Star system
Ross 440
︎ Ross 440 - Class M star
Body distance-Solar masses0.3320Solar radius0.5047︎ Ross 440 A 1 - Rocky ice world
Body distance156 LsEarth masses1.9315Radius8,903 kmGravity0.99 gSurface temperature559 K (286°C/547°F)Surface pressure5,087.75 atmVolcanismMajor Water geysersAtmosphereHot Thick Ammonia-richTerraforming︎ Ross 440 A 2 - Icy body
Body distance287 LsEarth masses6.1156Radius12,725 kmGravity1.53 gSurface temperature585 K (311°C/593°F)Surface pressure24,921.10 atmVolcanismMajor Water geysersAtmosphereHot Thick Methane-richTerraforming︎ Ross 440 A 3 - Class I gas giant
Body distance1,369 LsEarth masses130.0630Radius63,554 kmGravity1.31 gSurface temperature69 K (-204°C/-335°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Ross 440 A 3 b - Icy body Landable
Body distance1,368 LsEarth masses0.0004Radius624 kmGravity0.04 gSurface temperature53 K (-220°C/-365°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Selenium: 4.3%︎ Yttrium: 0.7%︎ Cadmium: 1.0%︎ Molybdenum: 0.8%︎ Vanadium: 3.0%︎ Zinc: 3.3%︎ Carbon: 23.0%︎ Iron: 12.3%︎ Nickel: 9.3%︎ Phosphorus: 14.8%︎ Sulphur: 27.4%︎ Ross 440 A 3 a - Icy body Landable
Body distance1,370 LsEarth masses0.0015Radius1,000 kmGravity0.06 gSurface temperature53 K (-220°C/-364°F)Surface pressure0.00 atmVolcanismWater magmaAtmosphereTerraforming︎ Tellurium: 0.9%︎ Cadmium: 1.0%︎ Molybdenum: 0.8%︎ Arsenic: 1.6%︎ Chromium: 5.6%︎ Vanadium: 3.0%︎ Carbon: 23.1%︎ Iron: 12.4%︎ Nickel: 9.3%︎ Phosphorus: 14.8%︎ Sulphur: 27.5%︎ Ross 440 A 3 c - Icy body Landable
Body distance1,373 LsEarth masses0.0003Radius609 kmGravity0.04 gSurface temperature52 K (-221°C/-365°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Selenium: 4.3%︎ Tellurium: 0.9%︎ Cadmium: 1.0%︎ Tungsten: 0.7%︎ Germanium: 3.6%︎ Zirconium: 1.5%︎ Carbon: 23.4%︎ Iron: 12.5%︎ Nickel: 9.4%︎ Phosphorus: 15.0%︎ Sulphur: 27.8%︎ Ross 440 A 3 d - Icy body Landable
Body distance1,373 LsEarth masses0.0025Radius1,190 kmGravity0.07 gSurface temperature52 K (-221°C/-366°F)Surface pressure0.00 atmVolcanismAtmosphereThin ArgonTerraforming︎ Selenium: 4.3%︎ Tellurium: 0.9%︎ Molybdenum: 0.8%︎ Niobium: 0.8%︎ Arsenic: 1.6%︎ Chromium: 5.5%︎ Carbon: 22.9%︎ Iron: 12.2%︎ Nickel: 9.2%︎ Phosphorus: 14.6%︎ Sulphur: 27.2%︎ Gl 352 B - Class M star
Body distance12,907 LsSolar masses0.2305Solar radius0.4020︎ Ross 440 B 1 - Icy body Landable
Body distance12,917 LsEarth masses0.0442Radius2,758 kmGravity0.24 gSurface temperature107 K (-167°C/-268°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Antimony: 0.8%︎ Mercury: 0.8%︎ Niobium: 1.2%︎ Germanium: 3.8%︎ Vanadium: 4.4%︎ Zinc: 4.9%︎ Carbon: 18.5%︎ Iron: 18.1%︎ Nickel: 13.7%︎ Phosphorus: 11.8%︎ Sulphur: 22.0%︎ Ross 440 B 2 - Icy body
Body distance13,007 LsEarth masses0.1585Radius4,147 kmGravity0.37 gSurface temperature98 K (-175°C/-283°F)Surface pressure4.06 atmVolcanismAtmosphereNitrogenTerraforming︎ Ross 440 B 2 a - Icy body Landable
Body distance12,939 LsEarth masses0.0027Radius1,214 kmGravity0.08 gSurface temperature94 K (-179°C/-290°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Yttrium: 0.8%︎ Cadmium: 1.1%︎ Tungsten: 0.8%︎ Vanadium: 3.4%︎ Zinc: 3.8%︎ Zirconium: 1.6%︎ Carbon: 22.5%︎ Iron: 14.0%︎ Nickel: 10.6%︎ Phosphorus: 14.4%︎ Sulphur: 26.8%︎ Ross 440 B 3 - Class II gas giant
Body distance14,073 LsEarth masses880.7290Radius72,205 kmGravity6.87 gSurface temperature205 K (-68°C/-90°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming