Star system
HR 8799
Economy
Extraction / Refinery
Government
Feudal
Allegiance
Independent
Star type
Class F star Scoopable
Coordinates
-104.31 / -74.84 / -6.47
Permit required
No
︎ HR 8799 - Class F star
Body distance-Solar masses1.6055Solar radius1.3162︎ HR 8799 1 - Metal-rich body
Body distance19 LsEarth masses1.1387Radius5,034 kmGravity1.83 gSurface temperature4,107 K (3,833°C/6,932°F)Surface pressure61,922.13 atmVolcanismMajor Metallic magmaAtmosphereHot Thick Silicate vapourTerraforming︎ HR 8799 2 - Class III gas giant
Body distance2,290 LsRing/belt typeMetallic (Major)
Rocky (Major)Earth masses736.0030Radius76,871 kmGravity5.06 gSurface temperature282 K (9°C/48°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ HR 8799 2 a - Rocky body Landable
Body distance2,289 LsEarth masses0.0119Radius1,591 kmGravity0.19 gSurface temperature200 K (-73°C/-100°F)Surface pressure0.00 atmVolcanismMinor Silicate vapour geysersAtmosphereTerraforming︎ Polonium: 0.5%︎ Cadmium: 1.4%︎ Tin: 1.1%︎ Chromium: 8.3%︎ Germanium: 5.4%︎ Manganese: 7.7%︎ Carbon: 15.2%︎ Iron: 18.5%︎ Nickel: 14.0%︎ Phosphorus: 9.7%︎ Sulphur: 18.1%︎ HR 8799 2 b - Rocky body Landable
Body distance2,293 LsEarth masses0.0156Radius1,738 kmGravity0.21 gSurface temperature189 K (-84°C/-120°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Technetium: 0.7%︎ Molybdenum: 1.3%︎ Tin: 1.2%︎ Manganese: 8.0%︎ Vanadium: 4.8%︎ Zinc: 5.3%︎ Carbon: 15.9%︎ Iron: 19.4%︎ Nickel: 14.6%︎ Phosphorus: 10.2%︎ Sulphur: 18.9%︎ HR 8799 3 - High metal content world
Body distance2,343 LsRing/belt typeRocky (Major)Earth masses1.0723Radius6,212 kmGravity1.13 gSurface temperature493 K (220°C/429°F)Surface pressure19.17 atmVolcanismMajor Rocky magmaAtmosphereThick AmmoniaTerraforming︎ HR 8799 4 - Class II gas giant
Body distance3,141 LsRing/belt typeMetal rich (Major)
Rocky (Major)Earth masses94.4411Radius57,530 kmGravity1.16 gSurface temperature152 K (-121°C/-187°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ HR 8799 4 d - Rocky body Landable
Body distance3,135 LsEarth masses0.0030Radius1,006 kmGravity0.12 gSurface temperature177 K (-96°C/-141°F)Surface pressure0.03 atmVolcanismAtmosphereThin Carbon dioxideTerraforming︎ Tellurium: 1.5%︎ Mercury: 0.9%︎ Niobium: 1.4%︎ Vanadium: 5.0%︎ Zinc: 5.5%︎ Zirconium: 2.4%︎ Carbon: 16.7%︎ Iron: 20.4%︎ Nickel: 15.4%︎ Phosphorus: 10.7%︎ Sulphur: 19.9%︎ HR 8799 4 e - Rocky body Landable
Body distance3,137 LsEarth masses0.0022Radius913 kmGravity0.11 gSurface temperature175 K (-98°C/-145°F)Surface pressure0.02 atmVolcanismAtmosphereThin Carbon dioxideTerraforming︎ Ruthenium: 1.2%︎ Selenium: 3.0%︎ Cadmium: 1.5%︎ Niobium: 1.3%︎ Chromium: 8.8%︎ Vanadium: 4.8%︎ Carbon: 16.0%︎ Iron: 19.5%︎ Nickel: 14.7%︎ Phosphorus: 10.2%︎ Sulphur: 19.0%︎ HR 8799 4 b - Rocky body
Body distance3,138 LsEarth masses0.0030Radius1,009 kmGravity0.12 gSurface temperature280 K (7°C/45°F)Surface pressure2.69 atmVolcanismMajor Rocky magmaAtmosphereSulphur dioxideTerraforming︎ HR 8799 4 c - Rocky body
Body distance3,140 LsEarth masses0.0011Radius736 kmGravity0.09 gSurface temperature257 K (-17°C/2°F)Surface pressure1.41 atmVolcanismMetallic magmaAtmosphereCarbon dioxideTerraforming︎ HR 8799 4 a - Rocky body
Body distance3,142 LsEarth masses0.0007Radius622 kmGravity0.07 gSurface temperature248 K (-25°C/-13°F)Surface pressure0.99 atmVolcanismAtmosphereCarbon dioxideTerraforming︎ HR 8799 5 - Class I gas giant
Body distance7,248 LsEarth masses316.9990Radius71,231 kmGravity2.54 gSurface temperature134 K (-139°C/-218°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ HR 8799 6 - Class I gas giant
Body distance13,012 LsEarth masses316.9990Radius71,231 kmGravity2.54 gSurface temperature109 K (-164°C/-263°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ HR 8799 7 - Class I gas giant
Body distance21,200 LsEarth masses316.9990Radius71,231 kmGravity2.54 gSurface temperature95 K (-178°C/-289°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ HR 8799 8 - Class I gas giant
Body distance33,648 LsEarth masses316.9990Radius71,231 kmGravity2.54 gSurface temperature84 K (-190°C/-309°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming