🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 561.4

Radius: 8.7

Gravity: 7.42 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 0.74 AU - 0.96 AU

Year: 514 Days

Day: 10.2 Hours

Environment

Temp: -160 °C

Axial Tilt: 49.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 40,100,569 km

• M1: 108,159 km (0.106 R)
• M2: 409,449 km (0.111 R)
• M3: 701,315 km (0.105 R)
• M4: 1,133,054 km (0.09 R)
• M5: 1,457,532 km (0.085 R)
• M6: 1,932,804 km (0.088 R)
• M7: 2,225,268 km (0.109 R)
• M8: 2,508,008 km (0.098 R)
• M9: 2,944,684 km (0.114 R)
• M10: 3,517,495 km (0.09 R)
• M11: 4,024,781 km (0.116 R)
• M12: 4,791,620 km (0.086 R)
• M13: 5,185,661 km (0.093 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 221.8

Radius: 8.9

Gravity: 2.8 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 0.95 AU - 1.09 AU

Year: 676 Days

Day: 12.6 Hours

Environment

Temp: -161 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 40,100,569 km

• M1: 110,702 km (0.116 R)
• M2: 466,147 km (0.119 R)
• M3: 771,476 km (0.086 R)
• M4: 1,080,845 km (0.119 R)
• M5: 1,435,840 km (0.119 R)
• M6: 1,748,799 km (0.071 R)
• M7: 2,049,940 km (0.049 R)
• M8: 2,349,734 km (0.102 R)
• M9: 3,093,086 km (0.108 R)
• M10: 3,396,320 km (0.114 R)
• M11: 3,819,234 km (0.113 R)
• M12: 4,115,886 km (0.104 R)
• M13: 4,640,077 km (0.079 R)
• M14: 5,039,055 km (0.1 R)
• M15: 5,317,756 km (0.106 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 820.3

Radius: 10.4

Gravity: 7.58 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 1.13 AU - 1.63 AU

Year: 1063 Days

Day: 6.4 Hours

Environment

Temp: -171 °C

Axial Tilt: 7.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 40,100,569 km

• M1: 129,402 km (0.09 R)
• M2: 456,124 km (0.098 R)
• M3: 879,785 km (0.12 R)
• M4: 1,708,557 km (0.08 R)
• M5: 2,461,184 km (0.063 R)
• M6: 2,834,580 km (0.089 R)
• M7: 3,260,336 km (0.1 R)
• M8: 3,824,170 km (0.075 R)
• M9: 4,933,139 km (0.111 R)
• M10: 5,510,587 km (0.05 R)
• M11: 6,267,104 km (0.033 R)
• M12: 7,364,703 km (0.052 R)
• M13: 8,254,960 km (0.048 R)
• M14: 9,040,798 km (0.099 R)
• M15: 9,722,964 km (0.069 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 755.1

Radius: 13.6

Gravity: 4.08 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 2.6 AU - 3.22 AU

Year: 3256 Days

Day: 10.6 Hours

Environment

Temp: -204 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 40,100,569 km

• M1: 169,195 km (0.118 R)
• M2: 724,951 km (0.059 R)
• M3: 1,149,809 km (0.064 R)
• M4: 1,581,399 km (0.077 R)
• M5: 2,137,754 km (0.081 R)
• M6: 2,678,550 km (0.11 R)
• M7: 3,853,342 km (0.102 R)
• M8: 4,685,555 km (0.088 R)
• M9: 5,347,376 km (0.037 R)
• M10: 6,015,031 km (0.053 R)
• M11: 6,858,614 km (0.079 R)
• M12: 7,517,592 km (0.104 R)
• M13: 8,817,747 km (0.069 R)
• M14: 9,946,164 km (0.049 R)
• M15: 11,168,528 km (0.104 R)
• M16: 11,597,575 km (0.057 R)
• M17: 15,072,434 km (0.112 R)
• M18: 16,079,677 km (0.073 R)
• M19: 18,169,709 km (0.093 R)
• M20: 19,742,880 km (0.088 R)
• M21: 21,405,211 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 70.8

Radius: 14.9

Gravity: 0.32 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 3.19 AU - 3.83 AU

Year: 4314 Days

Day: 12.7 Hours

Environment

Temp: -206 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 40,100,569 km

• M1: 185,651 km (0.025 R)
• M2: 727,943 km (0.108 R)
• M3: 1,638,246 km (0.093 R)
• M4: 2,798,079 km (0.094 R)
• M5: 3,380,463 km (0.118 R)
• M6: 4,182,756 km (0.104 R)
• M7: 4,753,921 km (0.111 R)
• M8: 5,546,640 km (0.112 R)
• M9: 6,569,291 km (0.082 R)
• M10: 7,448,927 km (0.066 R)
• M11: 10,564,751 km (0.068 R)
• M12: 11,559,727 km (0.044 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 61.6

Radius: 13.1

Gravity: 0.36 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 3.73 AU - 6.03 AU

Year: 7072 Days

Day: 7.2 Hours

Environment

Temp: -226 °C

Axial Tilt: 15.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 40,100,569 km

• M1: 163,062 km (0.109 R)
• M2: 1,046,138 km (0.117 R)
• M3: 1,827,787 km (0.049 R)
• M4: 3,080,519 km (0.096 R)
• M5: 3,846,311 km (0.073 R)
• M6: 5,217,974 km (0.054 R)
• M7: 5,757,573 km (0.057 R)
• M8: 8,646,009 km (0.11 R)
• M9: 10,864,097 km (0.093 R)
• M10: 12,511,768 km (0.076 R)
• M11: 13,786,790 km (0.114 R)
• M12: 15,053,435 km (0.09 R)
• M13: 16,346,859 km (0.117 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 230

Radius: 6.2

Gravity: 5.98 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 6.35 AU - 8.45 AU

Year: 13206 Days

Day: 18.7 Hours

Environment

Temp: -216 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 40,100,569 km

• M1: 78,240 km (0.093 R)
• M2: 273,764 km (0.113 R)
• M3: 474,824 km (0.065 R)
• M4: 1,388,567 km (0.067 R)
• M5: 1,706,313 km (0.098 R)
• M6: 2,071,781 km (0.118 R)
• M7: 2,451,311 km (0.078 R)
• M8: 2,937,653 km (0.117 R)
• M9: 3,394,376 km (0.103 R)
• M10: 4,153,435 km (0.115 R)
• M11: 5,262,255 km (0.113 R)
• M12: 7,372,781 km (0.09 R)
• M13: 8,213,821 km (0.052 R)
• M14: 8,507,781 km (0.116 R)
• M15: 8,940,118 km (0.113 R)
• M16: 9,801,652 km (0.079 R)
• M17: 10,816,824 km (0.094 R)
• M18: 11,221,486 km (0.104 R)
• M19: 12,007,174 km (0.052 R)
• M20: 14,101,394 km (0.083 R)
• M21: 19,290,346 km (0.089 R)
• M22: 24,311,150 km (0.046 R)
• M23: 26,706,212 km (0.118 R)
• M24: 34,500,710 km (0.043 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 407 - 18,202 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit