Star system

21 Eridani︎

Economy
Government
Allegiance
Independent
Star type
Class K star (orange giant) Scoopable
Coordinates
17.13 / -76.59 / -77
Permit required
No
Powerplay
Unoccupied
Powers

  • ︎ 21 Eridani A - Class K star (orange giant)

    Body distance
    -

    Solar masses
    0.6250
    Solar radius
    0.8059

  • ︎ 21 Eridani B - Class M star

    Body distance
    7 Ls

    Solar masses
    0.2109
    Solar radius
    0.3992

  • ︎ 21 Eridani C - Class M star

    Body distance
    104 Ls

    Solar masses
    0.3203
    Solar radius
    0.5184

  • ︎ 21 Eridani D - Class L star (brown dwarf)

    Body distance
    106 Ls

    Solar masses
    0.1641
    Solar radius
    0.3131

  • ︎ 21 Eridani ABCD 2 - Class III gas giant

    Body distance
    1,015 Ls
    Ring/belt type
    Rocky (Pristine)

    Earth masses
    784.9340
    Radius
    77,059 km
    Gravity
    5.37 g
    Surface temperature
    366 K (92°C/198°F)
    Surface pressure
    0.00 atm
    Volcanism
    Atmosphere
    Terraforming

    • ︎ 21 Eridani ABCD 2 b - Rocky body Landable

      Body distance
      1,053 Ls

      Earth masses
      0.0020
      Radius
      887 km
      Gravity
      0.10 g
      Surface temperature
      274 K (0°C/33°F)
      Surface pressure
      0.00 atm
      Volcanism
      Minor Rocky magma
      Atmosphere
      Terraforming

      ︎ Technetium: 0.7%︎ Cadmium: 1.6%︎ Tin: 1.2%︎ Germanium: 5.8%︎ Zinc: 5.5%︎ Zirconium: 2.4%︎ Carbon: 16.6%︎ Iron: 20.4%︎ Nickel: 15.4%︎ Phosphorus: 10.6%︎ Sulphur: 19.8%

    • ︎ 21 Eridani ABCD 2 a - Rocky body Landable

      Body distance
      1,078 Ls

      Earth masses
      0.0025
      Radius
      948 km
      Gravity
      0.11 g
      Surface temperature
      279 K (5°C/42°F)
      Surface pressure
      0.00 atm
      Volcanism
      Minor Metallic magma
      Atmosphere
      Terraforming

      ︎ Tellurium: 1.4%︎ Cadmium: 1.4%︎ Molybdenum: 1.2%︎ Chromium: 8.3%︎ Germanium: 5.3%︎ Manganese: 7.6%︎ Carbon: 15.0%︎ Iron: 18.4%︎ Nickel: 13.9%︎ Phosphorus: 9.6%︎ Sulphur: 17.9%

  • ︎ 21 Eridani ABCD 1 - Class III gas giant

    Body distance
    1,107 Ls
    Ring/belt type
    Metal rich (Pristine)

    Earth masses
    1,595.9100
    Radius
    75,025 km
    Gravity
    11.52 g
    Surface temperature
    536 K (263°C/505°F)
    Surface pressure
    0.00 atm
    Volcanism
    Atmosphere
    Terraforming

    • ︎ 21 Eridani ABCD 1 a - Rocky body Landable

      Body distance
      1,117 Ls

      Earth masses
      0.0037
      Radius
      1,084 km
      Gravity
      0.13 g
      Surface temperature
      315 K (41°C/107°F)
      Surface pressure
      0.00 atm
      Volcanism
      Metallic magma
      Atmosphere
      Terraforming

      ︎ Yttrium: 1.1%︎ Mercury: 0.8%︎ Tin: 1.2%︎ Chromium: 8.7%︎ Vanadium: 4.7%︎ Zinc: 5.2%︎ Carbon: 15.7%︎ Iron: 19.2%︎ Nickel: 14.6%︎ Phosphorus: 10.1%︎ Sulphur: 18.7%

  • ︎ 21 Eridani ABCD 4 - Class III gas giant

    Body distance
    1,503 Ls
    Ring/belt type
    Metallic (Pristine)
    Metal rich (Pristine)

    Earth masses
    288.7500
    Radius
    72,381 km
    Gravity
    2.24 g
    Surface temperature
    253 K (-20°C/-4°F)
    Surface pressure
    0.00 atm
    Volcanism
    Atmosphere
    Terraforming

    • ︎ 21 Eridani ABCD 4 a - Rocky body Landable

      Body distance
      1,486 Ls

      Earth masses
      0.0017
      Radius
      838 km
      Gravity
      0.10 g
      Surface temperature
      234 K (-40°C/-39°F)
      Surface pressure
      0.00 atm
      Volcanism
      Metallic magma
      Atmosphere
      Terraforming

