Star system
HR 4197
Economy
Government
Allegiance
Independent
Star type
Class A star Scoopable
Coordinates
70.81 / 190 / -80.88
Permit required
No
︎ HR 4197 - Class A star
Body distance-Solar masses2.0117Solar radius1.5795︎ HR 4197 1 - High metal content world Landable
Body distance127 LsRing/belt typeMetallic (Pristine)
Rocky (Pristine)Earth masses6.4734Radius10,977 kmGravity2.18 gSurface temperature878 K (605°C/1,120°F)Surface pressure0.00 atmVolcanismMajor Silicate vapour geysersAtmosphereTerraforming︎ Selenium: 2.6%︎ Yttrium: 1.4%︎ Molybdenum: 1.6%︎ Niobium: 1.6%︎ Germanium: 5.0%︎ Vanadium: 5.8%︎ Carbon: 14.2%︎ Iron: 23.8%︎ Nickel: 18.0%︎ Phosphorus: 9.1%︎ Sulphur: 16.9%︎ HR 4197 1 a - Rocky body Landable
Body distance127 LsEarth masses0.0003Radius476 kmGravity0.06 gSurface temperature878 K (605°C/1,120°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Ruthenium: 1.2%︎ Selenium: 3.0%︎ Mercury: 0.9%︎ Tin: 1.2%︎ Manganese: 8.2%︎ Vanadium: 4.9%︎ Carbon: 16.1%︎ Iron: 19.9%︎ Nickel: 15.1%︎ Phosphorus: 10.3%︎ Sulphur: 19.2%︎ HR 4197 2 - High metal content world Landable
Body distance202 LsEarth masses4.1128Radius9,118 kmGravity2.01 gSurface temperature696 K (423°C/793°F)Surface pressure0.00 atmVolcanismMajor Silicate vapour geysersAtmosphereTerraforming︎ Tellurium: 1.2%︎ Cadmium: 1.7%︎ Molybdenum: 1.4%︎ Germanium: 4.6%︎ Manganese: 9.1%︎ Zinc: 6.0%︎ Carbon: 13.2%︎ Iron: 22.0%︎ Nickel: 16.7%︎ Phosphorus: 8.4%︎ Sulphur: 15.7%︎ HR 4197 3 - High metal content world Landable
Body distance280 LsRing/belt typeMetal rich (Pristine)
Rocky (Pristine)Earth masses8.7064Radius11,131 kmGravity2.86 gSurface temperature591 K (318°C/604°F)Surface pressure0.00 atmVolcanismMajor Silicate vapour geysersAtmosphereTerraforming︎ Ruthenium: 1.4%︎ Selenium: 2.6%︎ Cadmium: 1.8%︎ Molybdenum: 1.5%︎ Chromium: 10.3%︎ Zirconium: 2.7%︎ Carbon: 13.9%︎ Iron: 23.0%︎ Nickel: 17.4%︎ Phosphorus: 8.9%︎ Sulphur: 16.5%︎ HR 4197 3 a - Rocky body Landable
Body distance279 LsEarth masses0.0007Radius615 kmGravity0.07 gSurface temperature591 K (318°C/604°F)Surface pressure0.00 atmVolcanismMajor Silicate vapour geysersAtmosphereTerraforming︎ 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: 18.1%︎ HR 4197 3 b - Rocky body Landable
Body distance279 LsEarth masses0.0002Radius410 kmGravity0.05 gSurface temperature591 K (318°C/604°F)Surface pressure0.00 atmVolcanismMajor Silicate vapour geysersAtmosphereTerraforming︎ Tellurium: 1.4%︎ Cadmium: 1.5%︎ Molybdenum: 1.2%︎ Chromium: 8.5%︎ Vanadium: 4.7%︎ Zinc: 5.2%︎ Carbon: 15.6%︎ Iron: 19.0%︎ Nickel: 14.4%︎ Phosphorus: 10.0%︎ Sulphur: 18.6%︎ HR 4197 4 c - Rocky body Landable
Body distance952 LsEarth masses0.0037Radius1,080 kmGravity0.13 gSurface temperature369 K (96°C/205°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Antimony: 1.2%︎ Niobium: 1.3%︎ Tin: 1.2%︎ Manganese: 7.9%︎ Vanadium: 4.7%︎ Zinc: 5.2%︎ Carbon: 15.8%︎ Iron: 19.2%︎ Nickel: 14.5%︎ Phosphorus: 10.1%︎ Sulphur: 18.8%︎ HR 4197 4 e - Rocky body Landable
