Star system
HIP 21659
Economy
Government
Allegiance
Independent
Star type
Class M star Scoopable
Coordinates
-72.66 / 5.44 / -170.66
Permit required
No
︎ HIP 21659 - Class M star
Body distance-Solar masses0.2148Solar radius0.3910︎ HIP 21659 1 - High metal content world
Body distance268 LsEarth masses0.6209Radius5,361 kmGravity0.88 gSurface temperature304 K (30°C/87°F)Surface pressure205.91 atmVolcanismAtmosphereThick Argon-richTerraforming︎ HIP 21659 1 a - Rocky ice world Landable
Body distance268 LsEarth masses0.0318Radius2,274 kmGravity0.25 gSurface temperature153 K (-120°C/-184°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Tellurium: 1.2%︎ Niobium: 1.2%︎ Tungsten: 1.0%︎ Chromium: 8.0%︎ Manganese: 7.3%︎ Zinc: 4.8%︎ Carbon: 16.0%︎ Iron: 17.7%︎ Nickel: 13.4%︎ Phosphorus: 10.2%︎ Sulphur: 19.0%︎ HIP 21659 2 - High metal content world
Body distance361 LsEarth masses0.2684Radius4,156 kmGravity0.63 gSurface temperature168 K (-105°C/-157°F)Surface pressure13.13 atmVolcanismAtmosphereThick Argon-richTerraforming︎ HIP 21659 3 - High metal content world
Body distance504 LsEarth masses0.2227Radius3,920 kmGravity0.59 gSurface temperature149 K (-124°C/-191°F)Surface pressure100.32 atmVolcanismAtmosphereThick NitrogenTerraforming︎ HIP 21659 4 - Icy body
Body distance688 LsEarth masses1.1024Radius7,988 kmGravity0.70 gSurface temperature100 K (-173°C/-279°F)Surface pressure2.96 atmVolcanismMajor Water magmaAtmosphereArgon-richTerraforming︎ HIP 21659 4 a - Icy body Landable
Body distance689 LsEarth masses0.0636Radius3,487 kmGravity0.21 gSurface temperature96 K (-177°C/-287°F)Surface pressure0.01 atmVolcanismAtmosphereThin ArgonTerraforming︎ Antimony: 0.7%︎ Mercury: 0.5%︎ Niobium: 0.8%︎ Arsenic: 1.4%︎ Chromium: 5.5%︎ Vanadium: 3.0%︎ Carbon: 23.6%︎ Iron: 12.2%︎ Nickel: 9.2%︎ Phosphorus: 15.1%︎ Sulphur: 28.0%︎ HIP 21659 5 - Icy body
Body distance962 LsEarth masses1.2740Radius8,344 kmGravity0.74 gSurface temperature397 K (124°C/255°F)Surface pressure4,199.11 atmVolcanismMinor Carbon dioxide geysersAtmosphereThick Methane-richTerraforming︎ HIP 21659 5 a - Icy body Landable
Body distance964 LsEarth masses0.0634Radius3,483 kmGravity0.21 gSurface temperature81 K (-192°C/-314°F)Surface pressure0.02 atmVolcanismAtmosphereThin ArgonTerraforming︎ Ruthenium: 0.8%︎ Mercury: 0.5%︎ Tin: 0.8%︎ Germanium: 3.2%︎ Manganese: 5.0%︎ Zirconium: 1.4%︎ Carbon: 23.6%︎ Iron: 12.2%︎ Nickel: 9.2%︎ Phosphorus: 15.1%︎ Sulphur: 28.1%︎ HIP 21659 6 - Icy body
Body distance1,361 LsEarth masses0.8464Radius7,404 kmGravity0.63 gSurface temperature131 K (-142°C/-224°F)Surface pressure1,552.51 atmVolcanismMinor Ammonia magmaAtmosphereThick NitrogenTerraforming︎ HIP 21659 7 - Icy body
Body distance1,958 LsEarth masses1.1093Radius8,032 kmGravity0.70 gSurface temperature57 K (-216°C/-357°F)Surface pressure0.22 atmVolcanismMajor Water magmaAtmosphereNeon-richTerraforming︎ HIP 21659 8 - Icy body
Body distance2,967 LsEarth masses1.5347Radius8,844 kmGravity0.80 gSurface temperature47 K (-227°C/-376°F)Surface pressure0.30 atmVolcanismCarbon dioxide geysersAtmosphereNeon-richTerraforming︎ HIP 21659 10 - Icy body
Body distance4,141 LsEarth masses1.2111Radius8,245 kmGravity0.72 gSurface temperature39 K (-234°C/-389°F)Surface pressure0.25 atmVolcanismMinor Carbon dioxide geysersAtmosphereNeon-richTerraforming︎ HIP 21659 9 - Icy body
Body distance4,147 LsEarth masses3.5066Radius11,183 kmGravity1.14 gSurface temperature40 K (-233°C/-388°F)Surface pressure0.66 atmVolcanismMajor Water geysersAtmosphereHeliumTerraforming︎ HIP 21659 11 - Icy body
Body distance7,233 LsEarth masses1.1669Radius8,154 kmGravity0.71 gSurface temperature30 K (-243°C/-406°F)Surface pressure0.24 atmVolcanismMinor Carbon dioxide geysersAtmosphereNeon-richTerraforming