Star system
HR 4720
Economy
Industrial / Refinery
Government
Patronage
Allegiance
Empire
Star type
Class G star Scoopable
Coordinates
135.91 / -9.06 / 80.25
Permit required
No
︎ HR 4720 - Class G star
Body distance-Solar masses1.0039Solar radius1.0588︎ HR 4720 1 - Class IV gas giant
Body distance732 LsRing/belt typeMetallic (Pristine)
Rocky (Pristine)Earth masses2,716.3000Radius68,765 kmGravity23.35 gSurface temperature895 K (622°C/1,152°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ HR 4720 1 b - Rocky body Landable
Body distance736 LsEarth masses0.0422Radius2,404 kmGravity0.30 gSurface temperature359 K (86°C/187°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Antimony: 1.2%︎ Selenium: 2.9%︎ Cadmium: 1.5%︎ Tin: 1.1%︎ Chromium: 8.5%︎ Manganese: 7.8%︎ Carbon: 15.5%︎ Iron: 18.9%︎ Nickel: 14.3%︎ Phosphorus: 9.9%︎ Sulphur: 18.5%︎ HR 4720 1 a - Rocky body Landable
Body distance739 LsEarth masses0.0241Radius2,005 kmGravity0.24 gSurface temperature375 K (101°C/215°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Polonium: 0.5%︎ Tin: 1.2%︎ Tungsten: 1.1%︎ Germanium: 5.7%︎ Manganese: 8.2%︎ Zirconium: 2.3%︎ Carbon: 16.3%︎ Iron: 19.8%︎ Nickel: 15.0%︎ Phosphorus: 10.4%︎ Sulphur: 19.4%︎ HR 4720 1 c - Rocky body Landable
Body distance755 LsEarth masses0.0059Radius1,250 kmGravity0.15 gSurface temperature344 K (71°C/160°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Ruthenium: 1.2%︎ Molybdenum: 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%︎ HR 4720 3 - Gas giant with water-based life
Body distance1,981 LsRing/belt typeMetallic (Pristine)
Metal rich (Pristine)Earth masses42.0883Radius49,669 kmGravity0.69 gSurface temperature195 K (-78°C/-108°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ HR 4720 3 b - Rocky body Landable
Body distance2,021 LsEarth masses0.0008Radius654 kmGravity0.08 gSurface temperature197 K (-76°C/-105°F)Surface pressure0.00 atmVolcanismMinor Rocky magmaAtmosphereTerraforming︎ Yttrium: 1.2%︎ Mercury: 0.9%︎ Tungsten: 1.1%︎ Chromium: 8.9%︎ Zinc: 5.3%︎ Zirconium: 2.3%︎ Carbon: 16.2%︎ Iron: 19.7%︎ Nickel: 14.9%︎ Phosphorus: 10.4%︎ Sulphur: 19.3%︎ HR 4720 3 a - Rocky body Landable
Body distance2,045 LsEarth masses0.0020Radius884 kmGravity0.10 gSurface temperature197 K (-76°C/-105°F)Surface pressure0.00 atmVolcanismMinor Metallic magmaAtmosphereTerraforming︎ Ruthenium: 1.2%︎ Cadmium: 1.5%︎ Molybdenum: 1.3%︎ Arsenic: 2.5%︎ Manganese: 8.1%︎ Vanadium: 4.8%︎ Carbon: 16.2%︎ Iron: 19.7%︎ Nickel: 14.9%︎ Phosphorus: 10.4%︎ Sulphur: 19.2%︎ HR 4720 3 c - Rocky body Landable
Body distance2,046 LsEarth masses0.0016Radius830 kmGravity0.10 gSurface temperature197 K (-77°C/-106°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Yttrium: 1.2%︎ Cadmium: 1.5%︎ Tin: 1.2%︎ Arsenic: 2.5%︎ Manganese: 8.2%︎ Vanadium: 4.9%︎ Carbon: 16.2%︎ Iron: 19.8%︎ Nickel: 15.0%︎ Phosphorus: 10.4%︎ Sulphur: 19.2%︎ HR 4720 4 - Class II gas giant
