Star system
HIP 7420
Economy
Industrial / Extraction
Government
Democracy
Allegiance
Independent
Star type
Class K star Scoopable
Coordinates
-95.5 / -46.22 / -86.5
Permit required
No
︎ HIP 7420 - Class K star
Body distance-Solar masses0.7031Solar radius0.7998︎ HIP 7420 1 - High metal content world
Body distance10 LsEarth masses12.9764Radius12,246 kmGravity3.52 gSurface temperature3,640 K (3,367°C/6,092°F)Surface pressure8,126.60 atmVolcanismMajor Silicate vapour geysersAtmosphereHot Thick Carbon dioxide-richTerraforming︎ HIP 7420 2 - Class I gas giant
Body distance711 LsRing/belt typeIcy (Major)
Rocky (Major)Earth masses14.6628Radius26,391 kmGravity0.86 gSurface temperature99 K (-174°C/-282°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ HIP 7420 2 a - Icy body Landable
Body distance712 LsEarth masses0.0002Radius514 kmGravity0.03 gSurface temperature89 K (-184°C/-300°F)Surface pressure0.00 atmVolcanismMajor Water geysersAtmosphereTerraforming︎ Yttrium: 0.7%︎ Niobium: 0.8%︎ Tin: 0.7%︎ Germanium: 3.5%︎ Manganese: 5.0%︎ Zinc: 3.3%︎ Carbon: 22.8%︎ Iron: 12.1%︎ Nickel: 9.2%︎ Phosphorus: 14.6%︎ Sulphur: 27.1%︎ HIP 7420 7 - Gas giant with water-based life
Body distance2,106 LsRing/belt typeIcy (Major)Earth masses921.9150Radius75,536 kmGravity6.57 gSurface temperature209 K (-64°C/-83°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ HIP 7420 7 b - Icy body Landable
Body distance2,106 LsEarth masses0.0443Radius3,066 kmGravity0.19 gSurface temperature88 K (-185°C/-302°F)Surface pressure0.00 atmVolcanismMajor Water geysersAtmosphereTerraforming︎ Selenium: 4.1%︎ Tellurium: 0.9%︎ Cadmium: 0.9%︎ Niobium: 0.8%︎ Chromium: 5.3%︎ Manganese: 4.9%︎ Carbon: 22.1%︎ Iron: 11.7%︎ Nickel: 8.9%︎ Phosphorus: 14.1%︎ Sulphur: 26.3%︎ HIP 7420 7 e - Icy body Landable
Body distance2,107 LsEarth masses0.0575Radius3,330 kmGravity0.21 gSurface temperature68 K (-205°C/-337°F)Surface pressure0.02 atmVolcanismAtmosphereThin ArgonTerraforming︎ Selenium: 4.2%︎ Yttrium: 0.7%︎ Cadmium: 0.9%︎ Tin: 0.7%︎ Chromium: 5.4%︎ Germanium: 3.5%︎ Carbon: 22.4%︎ Iron: 12.1%︎ Nickel: 9.1%︎ Phosphorus: 14.3%︎ Sulphur: 26.6%︎ HIP 7420 7 c - Icy body Landable
Body distance2,109 LsEarth masses0.0236Radius2,499 kmGravity0.15 gSurface temperature78 K (-195°C/-319°F)Surface pressure0.00 atmVolcanismCarbon dioxide geysersAtmosphereTerraforming︎ Ruthenium: 0.7%︎ Cadmium: 0.9%︎ Niobium: 0.8%︎ Chromium: 5.3%︎ Germanium: 3.5%︎ Manganese: 4.9%︎ Carbon: 22.3%︎ Iron: 11.8%︎ Nickel: 9.0%︎ Phosphorus: 14.3%︎ Sulphur: 26.5%︎ HIP 7420 7 a - Icy body Landable
Body distance2,120 LsEarth masses0.0481Radius3,148 kmGravity0.20 gSurface temperature88 K (-185°C/-301°F)Surface pressure0.01 atmVolcanismMajor Water geysersAtmosphereThin ArgonTerraforming︎ Technetium: 0.4%︎ Mercury: 0.5%︎ Tungsten: 0.7%︎ Manganese: 5.1%︎ Vanadium: 3.0%︎ Zinc: 3.3%︎ Carbon: 23.1%︎ Iron: 12.3%︎ Nickel: 9.3%︎ Phosphorus: 14.8%︎ Sulphur: 27.5%︎ HIP 7420 7 d - Icy body
