Star system
HIP 88728
Economy
Industrial / Extraction
Government
Dictatorship
Allegiance
Independent
Star type
Class F star Scoopable
Coordinates
-75.72 / 30.5 / 103.53
Permit required
No
Powerplay
Exploited
Powers
︎ HIP 88728 A - Class F star
Body distance-Solar masses1.2695Solar radius1.1352︎ HIP 88728 A 1 - Gas giant with water-based life
Body distance1,739 LsEarth masses297.3870Radius71,599 kmGravity2.36 gSurface temperature197 K (-76°C/-105°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ HIP 88728 A 1 c - Rocky body Landable
Body distance1,732 LsEarth masses0.0067Radius1,317 kmGravity0.16 gSurface temperature169 K (-104°C/-156°F)Surface pressure0.00 atmVolcanismAtmosphereThin AmmoniaTerraforming︎ Yttrium: 1.2%︎ Cadmium: 1.5%︎ Tin: 1.2%︎ Germanium: 5.7%︎ Vanadium: 4.9%︎ Zinc: 5.4%︎ Carbon: 16.0%︎ Iron: 19.8%︎ Nickel: 15.0%︎ Phosphorus: 10.3%︎ Sulphur: 19.1%︎ HIP 88728 A 1 a - Rocky body Landable
Body distance1,734 LsEarth masses0.0102Radius1,515 kmGravity0.18 gSurface temperature171 K (-102°C/-152°F)Surface pressure0.00 atmVolcanismAtmosphereThin AmmoniaTerraforming︎ Tellurium: 1.4%︎ Molybdenum: 1.2%︎ Tin: 1.1%︎ Chromium: 8.6%︎ Manganese: 7.9%︎ Zirconium: 2.2%︎ Carbon: 15.5%︎ Iron: 19.1%︎ Nickel: 14.5%︎ Phosphorus: 9.9%︎ Sulphur: 18.5%︎ HIP 88728 A 1 b - Rocky body Landable
Body distance1,735 LsEarth masses0.0041Radius1,121 kmGravity0.13 gSurface temperature169 K (-104°C/-155°F)Surface pressure0.00 atmVolcanismAtmosphereThin AmmoniaTerraforming︎ Ruthenium: 1.2%︎ Mercury: 0.8%︎ Molybdenum: 1.3%︎ Germanium: 5.6%︎ Manganese: 8.0%︎ Vanadium: 4.7%︎ Carbon: 15.7%︎ Iron: 19.3%︎ Nickel: 14.6%︎ Phosphorus: 10.1%︎ Sulphur: 18.7%︎ HIP 88728 A 1 c a - Rocky body Landable
Body distance1,753 LsEarth masses0.0002Radius414 kmGravity0.05 gSurface temperature168 K (-106°C/-158°F)Surface pressure0.00 atmVolcanismMinor Metallic magmaAtmosphereTerraforming︎ Antimony: 1.2%︎ Cadmium: 1.4%︎ Tin: 0.9%︎ Chromium: 7.9%︎ Germanium: 5.9%︎ Zinc: 4.8%︎ Carbon: 16.6%︎ Iron: 17.6%︎ Nickel: 13.3%︎ Phosphorus: 10.6%︎ Sulphur: 19.7%︎ HIP 88728 A 1 d - Rocky body Landable
Body distance1,758 LsEarth masses0.0152Radius1,725 kmGravity0.21 gSurface temperature168 K (-105°C/-157°F)Surface pressure0.00 atmVolcanismAtmosphereThin AmmoniaTerraforming︎ Yttrium: 1.2%︎ Molybdenum: 1.3%︎ Tungsten: 1.1%︎ Arsenic: 2.6%︎ Manganese: 8.2%︎ Vanadium: 4.9%︎ Carbon: 16.2%︎ Iron: 19.9%︎ Nickel: 15.1%︎ Phosphorus: 10.4%︎ Sulphur: 19.2%︎ HIP 88728 A 2 - Class I gas giant
Body distance2,476 LsRing/belt typeMetal rich (Pristine)
Rocky (Pristine)Earth masses18.9937Radius31,667 kmGravity0.77 gSurface temperature136 K (-137°C/-215°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ HIP 88728 A 2 a - Rocky body Landable
Body distance2,477 LsEarth masses0.0002Radius404 kmGravity0.05 gSurface temperature183 K (-90°C/-130°F)Surface pressure0.09 atmVolcanismAtmosphereThin Carbon dioxideTerraforming︎ Ruthenium: 1.1%︎ Molybdenum: 1.2%︎ Tungsten: 1.0%︎ Chromium: 8.3%︎ Germanium: 5.3%︎ Manganese: 7.7%︎ Carbon: 15.1%︎ Iron: 18.6%︎ Nickel: 14.0%︎ Phosphorus: 9.7%︎ Sulphur: 17.9%︎ HIP 88728 A 2 b - Rocky body Landable
Body distance2,478 LsEarth masses0.0004Radius502 kmGravity0.06 gSurface temperature154 K (-119°C/-183°F)Surface pressure0.01 atmVolcanismAtmosphereThin Carbon dioxideTerraforming︎ Tellurium: 1.4%︎ Mercury: 0.8%︎ Niobium: 1.3%︎ Chromium: 8.6%︎ Germanium: 5.5%︎ Vanadium: 4.7%︎ Carbon: 15.6%︎ Iron: 19.1%︎ Nickel: 14.5%︎ Phosphorus: 10.0%︎ Sulphur: 18.5%︎ HIP 88728 A 3 - Class I gas giant
Body distance2,968 LsRing/belt typeIcy (Pristine)
Metal rich (Pristine)Earth masses205.7920Radius66,151 kmGravity1.91 gSurface temperature147 K (-126°C/-195°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ HIP 88728 A 3 a - Icy body Landable
Body distance2,987 LsEarth masses0.0084Radius1,769 kmGravity0.11 gSurface temperature119 K (-154°C/-246°F)Surface pressure0.00 atmVolcanismMajor Water geysersAtmosphereTerraforming︎ Selenium: 4.2%︎ Tellurium: 1.0%︎ Mercury: 0.6%︎ Tungsten: 0.7%︎ Germanium: 3.7%︎ Zinc: 3.5%︎ Carbon: 22.5%︎ Iron: 12.9%︎ Nickel: 9.7%︎ Phosphorus: 14.4%︎ Sulphur: 26.8%︎ HIP 88728 A 4 - Gas giant with ammonia-based life
Body distance3,053 LsRing/belt typeIcy (Pristine)
Rocky (Pristine)Earth masses27.8238Radius38,618 kmGravity0.76 gSurface temperature126 K (-147°C/-232°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ HIP 88728 A 4 a - Icy body Landable
Body distance3,053 LsEarth masses0.0099Radius1,873 kmGravity0.11 gSurface temperature113 K (-160°C/-256°F)Surface pressure0.00 atmVolcanismMajor Water geysersAtmosphereTerraforming︎ Selenium: 4.2%︎ Tellurium: 0.9%︎ Cadmium: 1.0%︎ Niobium: 0.9%︎ Germanium: 3.6%︎ Zinc: 3.4%︎ Carbon: 22.7%︎ Iron: 12.5%︎ Nickel: 9.4%︎ Phosphorus: 14.5%︎ Sulphur: 26.9%︎ HIP 88728 A 5 - Icy body
Body distance4,394 LsRing/belt typeIcy (Pristine)Earth masses34.5720Radius20,179 kmGravity3.45 gSurface temperature102 K (-171°C/-275°F)Surface pressure8.01 atmVolcanismWater geysersAtmosphereThick HeliumTerraforming︎ HIP 88728 A 5 a - Icy body Landable
Body distance4,402 LsEarth masses0.0002Radius513 kmGravity0.03 gSurface temperature93 K (-180°C/-293°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Polonium: 0.3%︎ Cadmium: 1.0%︎ Tin: 0.7%︎ Germanium: 3.5%︎ Manganese: 5.1%︎ Zinc: 3.3%︎ Carbon: 22.8%︎ Iron: 12.3%︎ Nickel: 9.3%︎ Phosphorus: 14.6%︎ Sulphur: 27.1%︎ HIP 88728 B - Class K star
Body distance357,096 LsSolar masses0.4648Solar radius0.6227︎ HIP 88728 B 2 - Class I gas giant
Body distance354,946 LsRing/belt typeIcy (Pristine)Earth masses271.0130Radius69,632 kmGravity2.27 gSurface temperature104 K (-169°C/-272°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ HIP 88728 B 1 - Class I gas giant
Body distance355,512 LsRing/belt typeIcy (Pristine)
Rocky (Pristine)Earth masses236.8870Radius69,945 kmGravity1.97 gSurface temperature111 K (-162°C/-260°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ HIP 88728 B 1 c - Icy body Landable
Body distance355,511 LsEarth masses0.0075Radius1,714 kmGravity0.10 gSurface temperature79 K (-194°C/-317°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Antimony: 0.7%︎ Mercury: 0.5%︎ Tin: 0.7%︎ Chromium: 5.4%︎ Manganese: 5.0%︎ Zinc: 3.3%︎ Carbon: 22.3%︎ Iron: 12.1%︎ Nickel: 9.1%︎ Phosphorus: 14.3%︎ Sulphur: 26.5%︎ HIP 88728 B 1 b - Icy body Landable
Body distance355,511 LsEarth masses0.0020Radius1,112 kmGravity0.07 gSurface temperature80 K (-194°C/-316°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Ruthenium: 0.8%︎ Molybdenum: 0.8%︎ Niobium: 0.8%︎ Germanium: 3.5%︎ Manganese: 5.1%︎ Zinc: 3.3%︎ Carbon: 22.7%︎ Iron: 12.3%︎ Nickel: 9.3%︎ Phosphorus: 14.5%︎ Sulphur: 27.0%︎ HIP 88728 B 1 d - Icy body Landable
Body distance355,518 LsEarth masses0.0106Radius1,921 kmGravity0.12 gSurface temperature78 K (-195°C/-319°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Selenium: 4.2%︎ Tellurium: 0.9%︎ Niobium: 0.8%︎ Tungsten: 0.7%︎ Manganese: 5.0%︎ Vanadium: 3.0%︎ Carbon: 22.6%︎ Iron: 12.2%︎ Nickel: 9.2%︎ Phosphorus: 14.5%︎ Sulphur: 26.9%︎ HIP 88728 B 1 a - Icy body Landable
Body distance358,714 LsEarth masses0.0019Radius1,088 kmGravity0.06 gSurface temperature80 K (-193°C/-315°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Ruthenium: 0.7%︎ Cadmium: 0.9%︎ Tungsten: 0.7%︎ Chromium: 5.4%︎ Germanium: 3.5%︎ Manganese: 5.0%︎ Carbon: 22.2%︎ Iron: 12.0%︎ Nickel: 9.1%︎ Phosphorus: 14.2%︎ Sulphur: 26.4%