Star system
41 Upsilon-4 Eridani
Economy
Industrial / Extraction
Government
Cooperative
Allegiance
Independent
Star type
Class B star Scoopable
Coordinates
102.38 / -126 / -72.88
Permit required
No
Powerplay
Unoccupied
Powers
︎ 41 Upsilon-4 Eridani A - Class B star
Body distance-Solar masses4.4180Solar radius2.5884︎ 41 Upsilon-4 Eridani A 1 - High metal content world
Body distance274 LsEarth masses6.8686Radius10,477 kmGravity2.54 gSurface temperature4,930 K (4,657°C/8,414°F)Surface pressure91,043.57 atmVolcanismMajor Silicate vapour geysersAtmosphereHot Thick Carbon dioxide-richTerraforming︎ 41 Upsilon-4 Eridani A 2 - High metal content world Landable
Body distance387 LsEarth masses6.1057Radius10,137 kmGravity2.41 gSurface temperature947 K (674°C/1,246°F)Surface pressure0.00 atmVolcanismMajor Silicate vapour geysersAtmosphereTerraforming︎ Technetium: 0.8%︎ Mercury: 1.0%︎ Tungsten: 1.2%︎ Chromium: 10.2%︎ Zinc: 6.1%︎ Zirconium: 2.6%︎ Carbon: 13.5%︎ Iron: 22.6%︎ Nickel: 17.1%︎ Phosphorus: 8.7%︎ Sulphur: 16.1%︎ 41 Upsilon-4 Eridani A 3 - High metal content world Landable
Body distance387 LsEarth masses2.1524Radius7,635 kmGravity1.50 gSurface temperature947 K (674°C/1,246°F)Surface pressure0.00 atmVolcanismMetallic magmaAtmosphereTerraforming︎ Ruthenium: 1.3%︎ Niobium: 1.4%︎ Tin: 1.3%︎ Chromium: 9.4%︎ Manganese: 8.6%︎ Zinc: 5.7%︎ Carbon: 12.6%︎ Iron: 20.8%︎ Nickel: 15.8%︎ Phosphorus: 8.1%︎ Sulphur: 15.0%︎ 41 Upsilon-4 Eridani A 5 - High metal content world Landable
Body distance539 LsEarth masses3.3571Radius8,628 kmGravity1.83 gSurface temperature817 K (544°C/1,011°F)Surface pressure0.00 atmVolcanismMajor Silicate vapour geysersAtmosphereTerraforming︎ Technetium: 0.8%︎ Cadmium: 1.6%︎ Niobium: 1.4%︎ Chromium: 9.4%︎ Manganese: 8.7%︎ Zinc: 5.7%︎ Carbon: 12.5%︎ Iron: 21.0%︎ Nickel: 15.9%︎ Phosphorus: 8.0%︎ Sulphur: 14.9%︎ 41 Upsilon-4 Eridani A 4 - High metal content world
Body distance540 LsEarth masses17.8088Radius13,165 kmGravity4.18 gSurface temperature3,525 K (3,252°C/5,886°F)Surface pressure7,137.17 atmVolcanismMajor Silicate vapour geysersAtmosphereHot Thick Carbon dioxide-richTerraforming︎ 41 Upsilon-4 Eridani A 6 - Class III gas giant
Body distance955 LsEarth masses20.3966Radius20,235 kmGravity2.02 gSurface temperature627 K (354°C/669°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ 41 Upsilon-4 Eridani A 7 - High metal content world
Body distance962 LsEarth masses9.8618Radius11,452 kmGravity3.06 gSurface temperature2,536 K (2,263°C/4,105°F)Surface pressure1,409.49 atmVolcanismMajor Silicate vapour geysersAtmosphereHot Thick Carbon dioxideTerraforming︎ 41 Upsilon-4 Eridani A 8 - Class IV gas giant
Body distance1,378 LsEarth masses1,972.9100Radius70,813 kmGravity15.99 gSurface temperature932 K (659°C/1,217°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ 41 Upsilon-4 Eridani A 9 - High metal content world
Body distance1,379 LsEarth masses1.3263Radius6,616 kmGravity1.23 gSurface temperature1,559 K (1,285°C/2,346°F)Surface pressure65.14 atmVolcanismMinor Silicate vapour geysersAtmosphereHot Thick Carbon dioxideTerraforming︎ 41 Upsilon-4 Eridani A 10 - Class IV gas giant
Body distance1,725 LsEarth masses2,659.3400Radius67,403 kmGravity23.79 gSurface temperature1,068 K (794°C/1,462°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ 41 Upsilon-4 Eridani A 10 a - Rocky body Landable
Body distance1,733 LsEarth masses0.0431Radius2,390 kmGravity0.31 gSurface temperature532 K (259°C/497°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Technetium: 0.7%︎ Niobium: 1.4%︎ Tin: 1.3%︎ Chromium: 9.2%︎ Vanadium: 5.0%︎ Zirconium: 2.4%︎ Carbon: 15.5%︎ Iron: 20.5%︎ Nickel: 15.5%︎ Phosphorus: 9.9%︎ Sulphur: 18.4%︎ 41 Upsilon-4 Eridani B - T Tauri star
Body distance10,249 LsSolar masses1.8047Solar radius1.5756︎ 41 Upsilon-4 Eridani B 10 - High metal content world
Body distance10,021 LsEarth masses2.2620Radius7,722 kmGravity1.54 gSurface temperature1,887 K (1,614°C/2,937°F)Surface pressure327.59 atmVolcanismMetallic magmaAtmosphereHot Thick Carbon dioxideTerraforming︎ 41 Upsilon-4 Eridani B 9 - High metal content world Landable
Body distance10,252 LsEarth masses17.0206Radius16,447 kmGravity2.56 gSurface temperature553 K (280°C/536°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Yttrium: 1.3%︎ Cadmium: 1.7%︎ Mercury: 0.9%︎ Chromium: 9.8%︎ Germanium: 4.5%︎ Zinc: 5.9%︎ Carbon: 13.4%︎ Iron: 21.7%︎ Nickel: 16.4%︎ Phosphorus: 8.5%︎ Sulphur: 15.9%︎ 41 Upsilon-4 Eridani B 4 - High metal content world Landable
Body distance10,279 LsEarth masses4.3747Radius9,306 kmGravity2.05 gSurface temperature907 K (634°C/1,173°F)Surface pressure0.00 atmVolcanismMajor Silicate vapour geysersAtmosphereTerraforming︎ Ruthenium: 1.4%︎ Cadmium: 1.8%︎ Tin: 1.5%︎ Germanium: 4.7%︎ Manganese: 9.4%︎ Zirconium: 2.6%︎ Carbon: 13.7%︎ Iron: 22.7%︎ Nickel: 17.1%︎ Phosphorus: 8.8%︎ Sulphur: 16.3%︎ 41 Upsilon-4 Eridani B 1 - Metal-rich body Landable
Body distance10,290 LsEarth masses1.7777Radius5,719 kmGravity2.21 gSurface temperature1,272 K (999°C/1,831°F)Surface pressure0.00 atmVolcanismMajor Silicate vapour geysersAtmosphereTerraforming︎ Yttrium: 2.2%︎ Mercury: 1.6%︎ Tungsten: 2.1%︎ Chromium: 16.9%︎ Germanium: 1.8%︎ Vanadium: 9.2%︎ Iron: 37.6%︎ Nickel: 28.5%︎ 41 Upsilon-4 Eridani B 2 - Metal-rich body Landable
Body distance10,300 LsEarth masses1.2436Radius5,862 kmGravity1.47 gSurface temperature1,130 K (857°C/1,574°F)Surface pressure0.00 atmVolcanismMajor Metallic magmaAtmosphereTerraforming︎ Antimony: 1.2%︎ Molybdenum: 2.1%︎ Tin: 2.2%︎ Chromium: 14.7%︎ Manganese: 13.5%︎ Zinc: 8.9%︎ Iron: 32.7%︎ Nickel: 24.7%︎ 41 Upsilon-4 Eridani B 2 a - Metal-rich body Landable