      ︎ Tellurium: 1.4%︎ Niobium: 1.3%︎ Tungsten: 1.1%︎ Germanium: 5.5%︎ Manganese: 7.9%︎ Vanadium: 4.7%︎ Carbon: 15.7%︎ Iron: 19.2%︎ Nickel: 14.5%︎ Phosphorus: 10.0%︎ Sulphur: 18.6%

  • ︎ 21 Eridani ABCD 3 - Class IV gas giant

    Body distance
    1,519 Ls
    Ring/belt type
    Rocky (Pristine)

    Earth masses
    2,822.7300
    Radius
    68,728 km
    Gravity
    24.29 g
    Surface temperature
    813 K (540°C/1,003°F)
    Surface pressure
    0.00 atm
    Volcanism
    Atmosphere
    Terraforming

    • ︎ 21 Eridani ABCD 3 c - Rocky body Landable

      Body distance
      1,482 Ls

      Earth masses
      0.0028
      Radius
      983 km
      Gravity
      0.12 g
      Surface temperature
      300 K (27°C/81°F)
      Surface pressure
      0.00 atm
      Volcanism
      Minor Rocky magma
      Atmosphere
      Terraforming

      ︎ Technetium: 0.7%︎ Mercury: 0.9%︎ Molybdenum: 1.3%︎ Arsenic: 2.6%︎ Vanadium: 5.1%︎ Zinc: 5.6%︎ Carbon: 16.8%︎ Iron: 20.6%︎ Nickel: 15.6%︎ Phosphorus: 10.8%︎ Sulphur: 20.0%

    • ︎ 21 Eridani ABCD 3 b - Rocky body Landable

      Body distance
      1,495 Ls

      Earth masses
      0.0012
      Radius
      742 km
      Gravity
      0.09 g
      Surface temperature
      318 K (45°C/113°F)
      Surface pressure
      0.00 atm
      Volcanism
      Minor Metallic magma
      Atmosphere
      Terraforming

      ︎ Polonium: 0.5%︎ Cadmium: 1.5%︎ Mercury: 0.8%︎ Germanium: 5.6%︎ Manganese: 8.0%︎ Vanadium: 4.8%︎ Carbon: 15.8%︎ Iron: 19.4%︎ Nickel: 14.7%︎ Phosphorus: 10.1%︎ Sulphur: 18.8%

    • ︎ 21 Eridani ABCD 3 d - Rocky body Landable

      Body distance
      1,517 Ls

      Earth masses
      0.0016
      Radius
      828 km
      Gravity
      0.10 g
      Surface temperature
      289 K (16°C/61°F)
      Surface pressure
      0.00 atm
      Volcanism
      Atmosphere
      Terraforming

      ︎ Antimony: 1.1%︎ Cadmium: 1.4%︎ Niobium: 1.3%︎ Chromium: 8.3%︎ Germanium: 5.3%︎ Manganese: 7.6%︎ Carbon: 15.0%︎ Iron: 18.5%︎ Nickel: 14.0%︎ Phosphorus: 9.6%︎ Sulphur: 17.9%

    • ︎ 21 Eridani ABCD 3 e - Rocky body Landable

      Body distance
      1,518 Ls

      Earth masses
      0.0018
      Radius
      855 km
      Gravity
      0.10 g
      Surface temperature
      275 K (2°C/35°F)
      Surface pressure
      0.00 atm
      Volcanism
      Atmosphere
      Terraforming

      ︎ Technetium: 0.7%︎ Molybdenum: 1.2%︎ Tin: 1.1%︎ Chromium: 8.4%︎ Germanium: 5.3%︎ Manganese: 7.7%︎ Carbon: 15.2%︎ Iron: 18.6%︎ Nickel: 14.1%︎ Phosphorus: 9.7%︎ Sulphur: 18.0%

    • ︎ 21 Eridani ABCD 3 a - Rocky body Landable

      Body distance
      1,520 Ls

      Earth masses
      0.0010
      Radius
      694 km
      Gravity
      0.08 g
      Surface temperature
      342 K (69°C/156°F)
      Surface pressure
      0.00 atm
      Volcanism
      Major Silicate vapour geysers
      Atmosphere
      Terraforming

      ︎ Ruthenium: 1.2%︎ Mercury: 0.8%︎ Niobium: 1.3%︎ Chromium: 8.4%︎ Manganese: 7.7%︎ Vanadium: 4.6%︎ Carbon: 15.3%︎ Iron: 18.7%︎ Nickel: 14.1%︎ Phosphorus: 9.8%︎ Sulphur: 18.1%

  • ︎ 21 Eridani ABCD 5 - Class Y star (brown dwarf)

    Body distance
    2,407 Ls

    Solar masses
    0.0156
    Solar radius
    0.0725

    • ︎ 21 Eridani ABCD 5 d - Rocky body Landable

      Body distance
      2,394 Ls

      Earth masses
      0.0138
      Radius
      1,670 km
      Gravity
      0.20 g
      Surface temperature
      184 K (-89°C/-129°F)
      Surface pressure
      0.00 atm
      Volcanism
      Atmosphere
      Terraforming

      ︎ Yttrium: 1.2%︎ Cadmium: 1.6%︎ Tin: 1.2%︎ Arsenic: 2.7%︎ Germanium: 6.0%︎ Zirconium: 2.4%︎ Carbon: 17.0%︎ Iron: 20.9%︎ Nickel: 15.8%︎ Phosphorus: 10.9%︎ Sulphur: 20.2%

    • ︎ 21 Eridani ABCD 5 a - Rocky body Landable

      Body distance
      2,398 Ls

      Earth masses
      0.0135
      Radius
      1,658 km
      Gravity
      0.20 g
      Surface temperature
      205 K (-68°C/-90°F)
      Surface pressure
      0.00 atm
      Volcanism
      Minor Metallic magma
      Atmosphere
      Terraforming

      ︎ Polonium: 0.5%︎ Niobium: 1.3%︎ Tin: 1.2%︎ Manganese: 8.0%︎ Vanadium: 4.8%︎ Zinc: 5.3%︎ Carbon: 15.8%︎ Iron: 19.4%︎ Nickel: 14.7%︎ Phosphorus: 10.1%︎ Sulphur: 18.8%

    • ︎ 21 Eridani ABCD 5 b - Rocky body

      Body distance
      2,399 Ls

      Earth masses
      0.0422
      Radius
      2,400 km
      Gravity
      0.30 g
      Surface temperature
      200 K (-73°C/-99°F)
      Surface pressure
      0.00 atm
      Volcanism
      Major Rocky magma
      Atmosphere
      Thin Sulphur dioxide
      Terraforming

    • ︎ 21 Eridani ABCD 5 c - Rocky body Landable

      Body distance
      2,401 Ls

      Earth masses
      0.0235
      Radius
      1,985 km
      Gravity
      0.24 g
      Surface temperature
      192 K (-81°C/-114°F)
      Surface pressure
      0.00 atm
      Volcanism
      Atmosphere
      Terraforming

      ︎ Selenium: 3.0%︎ Yttrium: 1.2%︎ Niobium: 1.3%︎ Tungsten: 1.1%︎ Manganese: 8.1%︎ Zinc: 5.4%︎ Carbon: 16.0%︎ Iron: 19.7%︎ Nickel: 14.9%︎ Phosphorus: 10.2%︎ Sulphur: 19.0%

      • ︎ 21 Eridani ABCD 5 c a - Rocky body Landable

        Body distance
        2,401 Ls

        Earth masses
        0.0011
        Radius
        726 km
        Gravity
        0.08 g
        Surface temperature
        192 K (-81°C/-114°F)
        Surface pressure
        0.00 atm
        Volcanism
        Major Silicate vapour geysers
        Atmosphere
        Terraforming

        ︎ Tellurium: 1.5%︎ Tin: 0.9%︎ Tungsten: 1.0%︎ Chromium: 8.0%︎ Germanium: 5.9%︎ Vanadium: 4.4%︎ Carbon: 16.7%︎ Iron: 17.7%︎ Nickel: 13.4%︎ Phosphorus: 10.7%︎ Sulphur: 19.9%

    • ︎ 21 Eridani ABCD 5 e - Rocky body Landable

      Body distance
      2,404 Ls

      Earth masses
      0.0769
      Radius
      2,916 km
      Gravity
      0.37 g
      Surface temperature
      179 K (-94°C/-137°F)
      Surface pressure
      0.00 atm
      Volcanism
      Atmosphere
      Thin Sulphur dioxide
      Terraforming

      ︎ Yttrium: 1.1%︎ Cadmium: 1.5%︎ Tungsten: 1.1%︎ Germanium: 5.5%︎ Manganese: 7.9%︎ Vanadium: 4.7%︎ Carbon: 15.7%︎ Iron: 19.2%︎ Nickel: 14.5%︎ Phosphorus: 10.0%︎ Sulphur: 18.7%

  • ︎ 21 Eridani ABCD 6 - Water world

    Body distance
    2,535 Ls

    Earth masses
    27.0212
    Radius
    18,905 km
    Gravity
    3.07 g
    Surface temperature
    376 K (103°C/218°F)
    Surface pressure
    10,827.34 atm
    Volcanism
    Water geysers
    Atmosphere
    Thick Argon-rich
    Terraforming