Star system
17 Cygni
Economy
Agriculture / Tourism
Government
Democracy
Allegiance
Independent
Star type
Class F star Scoopable
Coordinates
-64.53 / 5 / 24.59
Permit required
No
︎ 17 Cygni - Class F star
Body distance-Solar masses1.3281Solar radius1.3003︎ 17 Cygni A 1 - High metal content world Landable
Body distance164 LsEarth masses0.3689Radius4,493 kmGravity0.74 gSurface temperature631 K (358°C/676°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Yttrium: 1.3%︎ Molybdenum: 1.4%︎ Tungsten: 1.2%︎ Chromium: 9.5%︎ Manganese: 8.7%︎ Vanadium: 5.2%︎ Carbon: 12.7%︎ Iron: 21.1%︎ Nickel: 15.9%︎ Phosphorus: 8.1%︎ Sulphur: 15.0%︎ 17 Cygni A 2 - High metal content world Landable
Body distance224 LsEarth masses0.4717Radius4,847 kmGravity0.82 gSurface temperature545 K (272°C/522°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Yttrium: 1.3%︎ Cadmium: 1.7%︎ Molybdenum: 1.4%︎ Germanium: 4.6%︎ Manganese: 9.1%︎ Vanadium: 5.4%︎ Carbon: 13.3%︎ Iron: 22.1%︎ Nickel: 16.7%︎ Phosphorus: 8.5%︎ Sulphur: 15.8%︎ 17 Cygni A 3 - High metal content world Landable
Body distance299 LsEarth masses0.6927Radius5,450 kmGravity0.95 gSurface temperature477 K (204°C/399°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Technetium: 0.8%︎ Cadmium: 1.8%︎ Niobium: 1.5%︎ Manganese: 9.3%︎ Zinc: 6.1%︎ Zirconium: 2.6%︎ Carbon: 13.5%︎ Iron: 22.5%︎ Nickel: 17.0%︎ Phosphorus: 8.7%︎ Sulphur: 16.1%︎ 17 Cygni A 4 - High metal content world
Body distance400 LsEarth masses0.5613Radius5,112 kmGravity0.87 gSurface temperature656 K (383°C/721°F)Surface pressure1.52 atmVolcanismAtmosphereHot Sulphur dioxideTerraforming︎ 17 Cygni A 5 - High metal content world
Body distance550 LsEarth masses1.5775Radius6,938 kmGravity1.33 gSurface temperature1,170 K (897°C/1,646°F)Surface pressure243.65 atmVolcanismMinor Silicate vapour geysersAtmosphereHot Thick Carbon dioxideTerraforming︎ 17 Cygni A 5 a - Rocky body Landable
Body distance549 LsEarth masses0.0961Radius3,094 kmGravity0.41 gSurface temperature363 K (90°C/194°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Ruthenium: 1.2%︎ Tin: 1.2%︎ Tungsten: 1.1%︎ Chromium: 8.6%︎ Manganese: 7.9%︎ Zinc: 5.2%︎ Carbon: 14.5%︎ Iron: 19.2%︎ Nickel: 14.5%︎ Phosphorus: 9.3%︎ Sulphur: 17.3%︎ 17 Cygni A 6 - High metal content world
Body distance721 LsEarth masses1.4328Radius6,769 kmGravity1.27 gSurface temperature1,027 K (754°C/1,390°F)Surface pressure228.89 atmVolcanismMinor Silicate vapour geysersAtmosphereHot Thick Carbon dioxideTerraforming︎ 17 Cygni A 7 - Earth-like world
Body distance1,001 LsEarth masses1.4033Radius6,728 kmGravity1.26 gSurface temperature334 K (60°C/141°F)Surface pressure1.25 atmVolcanismMinor Silicate vapour geysersAtmosphereSuitable for water-based lifeTerraformingTerraformed︎ 17 Cygni B - Class K star
Body distance7,828 LsSolar masses0.7539Solar radius0.8404︎ 17 Cygni B 3 - Earth-like world
Body distance7,392 LsEarth masses0.6968Radius5,460 kmGravity0.95 gSurface temperature315 K (42°C/107°F)Surface pressure1.25 atmVolcanismAtmosphereSuitable for water-based lifeTerraformingTerraformed︎ 17 Cygni B 4 - Water world
Body distance7,409 LsEarth masses1.2396Radius6,472 kmGravity1.20 gSurface temperature402 K (129°C/264°F)Surface pressure5.52 atmVolcanismAtmosphereThick Water-richTerraformingTerraformable︎ 17 Cygni B 4 a - Rocky body Landable
Body distance7,264 LsEarth masses0.0499Radius2,506 kmGravity0.32 gSurface temperature210 K (-63°C/-81°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Antimony: 1.2%︎ Cadmium: 1.6%︎ Molybdenum: 1.4%︎ Germanium: 5.6%︎ Zinc: 5.7%︎ Zirconium: 2.4%︎ Carbon: 15.9%︎ Iron: 21.1%︎ Nickel: 15.9%︎ Phosphorus: 10.2%︎ Sulphur: 18.9%︎ 17 Cygni B 1 - High metal content world
Body distance7,706 LsEarth masses2.4224Radius7,875 kmGravity1.59 gSurface temperature1,217 K (944°C/1,731°F)Surface pressure358.41 atmVolcanismMinor Metallic magmaAtmosphereHot Thick Carbon dioxideTerraforming︎ 17 Cygni B 2 - High metal content world
Body distance8,059 LsEarth masses0.6956Radius5,457 kmGravity0.95 gSurface temperature842 K (569°C/1,056°F)Surface pressure124.11 atmVolcanismAtmosphereHot Thick Carbon dioxideTerraforming