🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 722.9

Radius: 10.6

Gravity: 6.43 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 0.4 AU - 0.66 AU

Year: 257 Days

Day: 12 Hours

Environment

Temp: -132 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 78,674,363 km

• M1: 132,095 km (0.078 R)
• M2: 461,809 km (0.062 R)
• M3: 919,429 km (0.074 R)
• M4: 1,327,532 km (0.07 R)
• M5: 1,856,659 km (0.118 R)
• M6: 2,265,809 km (0.086 R)
• M7: 2,808,550 km (0.106 R)
• M8: 3,207,079 km (0.064 R)
• M9: 3,576,885 km (0.062 R)
• M10: 3,916,622 km (0.101 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 643.5

Radius: 11.2

Gravity: 5.13 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 0.61 AU - 0.61 AU

Year: 318 Days

Day: 8.7 Hours

Environment

Temp: -150 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 78,674,363 km

• M1: 139,276 km (0.05 R)
• M2: 601,683 km (0.099 R)
• M3: 999,015 km (0.092 R)
• M4: 1,411,755 km (0.087 R)
• M5: 1,852,022 km (0.119 R)
• M6: 2,283,013 km (0.11 R)
• M7: 2,809,298 km (0.091 R)
• M8: 3,190,175 km (0.118 R)
• M9: 4,245,887 km (0.117 R)
• M10: 4,709,042 km (0.083 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 433.2

Radius: 10.6

Gravity: 3.86 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 0.63 AU - 0.77 AU

Year: 391 Days

Day: 10.5 Hours

Environment

Temp: -159 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 78,674,363 km

• M1: 131,796 km (0.118 R)
• M2: 714,330 km (0.11 R)
• M3: 1,294,171 km (0.06 R)
• M4: 1,893,610 km (0.111 R)
• M5: 2,401,943 km (0.064 R)
• M6: 4,154,632 km (0.073 R)
• M7: 4,640,077 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 122.3

Radius: 12.4

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 0.72 AU - 0.82 AU

Year: 451 Days

Day: 12.7 Hours

Environment

Temp: -160 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 78,674,363 km

• M1: 154,385 km (0.116 R)
• M2: 873,352 km (0.109 R)
• M3: 1,342,042 km (0.08 R)
• M4: 2,040,515 km (0.118 R)
• M5: 2,678,849 km (0.108 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 942.1

Radius: 8.8

Gravity: 12.17 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 0.76 AU - 0.94 AU

Year: 523 Days

Day: 12.9 Hours

Environment

Temp: -178 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 78,674,363 km

• M1: 119,678 km (0.111 R)
• M2: 440,715 km (0.114 R)
• M3: 787,334 km (0.043 R)
• M4: 1,337,555 km (0.089 R)
• M5: 2,153,611 km (0.079 R)
• M6: 2,770,403 km (0.075 R)
• M7: 3,120,761 km (0.077 R)
• M8: 3,840,177 km (0.058 R)
• M9: 4,523,241 km (0.026 R)
• M10: 5,198,227 km (0.111 R)
• M11: 6,168,219 km (0.078 R)
• M12: 6,706,622 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 499.6

Radius: 12

Gravity: 3.47 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 2.81 AU - 4.27 AU

Year: 4442 Days

Day: 9.2 Hours

Environment

Temp: -206 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 78,674,363 km

• M1: 149,299 km (0.098 R)
• M2: 878,738 km (0.111 R)
• M3: 1,256,921 km (0.072 R)
• M4: 2,501,127 km (0.119 R)
• M5: 4,724,600 km (0.045 R)
• M6: 6,694,355 km (0.044 R)
• M7: 7,069,547 km (0.097 R)
• M8: 11,547,759 km (0.077 R)
• M9: 16,933,133 km (0.085 R)
• M10: 18,350,722 km (0.106 R)
• M11: 21,691,392 km (0.051 R)
• M12: 22,101,290 km (0.063 R)
• M13: 25,042,085 km (0.067 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 361

Radius: 8

Gravity: 5.64 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 8.63 AU - 8.93 AU

Year: 17349 Days

Day: 22.7 Hours

Environment

Temp: -227 °C

Axial Tilt: 10.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 78,674,363 km

• M1: 99,782 km (0.104 R)
• M2: 778,358 km (0.106 R)
• M3: 1,843,644 km (0.096 R)
• M4: 2,312,185 km (0.06 R)
• M5: 2,880,357 km (0.053 R)
• M6: 4,661,021 km (0.104 R)
• M7: 4,918,030 km (0.098 R)
• M8: 5,819,357 km (0.071 R)
• M9: 6,465,620 km (0.096 R)
• M10: 8,174,177 km (0.064 R)
• M11: 11,271,003 km (0.087 R)
• M12: 12,517,901 km (0.105 R)
• M13: 31,205,667 km (0.057 R)
• M14: 35,592,475 km (0.028 R)
• M15: 35,965,123 km (0.034 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 996.1

Radius: 6.3

Gravity: 25.1 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 7.66 AU - 9.96 AU

Year: 17438 Days

Day: 17.7 Hours

Environment

Temp: -229 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 78,674,363 km

• M1: 133,740 km (0.11 R)
• M2: 485,295 km (0.083 R)
• M3: 915,240 km (0.049 R)
• M4: 1,785,301 km (0.054 R)
• M5: 2,015,083 km (0.115 R)
• M6: 2,243,220 km (0.084 R)
• M7: 2,928,678 km (0.107 R)
• M8: 3,535,596 km (0.101 R)
• M9: 4,528,627 km (0.119 R)
• M10: 8,448,540 km (0.032 R)
• M11: 9,100,487 km (0.101 R)
• M12: 9,902,781 km (0.103 R)
• M13: 10,751,449 km (0.101 R)
• M14: 11,713,364 km (0.106 R)
• M15: 11,912,478 km (0.111 R)
• M16: 14,787,600 km (0.115 R)
• M17: 17,311,017 km (0.053 R)
• M18: 18,719,481 km (0.104 R)
• M19: 19,451,613 km (0.113 R)
• M20: 19,731,062 km (0.088 R)
• M21: 25,562,536 km (0.074 R)
• M22: 27,268,550 km (0.09 R)
• M23: 30,653,501 km (0.046 R)
• M24: 30,905,574 km (0.112 R)
• M25: 34,853,162 km (0.05 R)
• M26: 36,381,005 km (0.062 R)
• M27: 36,805,415 km (0.096 R)
• M28: 40,926,088 km (0.11 R)
• M29: 46,996,021 km (0.115 R)
• M30: 48,858,964 km (0.111 R)
• M31: 51,300,551 km (0.113 R)
• M32: 54,005,280 km (0.084 R)
• M33: 64,322,746 km (0.099 R)
• M34: 67,039,892 km (0.083 R)
• M35: 68,749,497 km (0.054 R)
• M36: 70,268,962 km (0.051 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 259 - 10,847 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit