Star system
NLTT 21440
Economy
Agriculture / Military
Government
Dictatorship
Allegiance
Independent
Star type
Class M star Scoopable
Coordinates
3.59 / 46.19 / -46.66
Permit required
No
︎ NLTT 21440 - Class M star
Body distance-Solar masses0.3750Solar radius0.5517︎ Gliese 1122 B - Class M star
Body distance993 LsSolar masses0.2695Solar radius0.4536︎ NLTT 21440 B 4 - Earth-like world
Body distance909 LsEarth masses0.3145Radius4,279 kmGravity0.70 gSurface temperature318 K (45°C/112°F)Surface pressure1.25 atmVolcanismAtmosphereSuitable for water-based lifeTerraformingTerraformed︎ NLTT 21440 B 5 - Earth-like world
Body distance910 LsEarth masses0.2937Radius4,189 kmGravity0.68 gSurface temperature317 K (44°C/111°F)Surface pressure1.25 atmVolcanismAtmosphereSuitable for water-based lifeTerraformingTerraformed︎ NLTT 21440 B 3 - High metal content world Landable
Body distance960 LsEarth masses0.1920Radius3,666 kmGravity0.58 gSurface temperature368 K (95°C/203°F)Surface pressure0.03 atmVolcanismAtmosphereThin Carbon dioxideTerraforming︎ Yttrium: 1.3%︎ Niobium: 1.5%︎ Tungsten: 1.2%︎ Chromium: 9.8%︎ Germanium: 4.6%︎ Zinc: 5.9%︎ Carbon: 13.2%︎ Iron: 21.9%︎ Nickel: 16.5%︎ Phosphorus: 8.4%︎ Sulphur: 15.6%︎ NLTT 21440 B 1 - High metal content world
Body distance993 LsEarth masses1.0136Radius6,114 kmGravity1.10 gSurface temperature877 K (604°C/1,119°F)Surface pressure4.82 atmVolcanismRocky magmaAtmosphereHot Carbon dioxideTerraforming︎ NLTT 21440 B 2 - High metal content world
Body distance1,024 LsEarth masses0.3155Radius4,268 kmGravity0.70 gSurface temperature364 K (91°C/196°F)Surface pressure0.18 atmVolcanismAtmosphereSulphur dioxideTerraforming︎ NLTT 21440 B 2 a - Rocky body Landable
Body distance983 LsEarth masses0.0199Radius1,859 kmGravity0.23 gSurface temperature356 K (83°C/181°F)Surface pressure0.00 atmVolcanismMajor Silicate vapour geysersAtmosphereTerraforming︎ Polonium: 0.5%︎ Selenium: 2.8%︎ Tin: 1.2%︎ Tungsten: 1.1%︎ Chromium: 8.9%︎ Manganese: 8.2%︎ Carbon: 15.0%︎ Iron: 19.8%︎ Nickel: 15.0%︎ Phosphorus: 9.6%︎ Sulphur: 17.9%︎ NLTT 21440 AB 1 - Class III gas giant
Body distance1,958 LsRing/belt typeIcy (Common)
Rocky (Common)Earth masses1,209.9700Radius75,951 kmGravity8.52 gSurface temperature264 K (-9°C/16°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ NLTT 21440 AB 1 a - Icy body Landable
Body distance1,931 LsEarth masses0.0115Radius1,977 kmGravity0.12 gSurface temperature82 K (-191°C/-311°F)Surface pressure0.00 atmVolcanismWater geysersAtmosphereTerraforming︎ Yttrium: 0.7%︎ Molybdenum: 0.8%︎ Tungsten: 0.7%︎ Chromium: 5.4%︎ Manganese: 5.0%︎ Zirconium: 1.4%︎ Carbon: 22.9%︎ Iron: 12.1%︎ Nickel: 9.2%︎ Phosphorus: 14.6%︎ Sulphur: 27.2%︎ NLTT 21440 AB 1 b - Icy body
Body distance1,957 LsEarth masses0.0222Radius2,449 kmGravity0.15 gSurface temperature129 K (-144°C/-228°F)Surface pressure1.08 atmVolcanismAtmosphereMethaneTerraforming︎ NLTT 21440 AB 1 c - Icy body Landable
Body distance1,965 LsEarth masses0.0500Radius3,189 kmGravity0.20 gSurface temperature62 K (-211°C/-348°F)Surface pressure0.02 atmVolcanismAtmosphereThin ArgonTerraforming︎ Technetium: 0.4%︎ Cadmium: 1.0%︎ Niobium: 0.8%︎ Chromium: 5.6%︎ Vanadium: 3.0%︎ Zirconium: 1.4%︎ Carbon: 23.3%︎ Iron: 12.4%︎ Nickel: 9.4%︎ Phosphorus: 14.9%︎ Sulphur: 27.7%︎ NLTT 21440 AB 1 d - Icy body Landable
Body distance2,059 LsRing/belt typeIcy (Common)Earth masses0.2089Radius5,099 kmGravity0.33 gSurface temperature55 K (-218°C/-360°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Antimony: 0.7%︎ Cadmium: 0.9%︎ Mercury: 0.5%︎ Arsenic: 1.4%︎ Chromium: 5.3%︎ Manganese: 4.9%︎ Carbon: 23.1%︎ Iron: 11.9%︎ Nickel: 9.0%︎ Phosphorus: 14.8%︎ Sulphur: 27.5%︎ NLTT 21440 AB 2 - Gas giant with water-based life
Body distance2,816 LsRing/belt typeIcy (Common)
Metal rich (Common)Earth masses1,056.6800Radius76,231 kmGravity7.39 gSurface temperature223 K (-50°C/-58°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ NLTT 21440 AB 2 b - Icy body Landable
Body distance2,845 LsEarth masses0.0172Radius2,253 kmGravity0.14 gSurface temperature60 K (-213°C/-351°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Ruthenium: 0.7%︎ Cadmium: 0.9%︎ Molybdenum: 0.8%︎ Germanium: 3.5%︎ Manganese: 5.0%︎ Zinc: 3.3%︎ Carbon: 22.8%︎ Iron: 12.1%︎ Nickel: 9.1%︎ Phosphorus: 14.6%︎ Sulphur: 27.1%︎ NLTT 21440 AB 2 a - Icy body
Body distance2,853 LsEarth masses0.0157Radius2,187 kmGravity0.13 gSurface temperature143 K (-130°C/-202°F)Surface pressure4.38 atmVolcanismAtmosphereMethaneTerraforming︎ NLTT 21440 AB 2 d - Icy body Landable
Body distance2,862 LsEarth masses0.1040Radius4,037 kmGravity0.26 gSurface temperature51 K (-223°C/-369°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Ruthenium: 0.7%︎ Selenium: 4.2%︎ Cadmium: 0.9%︎ Niobium: 0.8%︎ Manganese: 5.0%︎ Vanadium: 3.0%︎ Carbon: 22.7%︎ Iron: 12.0%︎ Nickel: 9.1%︎ Phosphorus: 14.5%︎ Sulphur: 27.0%︎ NLTT 21440 AB 2 e - Icy body Landable
Body distance3,037 LsEarth masses0.1112Radius4,125 kmGravity0.27 gSurface temperature48 K (-225°C/-373°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Yttrium: 0.7%︎ Cadmium: 0.9%︎ Molybdenum: 0.8%︎ Chromium: 5.4%︎ Manganese: 5.0%︎ Zirconium: 1.4%︎ Carbon: 22.8%︎ Iron: 12.1%︎ Nickel: 9.1%︎ Phosphorus: 14.6%︎ Sulphur: 27.1%︎ NLTT 21440 AB 2 c - Icy body Landable
Body distance3,075 LsEarth masses0.0211Radius2,410 kmGravity0.15 gSurface temperature58 K (-215°C/-356°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Ruthenium: 0.8%︎ Selenium: 4.3%︎ Mercury: 0.5%︎ Molybdenum: 0.8%︎ Vanadium: 3.0%︎ Zinc: 3.3%︎ Carbon: 23.2%︎ Iron: 12.3%︎ Nickel: 9.3%︎ Phosphorus: 14.9%︎ Sulphur: 27.6%︎ NLTT 21440 AB 3 - Icy body
Body distance4,060 LsRing/belt typeIcy (Common)Earth masses57.1807Radius21,618 kmGravity4.97 gSurface temperature36 K (-237°C/-395°F)Surface pressure11.41 atmVolcanismWater geysersAtmosphereThick HeliumTerraforming︎ NLTT 21440 AB 3 a - Icy body
Body distance4,037 LsRing/belt typeIcy (Common)Earth masses1.2978Radius8,950 kmGravity0.66 gSurface temperature34 K (-239°C/-398°F)Surface pressure0.26 atmVolcanismMajor Water magmaAtmosphereNeon-richTerraforming