Body distance2,873 LsRing/belt typeRocky (Pristine)Earth masses73.6146Radius51,546 kmGravity1.13 gSurface temperature160 K (-113°C/-172°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ HR 4720 2 - Class III gas giant
Body distance1,990 LsRing/belt typeRocky (Pristine)Earth masses1,097.0500Radius75,079 kmGravity7.91 gSurface temperature374 K (101°C/214°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ HR 4720 2 d - Rocky body Landable
Body distance1,988 LsEarth masses0.0082Radius1,407 kmGravity0.17 gSurface temperature215 K (-58°C/-73°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Tellurium: 1.4%︎ Tin: 1.2%︎ Tungsten: 1.1%︎ 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 4720 2 a - Rocky body
Body distance1,990 LsEarth masses0.0020Radius892 kmGravity0.11 gSurface temperature231 K (-42°C/-44°F)Surface pressure0.00 atmVolcanismMajor Rocky magmaAtmosphereSulphur dioxideTerraforming︎ HR 4720 2 b - Rocky body Landable
Body distance1,992 LsEarth masses0.0024Radius937 kmGravity0.11 gSurface temperature223 K (-50°C/-59°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Tellurium: 1.5%︎ Molybdenum: 1.3%︎ Niobium: 1.4%︎ Arsenic: 2.6%︎ Germanium: 5.8%︎ Vanadium: 5.0%︎ Carbon: 16.6%︎ Iron: 20.2%︎ Nickel: 15.3%︎ Phosphorus: 10.6%︎ Sulphur: 19.7%︎ HR 4720 2 c - Rocky body Landable
Body distance1,995 LsEarth masses0.0033Radius1,043 kmGravity0.12 gSurface temperature218 K (-55°C/-67°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Polonium: 0.5%︎ Cadmium: 1.5%︎ Niobium: 1.3%︎ Arsenic: 2.5%︎ Chromium: 8.8%︎ Zinc: 5.3%︎ Carbon: 16.1%︎ Iron: 19.6%︎ Nickel: 14.8%︎ Phosphorus: 10.3%︎ Sulphur: 19.2%︎ HR 4720 2 e - Rocky body Landable
Body distance1,997 LsEarth masses0.0088Radius1,440 kmGravity0.17 gSurface temperature210 K (-63°C/-82°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Technetium: 0.7%︎ Cadmium: 1.5%︎ Niobium: 1.3%︎ Chromium: 8.6%︎ Germanium: 5.5%︎ Vanadium: 4.7%︎ Carbon: 15.7%︎ Iron: 19.0%︎ Nickel: 14.4%︎ Phosphorus: 10.0%︎ Sulphur: 18.6%︎ HR 4720 5 - Gas giant with ammonia-based life
Body distance3,811 LsEarth masses64.0943Radius46,754 kmGravity1.19 gSurface temperature141 K (-133°C/-207°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ HR 4720 5 d - Rocky body Landable
Body distance3,771 LsEarth masses0.0019Radius868 kmGravity0.10 gSurface temperature164 K (-109°C/-164°F)Surface pressure0.02 atmVolcanismAtmosphereThin Carbon dioxideTerraforming︎ Selenium: 3.0%︎ Technetium: 0.7%︎ Cadmium: 1.5%︎ Tin: 1.2%︎ Manganese: 8.1%︎ Vanadium: 4.8%︎ Carbon: 16.2%︎ Iron: 19.7%︎ Nickel: 14.9%︎ Phosphorus: 10.4%︎ Sulphur: 19.3%︎ HR 4720 5 g - Rocky body Landable
