Star system
Eta Serpentis
Economy
Agriculture / Industrial
Government
Dictatorship
Allegiance
Independent
Star type
Class K star (orange giant) Scoopable
Coordinates
-27.59 / 5.03 / 53.56
Permit required
No
Powerplay
Exploited
Powers
︎ Eta Serpentis - Class K star (orange giant)
Body distance-Solar masses0.5117Solar radius0.7191︎ Eta Serpentis 2 - High metal content world
Body distance662 LsEarth masses1.5114Radius6,877 kmGravity1.30 gSurface temperature446 K (172°C/342°F)Surface pressure2.30 atmVolcanismRocky magmaAtmosphereSulphur dioxideTerraforming︎ Eta Serpentis 1 - High metal content world
Body distance663 LsEarth masses1.9800Radius7,436 kmGravity1.46 gSurface temperature449 K (176°C/349°F)Surface pressure2.89 atmVolcanismMajor Rocky magmaAtmosphereSulphur dioxideTerraforming︎ Eta Serpentis 3 - High metal content world
Body distance941 LsEarth masses1.9973Radius7,444 kmGravity1.47 gSurface temperature1,147 K (873°C/1,604°F)Surface pressure300.93 atmVolcanismMajor Rocky magmaAtmosphereHot Thick Carbon dioxideTerraforming︎ Eta Serpentis 3 a - Rocky body Landable
Body distance941 LsEarth masses0.0535Radius2,564 kmGravity0.33 gSurface temperature347 K (73°C/164°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Tellurium: 1.4%︎ Mercury: 0.9%︎ Niobium: 1.4%︎ Manganese: 8.5%︎ Vanadium: 5.1%︎ Zirconium: 2.4%︎ Carbon: 15.6%︎ Iron: 20.6%︎ Nickel: 15.6%︎ Phosphorus: 10.0%︎ Sulphur: 18.6%︎ Eta Serpentis 4 - High metal content world
Body distance1,325 LsEarth masses0.9118Radius5,922 kmGravity1.06 gSurface temperature889 K (616°C/1,141°F)Surface pressure151.12 atmVolcanismAtmosphereHot Thick Carbon dioxideTerraforming︎ Eta Serpentis 6 - Earth-like world
Body distance2,130 LsEarth masses1.1456Radius6,338 kmGravity1.16 gSurface temperature262 K (-11°C/12°F)Surface pressure2.30 atmVolcanismAtmosphereSuitable for water-based lifeTerraformingTerraformed︎ Eta Serpentis 5 - High metal content world
Body distance2,131 LsEarth masses1.2621Radius6,522 kmGravity1.21 gSurface temperature1,360 K (1,087°C/1,989°F)Surface pressure3,392.52 atmVolcanismAtmosphereHot Thick WaterTerraformingTerraformable︎ Eta Serpentis 7 - High metal content world
Body distance3,537 LsRing/belt typeRocky (Common)Earth masses1.7253Radius7,149 kmGravity1.37 gSurface temperature494 K (221°C/430°F)Surface pressure27.89 atmVolcanismMajor Rocky magmaAtmosphereThick Methane-richTerraforming