Body distance2,124 LsEarth masses0.0228Radius2,471 kmGravity0.15 gSurface temperature197 K (-76°C/-105°F)Surface pressure20.12 atmVolcanismAtmosphereThick MethaneTerraforming︎ HIP 7420 8 - Gas giant with water-based life
Body distance3,150 LsRing/belt typeIcy (Major)Earth masses869.8890Radius76,166 kmGravity6.09 gSurface temperature188 K (-85°C/-121°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ HIP 7420 8 a - Icy body Landable
Body distance3,140 LsEarth masses0.0189Radius2,325 kmGravity0.14 gSurface temperature80 K (-193°C/-316°F)Surface pressure0.00 atmVolcanismMajor Water geysersAtmosphereTerraforming︎ Ruthenium: 0.8%︎ Niobium: 0.8%︎ Tin: 0.7%︎ Germanium: 3.6%︎ Vanadium: 3.0%︎ Zinc: 3.4%︎ Carbon: 23.3%︎ Iron: 12.4%︎ Nickel: 9.4%︎ Phosphorus: 14.9%︎ Sulphur: 27.7%︎ HIP 7420 8 b - Icy body Landable
Body distance3,140 LsEarth masses0.0159Radius2,198 kmGravity0.13 gSurface temperature80 K (-193°C/-316°F)Surface pressure0.00 atmVolcanismMajor Water geysersAtmosphereTerraforming︎ Antimony: 0.7%︎ Mercury: 0.5%︎ Tin: 0.7%︎ Chromium: 5.4%︎ Germanium: 3.5%︎ Zinc: 3.3%︎ Carbon: 22.8%︎ Iron: 12.1%︎ Nickel: 9.2%︎ Phosphorus: 14.6%︎ Sulphur: 27.1%︎ HIP 7420 9 - Icy body
Body distance3,161 LsEarth masses10.5090Radius15,017 kmGravity1.89 gSurface temperature48 K (-225°C/-373°F)Surface pressure1.86 atmVolcanismWater geysersAtmosphereHeliumTerraforming︎ HIP 7420 10 - Icy body
Body distance4,250 LsRing/belt typeIcy (Major)Earth masses9.8187Radius14,762 kmGravity1.83 gSurface temperature38 K (-236°C/-392°F)Surface pressure1.74 atmVolcanismWater geysersAtmosphereHeliumTerraforming︎ HIP 7420 3 - Icy body
Body distance714 LsRing/belt typeIcy (Major)Earth masses3.1138Radius11,066 kmGravity1.03 gSurface temperature124 K (-150°C/-237°F)Surface pressure886.76 atmVolcanismMajor Water geysersAtmosphereThick NitrogenTerraforming︎ HIP 7420 4 - Gas giant with ammonia-based life
Body distance906 LsRing/belt typeIcy (Major)
Rocky (Major)Earth masses354.3530Radius71,752 kmGravity2.80 gSurface temperature133 K (-140°C/-221°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ HIP 7420 5 - Class I gas giant
Body distance1,295 LsRing/belt typeIcy (Major)
Rocky (Major)Earth masses146.6300Radius62,811 kmGravity1.51 gSurface temperature88 K (-185°C/-302°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ HIP 7420 5 a - Icy body
Body distance1,295 LsEarth masses0.0013Radius960 kmGravity0.06 gSurface temperature188 K (-85°C/-121°F)Surface pressure15.42 atmVolcanismMajor Water geysersAtmosphereThick MethaneTerraforming︎ HIP 7420 6 - Class I gas giant
Body distance1,315 LsRing/belt typeIcy (Major)
Rocky (Major)Earth masses13.9887Radius33,901 kmGravity0.49 gSurface temperature74 K (-199°C/-326°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ HIP 7420 6 a - Icy body
Body distance1,305 LsEarth masses0.0003Radius621 kmGravity0.04 gSurface temperature160 K (-114°C/-172°F)Surface pressure6.36 atmVolcanismMajor Water geysersAtmosphereThick MethaneTerraforming