Star system

BD+21 717︎

Economy
Government
Allegiance
Independent
Star type
Class K star Scoopable
Coordinates
-1.22 / -19.41 / -84.38
Permit required
No

  • ︎ BD+21 717 - Class K star

    Body distance
    -

    Solar masses
    0.6875
    Solar radius
    0.8098

    • ︎ BD+21 717 1 - Helium-rich gas giant

      Body distance
      838 Ls
      Ring/belt type
      Icy (Pristine)

      Earth masses
      166.7210
      Radius
      61,752 km
      Gravity
      1.78 g
      Surface temperature
      137 K (-136°C/-212°F)
      Surface pressure
      0.00 atm
      Volcanism
      Atmosphere
      Terraforming

      • ︎ BD+21 717 1 e - Icy body Landable

        Body distance
        833 Ls

        Earth masses
        0.0016
        Radius
        1,001 km
        Gravity
        0.07 g
        Surface temperature
        110 K (-163°C/-262°F)
        Surface pressure
        0.00 atm
        Volcanism
        Atmosphere
        Terraforming

        ︎ Selenium: 3.9%︎ Tellurium: 1.0%︎ Mercury: 0.6%︎ Niobium: 0.9%︎ Chromium: 5.9%︎ Manganese: 5.4%︎ Carbon: 20.9%︎ Iron: 13.2%︎ Nickel: 10.0%︎ Phosphorus: 13.4%︎ Sulphur: 24.9%

      • ︎ BD+21 717 1 b - Icy body Landable

        Body distance
        835 Ls

        Earth masses
        0.0022
        Radius
        1,107 km
        Gravity
        0.07 g
        Surface temperature
        111 K (-162°C/-260°F)
        Surface pressure
        0.00 atm
        Volcanism
        Atmosphere
        Terraforming

        ︎ Yttrium: 0.8%︎ Cadmium: 1.0%︎ Tin: 0.8%︎ Chromium: 6.0%︎ Manganese: 5.5%︎ Vanadium: 3.3%︎ Carbon: 21.0%︎ Iron: 13.3%︎ Nickel: 10.0%︎ Phosphorus: 13.4%︎ Sulphur: 24.9%

      • ︎ BD+21 717 1 c - Icy body Landable

        Body distance
        836 Ls

        Earth masses
        0.0016
        Radius
        1,006 km
        Gravity
        0.07 g
        Surface temperature
        110 K (-163°C/-261°F)
        Surface pressure
        0.00 atm
        Volcanism
        Minor Carbon dioxide geysers
        Atmosphere
        Terraforming

        ︎ Tellurium: 1.0%︎ Molybdenum: 0.9%︎ Niobium: 0.9%︎ Arsenic: 1.8%︎ Chromium: 6.2%︎ Vanadium: 3.4%︎ Carbon: 21.8%︎ Iron: 13.7%︎ Nickel: 10.4%︎ Phosphorus: 14.0%︎ Sulphur: 25.9%

      • ︎ BD+21 717 1 d - Icy body Landable

        Body distance
        836 Ls

        Earth masses
        0.0011
        Radius
        869 km
        Gravity
        0.06 g
        Surface temperature
        110 K (-163°C/-261°F)
        Surface pressure
        0.00 atm
        Volcanism
        Carbon dioxide geysers
        Atmosphere
        Terraforming

        ︎ Technetium: 0.5%︎ Niobium: 0.9%︎ Tin: 0.8%︎ Chromium: 6.0%︎ Manganese: 5.5%︎ Zinc: 3.6%︎ Carbon: 21.0%︎ Iron: 13.2%︎ Nickel: 10.0%︎ Phosphorus: 13.5%︎ Sulphur: 25.0%

      • ︎ BD+21 717 1 a - Icy body Landable

        Body distance
        840 Ls

        Earth masses
        0.0017
        Radius
        1,009 km
        Gravity
        0.07 g
        Surface temperature
        112 K (-161°C/-259°F)
        Surface pressure
        0.00 atm
        Volcanism
        Carbon dioxide geysers
        Atmosphere
        Terraforming

        ︎ Selenium: 4.1%︎ Technetium: 0.5%︎ Niobium: 1.0%︎ Tin: 0.9%︎ Germanium: 4.1%︎ Zirconium: 1.6%︎ Carbon: 22.2%︎ Iron: 14.2%︎ Nickel: 10.7%︎ Phosphorus: 14.2%︎ Sulphur: 26.4%

      • ︎ BD+21 717 1 f - Icy body Landable

        Body distance
        844 Ls

        Earth masses
        0.0016
        Radius
        1,004 km
        Gravity
        0.07 g
        Surface temperature
        110 K (-164°C/-263°F)
        Surface pressure
        0.00 atm
        Volcanism
        Atmosphere
        Terraforming

        ︎ Antimony: 0.8%︎ Selenium: 4.0%︎ Niobium: 0.9%︎ Tin: 0.8%︎ Chromium: 6.2%︎ Zirconium: 1.6%︎ Carbon: 21.8%︎ Iron: 13.7%︎ Nickel: 10.4%︎ Phosphorus: 13.9%︎ Sulphur: 25.9%

    • ︎ BD+21 717 2 - Gas giant with ammonia-based life

      Body distance
      1,043 Ls
      Ring/belt type
      Icy (Pristine)

      Earth masses
      294.2890
      Radius
      68,874 km
      Gravity
      2.52 g
      Surface temperature
      143 K (-130°C/-201°F)
      Surface pressure
      0.00 atm
      Volcanism
      Atmosphere
      Terraforming

    • ︎ BD+21 717 3 - Gas giant with water-based life

      Body distance
      1,445 Ls
      Ring/belt type
      Icy (Pristine)

      Earth masses
      708.5860
      Radius
      75,200 km
      Gravity
      5.09 g
      Surface temperature
      200 K (-73°C/-99°F)
      Surface pressure
      0.00 atm
      Volcanism
      Atmosphere
      Terraforming

      • ︎ BD+21 717 3 b - Icy body

        Body distance
        1,433 Ls
        Ring/belt type
        Icy (Pristine)

        Earth masses
        0.1423
        Radius
        4,515 km
        Gravity
        0.28 g
        Surface temperature
        93 K (-180°C/-292°F)
        Surface pressure
        4.14 atm
        Volcanism
        Atmosphere
        Argon-rich
        Terraforming

      • ︎ BD+21 717 3 a - Icy body Landable

        Body distance
        1,444 Ls

        Earth masses
        0.0261
        Radius
        2,583 km
        Gravity
        0.16 g
        Surface temperature
        106 K (-167°C/-269°F)
        Surface pressure
        0.00 atm
        Volcanism
        Major Water geysers
        Atmosphere
        Terraforming

        ︎ Ruthenium: 0.8%︎ Selenium: 4.3%︎ Molybdenum: 0.8%︎ Niobium: 0.8%︎ Manganese: 5.0%︎ Zirconium: 1.4%︎ Carbon: 23.1%︎ Iron: 12.2%︎ Nickel: 9.2%︎ Phosphorus: 14.8%︎ Sulphur: 27.5%

    • ︎ BD+21 717 4 - Gas giant with water-based life

      Body distance
      1,760 Ls
      Ring/belt type
      Icy (Pristine)
      Rocky (Pristine)

      Earth masses
      648.0100
      Radius
      73,736 km
      Gravity
      4.84 g
      Surface temperature
      180 K (-93°C/-136°F)
      Surface pressure
      0.00 atm
      Volcanism
      Atmosphere
      Terraforming

