ HR 6421 6 - Gas giant with water-based life
Body distance4,260 LsRing/belt typeMetal rich (Pristine)Earth masses607.8930Radius74,282 kmGravity4.48 gSurface temperature232 K (-41°C/-42°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ HR 6421 6 d - Rocky body Landable
Body distance4,255 LsEarth masses0.0031Radius1,023 kmGravity0.12 gSurface temperature153 K (-121°C/-185°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Yttrium: 1.2%︎ Niobium: 1.4%︎ Tungsten: 1.1%︎ Germanium: 5.6%︎ Vanadium: 4.9%︎ Zinc: 5.4%︎ Carbon: 16.1%︎ Iron: 19.8%︎ Nickel: 15.0%︎ Phosphorus: 10.3%︎ Sulphur: 19.2%︎ HR 6421 6 e - Rocky body Landable
Body distance4,257 LsEarth masses0.0093Radius1,469 kmGravity0.18 gSurface temperature151 K (-122°C/-188°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Ruthenium: 1.2%︎ Cadmium: 1.5%︎ Niobium: 1.3%︎ Germanium: 5.6%︎ Manganese: 8.1%︎ Zirconium: 2.3%︎ Carbon: 16.1%︎ Iron: 19.6%︎ Nickel: 14.8%︎ Phosphorus: 10.3%︎ Sulphur: 19.1%︎ HR 6421 6 c - Rocky body Landable
Body distance4,259 LsEarth masses0.0013Radius770 kmGravity0.09 gSurface temperature153 K (-120°C/-184°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Tellurium: 1.4%︎ Cadmium: 1.4%︎ Molybdenum: 1.2%︎ Chromium: 8.3%︎ Germanium: 5.3%︎ Manganese: 7.6%︎ Carbon: 15.1%︎ Iron: 18.4%︎ Nickel: 13.9%︎ Phosphorus: 9.6%︎ Sulphur: 17.9%︎ HR 6421 6 a - Rocky body Landable
Body distance4,260 LsEarth masses0.0012Radius746 kmGravity0.09 gSurface temperature173 K (-100°C/-148°F)Surface pressure0.00 atmVolcanismMajor Silicate vapour geysersAtmosphereTerraforming︎ Ruthenium: 1.2%︎ Mercury: 0.8%︎ Molybdenum: 1.2%︎ Chromium: 8.4%︎ Manganese: 7.7%︎ Vanadium: 4.6%︎ Carbon: 15.3%︎ Iron: 18.7%︎ Nickel: 14.1%︎ Phosphorus: 9.8%︎ Sulphur: 18.2%︎ HR 6421 6 b - Rocky body Landable
Body distance4,263 LsEarth masses0.0025Radius954 kmGravity0.11 gSurface temperature156 K (-117°C/-179°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Antimony: 1.2%︎ Tin: 1.2%︎ Tungsten: 1.1%︎ Chromium: 8.8%︎ Germanium: 5.6%︎ Zirconium: 2.3%︎ Carbon: 16.1%︎ Iron: 19.6%︎ Nickel: 14.8%︎ Phosphorus: 10.3%︎ Sulphur: 19.1%︎ HR 6421 6 f - Icy body Landable
Body distance4,300 LsEarth masses0.0175Radius2,112 kmGravity0.16 gSurface temperature132 K (-141°C/-223°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Ruthenium: 1.0%︎ Selenium: 3.7%︎ Cadmium: 1.2%︎ Niobium: 1.1%︎ Manganese: 6.4%︎ Vanadium: 3.8%︎ Carbon: 19.7%︎ Iron: 15.4%︎ Nickel: 11.7%︎ Phosphorus: 12.6%︎ Sulphur: 23.5%