Body distance3,773 LsEarth masses0.0022Radius907 kmGravity0.11 gSurface temperature165 K (-109°C/-163°F)Surface pressure0.02 atmVolcanismAtmosphereThin Carbon dioxideTerraforming︎ Ruthenium: 1.2%︎ Cadmium: 1.5%︎ Mercury: 0.9%︎ Arsenic: 2.6%︎ Manganese: 8.2%︎ Vanadium: 4.9%︎ Carbon: 16.3%︎ Iron: 19.8%︎ Nickel: 15.0%︎ Phosphorus: 10.4%︎ Sulphur: 19.3%︎ HR 4720 5 h - Rocky body Landable
Body distance3,773 LsEarth masses0.0014Radius789 kmGravity0.09 gSurface temperature162 K (-111°C/-168°F)Surface pressure0.02 atmVolcanismAtmosphereThin Carbon dioxideTerraforming︎ Tellurium: 1.4%︎ Mercury: 0.8%︎ Tungsten: 1.0%︎ Chromium: 8.4%︎ Manganese: 7.7%︎ Vanadium: 4.6%︎ Carbon: 15.3%︎ Iron: 18.6%︎ Nickel: 14.1%︎ Phosphorus: 9.8%︎ Sulphur: 18.2%︎ HR 4720 5 c - Rocky body Landable
Body distance3,774 LsEarth masses0.0025Radius953 kmGravity0.11 gSurface temperature166 K (-107°C/-161°F)Surface pressure0.02 atmVolcanismAtmosphereThin Carbon dioxideTerraforming︎ Antimony: 1.2%︎ Molybdenum: 1.3%︎ Tin: 1.2%︎ Arsenic: 2.5%︎ Manganese: 8.2%︎ Vanadium: 4.9%︎ Carbon: 16.2%︎ Iron: 19.9%︎ Nickel: 15.0%︎ Phosphorus: 10.4%︎ Sulphur: 19.2%︎ HR 4720 5 b - Rocky body Landable
Body distance3,775 LsEarth masses0.0027Radius974 kmGravity0.11 gSurface temperature167 K (-106°C/-159°F)Surface pressure0.02 atmVolcanismAtmosphereThin Carbon dioxideTerraforming︎ Technetium: 0.7%︎ Molybdenum: 1.2%︎ Tin: 1.1%︎ Chromium: 8.6%︎ Germanium: 5.5%︎ Vanadium: 4.7%︎ Carbon: 15.7%︎ Iron: 19.1%︎ Nickel: 14.5%︎ Phosphorus: 10.1%︎ Sulphur: 18.7%︎ HR 4720 5 e - Rocky body Landable
Body distance3,776 LsEarth masses0.0019Radius875 kmGravity0.10 gSurface temperature164 K (-109°C/-164°F)Surface pressure0.02 atmVolcanismAtmosphereThin Carbon dioxideTerraforming︎ Selenium: 2.9%︎ Technetium: 0.7%︎ Mercury: 0.8%︎ Tungsten: 1.0%︎ Chromium: 8.6%︎ Manganese: 7.9%︎ Carbon: 15.7%︎ Iron: 19.1%︎ Nickel: 14.5%︎ Phosphorus: 10.1%︎ Sulphur: 18.7%︎ HR 4720 5 f - Rocky body Landable
Body distance3,779 LsEarth masses0.0021Radius896 kmGravity0.11 gSurface temperature164 K (-109°C/-164°F)Surface pressure0.02 atmVolcanismAtmosphereThin Carbon dioxideTerraforming︎ Tellurium: 1.4%︎ Mercury: 0.8%︎ Molybdenum: 1.2%︎ Chromium: 8.3%︎ Manganese: 7.6%︎ Zinc: 5.0%︎ Carbon: 15.2%︎ Iron: 18.5%︎ Nickel: 14.0%︎ Phosphorus: 9.7%︎ Sulphur: 18.1%︎ HR 4720 5 a - Rocky body
Body distance3,779 LsEarth masses0.0034Radius1,055 kmGravity0.12 gSurface temperature219 K (-54°C/-65°F)Surface pressure0.56 atmVolcanismAtmosphereCarbon dioxideTerraforming︎ HR 4720 5 c a - Rocky body
Body distance3,811 LsEarth masses0.0002Radius418 kmGravity0.05 gSurface temperature213 K (-61°C/-77°F)Surface pressure0.43 atmVolcanismMetallic magmaAtmosphereCarbon dioxideTerraforming