      • ︎ BD+21 717 4 f - Icy body Landable

        Body distance
        1,740 Ls

        Earth masses
        0.0045
        Radius
        1,455 km
        Gravity
        0.09 g
        Surface temperature
        80 K (-193°C/-316°F)
        Surface pressure
        0.00 atm
        Volcanism
        Atmosphere
        Terraforming

        ︎ Ruthenium: 0.7%︎ Selenium: 4.2%︎ Molybdenum: 0.8%︎ Tin: 0.7%︎ Manganese: 5.0%︎ Vanadium: 3.0%︎ Carbon: 22.8%︎ Iron: 12.0%︎ Nickel: 9.1%︎ Phosphorus: 14.6%︎ Sulphur: 27.1%

      • ︎ BD+21 717 4 e - Icy body Landable

        Body distance
        1,751 Ls

        Earth masses
        0.0043
        Radius
        1,434 km
        Gravity
        0.09 g
        Surface temperature
        82 K (-191°C/-312°F)
        Surface pressure
        0.00 atm
        Volcanism
        Atmosphere
        Terraforming

        ︎ Ruthenium: 0.7%︎ Mercury: 0.5%︎ Tungsten: 0.7%︎ Chromium: 5.4%︎ Manganese: 4.9%︎ Vanadium: 2.9%︎ Carbon: 22.6%︎ Iron: 11.9%︎ Nickel: 9.0%︎ Phosphorus: 14.5%︎ Sulphur: 26.9%

      • ︎ BD+21 717 4 d - Icy body Landable

        Body distance
        1,756 Ls

        Earth masses
        0.0092
        Radius
        1,835 km
        Gravity
        0.11 g
        Surface temperature
        85 K (-188°C/-307°F)
        Surface pressure
        0.00 atm
        Volcanism
        Atmosphere
        Terraforming

        ︎ Selenium: 4.4%︎ Technetium: 0.4%︎ Cadmium: 1.0%︎ Niobium: 0.9%︎ Vanadium: 3.1%︎ Zirconium: 1.5%︎ Carbon: 23.6%︎ Iron: 12.6%︎ Nickel: 9.5%︎ Phosphorus: 15.1%︎ Sulphur: 28.0%

      • ︎ BD+21 717 4 b - Icy body Landable

        Body distance
        1,759 Ls

        Earth masses
        0.0048
        Radius
        1,480 km
        Gravity
        0.09 g
        Surface temperature
        93 K (-180°C/-292°F)
        Surface pressure
        0.00 atm
        Volcanism
        Major Water geysers
        Atmosphere
        Terraforming

        ︎ Polonium: 0.3%︎ Selenium: 4.3%︎ Cadmium: 0.9%︎ Molybdenum: 0.8%︎ Germanium: 3.6%︎ Vanadium: 3.0%︎ Carbon: 23.2%︎ Iron: 12.2%︎ Nickel: 9.2%︎ Phosphorus: 14.8%︎ Sulphur: 27.6%

      • ︎ BD+21 717 4 a - Icy body Landable

        Body distance
        1,760 Ls

        Earth masses
        0.0041
        Radius
        1,405 km
        Gravity
        0.08 g
        Surface temperature
        99 K (-174°C/-282°F)
        Surface pressure
        0.00 atm
        Volcanism
        Major Water geysers
        Atmosphere
        Terraforming

        ︎ Yttrium: 0.7%︎ Mercury: 0.5%︎ Tungsten: 0.7%︎ Chromium: 5.4%︎ Manganese: 4.9%︎ Vanadium: 2.9%︎ Carbon: 22.6%︎ Iron: 11.9%︎ Nickel: 9.0%︎ Phosphorus: 14.5%︎ Sulphur: 26.9%

      • ︎ BD+21 717 4 c - Icy body Landable

        Body distance
        1,763 Ls

        Earth masses
        0.0040
        Radius
        1,401 km
        Gravity
        0.08 g
        Surface temperature
        88 K (-185°C/-301°F)
        Surface pressure
        0.00 atm
        Volcanism
        Atmosphere
        Terraforming

        ︎ Selenium: 4.1%︎ Yttrium: 0.7%︎ Mercury: 0.5%︎ Niobium: 0.8%︎ Chromium: 5.3%︎ Manganese: 4.9%︎ Carbon: 22.3%︎ Iron: 11.8%︎ Nickel: 8.9%︎ Phosphorus: 14.3%︎ Sulphur: 26.5%

      • ︎ BD+21 717 4 g - Icy body Landable

        Body distance
        1,765 Ls
        Ring/belt type
        Icy (Pristine)

        Earth masses
        0.1654
        Radius
        4,736 km
        Gravity
        0.30 g
        Surface temperature
        79 K (-194°C/-318°F)
        Surface pressure
        0.04 atm
        Volcanism
        Atmosphere
        Thin Argon-rich
        Terraforming

        ︎ Selenium: 4.3%︎ Yttrium: 0.7%︎ Niobium: 0.8%︎ Tungsten: 0.6%︎ Chromium: 5.3%︎ Zinc: 3.2%︎ Carbon: 22.9%︎ Iron: 11.7%︎ Nickel: 8.8%︎ Phosphorus: 14.6%︎ Sulphur: 27.2%

    • ︎ BD+21 717 5 - Helium-rich gas giant

      Body distance
      2,592 Ls
      Ring/belt type
      Icy (Pristine)

      Earth masses
      326.5520
      Radius
      67,685 km
      Gravity
      2.90 g
      Surface temperature
      109 K (-164°C/-263°F)
      Surface pressure
      0.00 atm
      Volcanism
      Atmosphere
      Terraforming

      • ︎ BD+21 717 5 c - Icy body

        Body distance
        2,590 Ls

        Earth masses
        0.0051
        Radius
        1,517 km
        Gravity
        0.09 g
        Surface temperature
        203 K (-71°C/-95°F)
        Surface pressure
        37.04 atm
        Volcanism
        Atmosphere
        Thick Methane
        Terraforming

      • ︎ BD+21 717 5 b - Icy body

        Body distance
        2,592 Ls

        Earth masses
        0.0032
        Radius
        1,293 km
        Gravity
        0.08 g
        Surface temperature
        202 K (-71°C/-96°F)
        Surface pressure
        28.52 atm
        Volcanism
        Major Water geysers
        Atmosphere
        Thick Methane
        Terraforming

      • ︎ BD+21 717 5 a - Icy body

        Body distance
        2,593 Ls

        Earth masses
        0.0020
        Radius
        1,110 km
        Gravity
        0.07 g
        Surface temperature
        194 K (-79°C/-110°F)
        Surface pressure
        20.74 atm
        Volcanism
        Major Water geysers
        Atmosphere
        Thick Methane
        Terraforming

      • ︎ BD+21 717 5 d - Icy body

        Body distance
        2,596 Ls

        Earth masses
        0.0029
        Radius
        1,254 km
        Gravity
        0.07 g
        Surface temperature
        110 K (-163°C/-261°F)
        Surface pressure
        0.27 atm
        Volcanism
        Atmosphere
        Methane
        Terraforming

      • ︎ BD+21 717 5 e - Icy body

        Body distance
        2,612 Ls

        Earth masses
        0.0739
        Radius
        3,660 km
        Gravity
        0.22 g
        Surface temperature
        65 K (-208°C/-342°F)
        Surface pressure
        2.26 atm
        Volcanism
        Atmosphere
        Nitrogen
        Terraforming

    • ︎ BD+21 717 6 - Icy body

      Body distance
      3,533 Ls
      Ring/belt type
      Icy (Pristine)

      Earth masses
      34.9225
      Radius
      19,754 km
      Gravity
      3.64 g
      Surface temperature
      56 K (-217°C/-358°F)
      Surface pressure
      6.88 atm
      Volcanism
      Water geysers
      Atmosphere
      Thick Helium
      Terraforming