Body distance10,337 LsEarth masses0.0055Radius937 kmGravity0.25 gSurface temperature1,130 K (857°C/1,574°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Ruthenium: 2.1%︎ Molybdenum: 2.2%︎ Tungsten: 1.9%︎ Chromium: 15.4%︎ Manganese: 14.2%︎ Zirconium: 4.0%︎ Iron: 34.3%︎ Nickel: 25.9%︎ 41 Upsilon-4 Eridani B 3 - High metal content world Landable
Body distance10,301 LsEarth masses6.4617Radius11,617 kmGravity1.95 gSurface temperature907 K (634°C/1,173°F)Surface pressure0.00 atmVolcanismMajor Silicate vapour geysersAtmosphereTerraforming︎ Ruthenium: 1.4%︎ Cadmium: 1.7%︎ Niobium: 1.5%︎ Chromium: 9.8%︎ Germanium: 4.6%︎ Vanadium: 5.4%︎ Carbon: 13.1%︎ Iron: 21.9%︎ Nickel: 16.6%︎ Phosphorus: 8.4%︎ Sulphur: 15.6%︎ 41 Upsilon-4 Eridani B 6 - High metal content world
Body distance10,483 LsEarth masses10.3050Radius11,577 kmGravity3.13 gSurface temperature3,020 K (2,747°C/4,977°F)Surface pressure2,174.30 atmVolcanismMajor Silicate vapour geysersAtmosphereHot Thick Carbon dioxideTerraforming︎ 41 Upsilon-4 Eridani B 5 - High metal content world
Body distance10,493 LsEarth masses13.7430Radius12,405 kmGravity3.63 gSurface temperature3,137 K (2,863°C/5,186°F)Surface pressure3,142.24 atmVolcanismMajor Silicate vapour geysersAtmosphereHot Thick Carbon dioxideTerraforming︎ 41 Upsilon-4 Eridani B 7 - Class III gas giant
Body distance10,503 LsEarth masses31.2930Radius19,924 kmGravity3.20 gSurface temperature598 K (325°C/617°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ 41 Upsilon-4 Eridani B 8 - High metal content world
Body distance10,597 LsEarth masses1.3807Radius7,790 kmGravity0.92 gSurface temperature1,439 K (1,166°C/2,130°F)Surface pressure21.49 atmVolcanismMinor Silicate vapour geysersAtmosphereHot Thick Carbon dioxideTerraforming︎ 41 Upsilon-4 Eridani B 11 - Helium-rich gas giant
Body distance10,933 LsEarth masses1,545.3200Radius72,648 kmGravity11.90 gSurface temperature795 K (522°C/972°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ 41 Upsilon-4 Eridani B 11 a - Rocky body Landable
Body distance10,917 LsEarth masses0.0529Radius2,554 kmGravity0.33 gSurface temperature534 K (260°C/501°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Ruthenium: 1.3%︎ Mercury: 0.9%︎ Tin: 1.3%︎ Arsenic: 2.4%︎ Germanium: 5.4%︎ Manganese: 8.5%︎ Carbon: 15.5%︎ Iron: 20.6%︎ Nickel: 15.6%︎ Phosphorus: 10.0%︎ Sulphur: 18.5%︎ 41 Upsilon-4 Eridani B 12 - Helium-rich gas giant
Body distance11,422 LsEarth masses2,093.8000Radius70,359 kmGravity17.19 gSurface temperature869 K (596°C/1,104°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ 41 Upsilon-4 Eridani B 12 a - Rocky body Landable
Body distance11,437 LsEarth masses0.0423Radius2,376 kmGravity0.30 gSurface temperature480 K (207°C/404°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Ruthenium: 1.2%︎ Niobium: 1.3%︎ Tungsten: 1.1%︎ Chromium: 8.7%︎ Manganese: 8.0%︎ Vanadium: 4.7%︎ Carbon: 14.5%︎ Iron: 19.3%︎ Nickel: 14.6%︎ Phosphorus: 9.3%︎ Sulphur: 17.3%