Body distance954 LsEarth masses0.0060Radius1,272 kmGravity0.15 gSurface temperature351 K (78°C/172°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Selenium: 3.0%︎ Yttrium: 1.2%︎ Molybdenum: 1.3%︎ Niobium: 1.3%︎ Germanium: 5.6%︎ Manganese: 8.0%︎ Carbon: 16.0%︎ Iron: 19.5%︎ Nickel: 14.7%︎ Phosphorus: 10.3%︎ Sulphur: 19.1%︎ HR 4197 4 a - Rocky body Landable
Body distance954 LsEarth masses0.0090Radius1,450 kmGravity0.17 gSurface temperature384 K (111°C/232°F)Surface pressure0.00 atmVolcanismMinor Metallic magmaAtmosphereTerraforming︎ Yttrium: 1.2%︎ Mercury: 0.8%︎ Molybdenum: 1.3%︎ Manganese: 8.0%︎ Vanadium: 4.7%︎ Zinc: 5.2%︎ Carbon: 15.9%︎ Iron: 19.3%︎ Nickel: 14.6%︎ Phosphorus: 10.2%︎ Sulphur: 18.9%︎ HR 4197 4 b - Rocky body
Body distance958 LsEarth masses0.0051Radius1,206 kmGravity0.14 gSurface temperature375 K (102°C/216°F)Surface pressure0.00 atmVolcanismMajor Rocky magmaAtmosphereSulphur dioxideTerraforming︎ HR 4197 4 d - Rocky body Landable
Body distance961 LsEarth masses0.0213Radius1,924 kmGravity0.23 gSurface temperature360 K (87°C/189°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Ruthenium: 1.2%︎ Mercury: 0.9%︎ Niobium: 1.3%︎ Chromium: 8.8%︎ Zinc: 5.3%︎ Zirconium: 2.3%︎ Carbon: 16.1%︎ Iron: 19.6%︎ Nickel: 14.8%︎ Phosphorus: 10.3%︎ Sulphur: 19.2%︎ HR 4197 5 - High metal content world
Body distance989 LsEarth masses6.7609Radius10,404 kmGravity2.54 gSurface temperature1,271 K (997°C/1,827°F)Surface pressure913.55 atmVolcanismMajor Silicate vapour geysersAtmosphereHot Thick Carbon dioxideTerraforming︎ HR 4197 6 d - Rocky body Landable
Body distance1,425 LsEarth masses0.1202Radius3,366 kmGravity0.43 gSurface temperature264 K (-9°C/16°F)Surface pressure0.03 atmVolcanismAtmosphereThin Sulphur dioxideTerraformingTerraformable︎ Antimony: 1.2%︎ Selenium: 3.0%︎ Cadmium: 1.5%︎ Niobium: 1.3%︎ Chromium: 8.7%︎ Germanium: 5.6%︎ Carbon: 15.9%︎ Iron: 19.3%︎ Nickel: 14.6%︎ Phosphorus: 10.2%︎ Sulphur: 18.9%︎ HR 4197 6 c - Rocky body
Body distance1,428 LsEarth masses0.0217Radius1,938 kmGravity0.24 gSurface temperature611 K (338°C/640°F)Surface pressure1.90 atmVolcanismAtmosphereHot WaterTerraforming︎ HR 4197 6 b - Rocky body
Body distance1,429 LsEarth masses0.0522Radius2,572 kmGravity0.32 gSurface temperature1,118 K (845°C/1,553°F)Surface pressure255.56 atmVolcanismAtmosphereHot Thick WaterTerraforming︎ HR 4197 6 b a - Rocky body
Body distance1,431 LsEarth masses0.0042Radius1,151 kmGravity0.13 gSurface temperature937 K (664°C/1,228°F)Surface pressure61.95 atmVolcanismMajor Silicate vapour geysersAtmosphereHot Thick WaterTerraforming︎ HR 4197 6 a - Rocky body
Body distance1,429 LsEarth masses0.0306Radius2,166 kmGravity0.27 gSurface temperature1,110 K (837°C/1,539°F)Surface pressure241.24 atmVolcanismMinor Metallic magmaAtmosphereHot Thick WaterTerraforming︎ HR 4197 7 f - Rocky body Landable
Body distance1,917 LsEarth masses0.0312Radius2,179 kmGravity0.27 gSurface temperature242 K (-31°C/-23°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Ruthenium: 1.2%︎ Cadmium: 1.5%︎ Tungsten: 1.0%︎ Chromium: 8.6%︎ Vanadium: 4.7%︎ Zinc: 5.2%︎ Carbon: 15.7%︎ Iron: 19.1%︎ Nickel: 14.4%︎ Phosphorus: 10.0%︎ Sulphur: 18.7%︎ HR 4197 7 g - Water world
Body distance1,923 LsRing/belt typeMetal rich (Pristine)Earth masses0.2425Radius5,400 kmGravity0.34 gSurface temperature293 K (20°C/68°F)Surface pressure0.10 atmVolcanismAtmosphereWater-richTerraforming︎ HR 4197 7 d - Rocky body Landable
Body distance1,924 LsEarth masses0.0376Radius2,315 kmGravity0.28 gSurface temperature246 K (-27°C/-17°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Antimony: 1.3%︎ Selenium: 3.2%︎ Cadmium: 1.6%︎ Tin: 1.2%︎ Arsenic: 2.7%︎ Vanadium: 5.1%︎ Carbon: 17.1%︎ Iron: 20.8%︎ Nickel: 15.7%︎ Phosphorus: 10.9%︎ Sulphur: 20.3%︎ HR 4197 7 b - Rocky body
Body distance1,931 LsEarth masses0.0116Radius1,578 kmGravity0.19 gSurface temperature914 K (640°C/1,185°F)Surface pressure40.72 atmVolcanismAtmosphereHot Thick WaterTerraforming︎ HR 4197 7 a - Rocky body
Body distance1,932 LsEarth masses0.0087Radius1,435 kmGravity0.17 gSurface temperature278 K (5°C/41°F)Surface pressure0.00 atmVolcanismMajor Rocky magmaAtmosphereSulphur dioxideTerraforming︎ HR 4197 7 c - Rocky body
Body distance1,933 LsEarth masses0.0584Radius2,669 kmGravity0.33 gSurface temperature667 K (394°C/741°F)Surface pressure3.80 atmVolcanismAtmosphereHot WaterTerraforming︎ HR 4197 7 e - Rocky body Landable
Body distance1,933 LsEarth masses0.0317Radius2,192 kmGravity0.27 gSurface temperature246 K (-27°C/-17°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Selenium: 3.0%︎ Tellurium: 1.5%︎ Molybdenum: 1.3%︎ Tungsten: 1.1%︎ Chromium: 8.8%︎ Vanadium: 4.8%︎ Carbon: 16.0%︎ Iron: 19.5%︎ Nickel: 14.8%︎ Phosphorus: 10.3%︎ Sulphur: 19.1%︎ HR 4197 9 - Class III gas giant
Body distance2,813 LsEarth masses2,156.0300Radius69,778 kmGravity18.00 gSurface temperature637 K (364°C/688°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ HR 4197 11 - High metal content world
Body distance4,582 LsEarth masses54.4553Radius16,381 kmGravity8.25 gSurface temperature216 K (-57°C/-71°F)Surface pressure59.41 atmVolcanismMajor Silicate vapour geysersAtmosphereThick NitrogenTerraforming︎ HR 4197 4 - Class Y star (brown dwarf)
Body distance955 LsSolar masses0.0156Solar radius0.0785︎ HR 4197 6 - Class Y star (brown dwarf)
Body distance1,426 LsSolar masses0.0117Solar radius0.0627︎ HR 4197 7 - Class Y star (brown dwarf)
Body distance1,934 LsSolar masses0.0156Solar radius0.0813︎ HR 4197 8 - Class Y star (brown dwarf)
Body distance2,698 LsSolar masses0.0156Solar radius0.0739︎ HR 4197 10 - Class Y star (brown dwarf)
Body distance4,541 LsSolar masses0.0273Solar radius0.1091