🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 859.6

Radius: 8.4

Gravity: 12.18 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 0.45 AU - 0.57 AU

Year: 247 Days

Day: 6.4 Hours

Environment

Temp: -147 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 45,309,890 km

• M1: 104,719 km (0.069 R)
• M2: 430,842 km (0.053 R)
• M3: 884,722 km (0.038 R)
• M4: 1,159,683 km (0.069 R)
• M5: 1,510,789 km (0.106 R)
• M6: 1,776,624 km (0.08 R)
• M7: 2,128,179 km (0.06 R)
• M8: 2,543,313 km (0.045 R)
• M9: 2,855,973 km (0.099 R)
• M10: 3,256,446 km (0.104 R)
• M11: 3,570,004 km (0.107 R)
• M12: 4,145,955 km (0.108 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 97.4

Radius: 8.7

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 0.54 AU - 0.58 AU

Year: 284 Days

Day: 10 Hours

Environment

Temp: -139 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 45,309,890 km

• M1: 108,159 km (0.115 R)
• M2: 467,942 km (0.029 R)
• M3: 976,126 km (0.059 R)
• M4: 1,397,095 km (0.108 R)
• M5: 1,855,313 km (0.102 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 239.5

Radius: 13.1

Gravity: 1.4 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 0.71 AU - 0.87 AU

Year: 476 Days

Day: 6.5 Hours

Environment

Temp: -166 °C

Axial Tilt: 8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 45,309,890 km

• M1: 162,912 km (0.119 R)
• M2: 606,619 km (0.034 R)
• M3: 1,099,993 km (0.046 R)
• M4: 1,530,536 km (0.08 R)
• M5: 1,951,504 km (0.1 R)
• M6: 3,185,986 km (0.096 R)
• M7: 3,656,322 km (0.047 R)
• M8: 4,148,499 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 105.8

Radius: 10.7

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 1.21 AU - 1.33 AU

Year: 971 Days

Day: 8.4 Hours

Environment

Temp: -183 °C

Axial Tilt: 5.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 45,309,890 km

• M1: 133,890 km (0.052 R)
• M2: 873,801 km (0.085 R)
• M3: 1,238,072 km (0.079 R)
• M4: 1,741,170 km (0.079 R)
• M5: 2,815,731 km (0.084 R)
• M6: 3,906,599 km (0.12 R)
• M7: 4,576,648 km (0.102 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 787

Radius: 10.2

Gravity: 7.56 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 2.36 AU - 3.65 AU

Year: 3524 Days

Day: 5.2 Hours

Environment

Temp: -209 °C

Axial Tilt: 41.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 45,309,890 km

• M1: 127,308 km (0.088 R)
• M2: 530,474 km (0.113 R)
• M3: 869,313 km (0.11 R)
• M4: 1,420,133 km (0.054 R)
• M5: 2,080,757 km (0.11 R)
• M6: 2,413,014 km (0.088 R)
• M7: 3,858,129 km (0.12 R)
• M8: 4,410,295 km (0.115 R)
• M9: 4,864,624 km (0.062 R)
• M10: 5,591,071 km (0.037 R)
• M11: 6,240,475 km (0.032 R)
• M12: 7,162,148 km (0.119 R)
• M13: 7,588,801 km (0.117 R)
• M14: 8,349,356 km (0.113 R)
• M15: 8,933,835 km (0.061 R)
• M16: 9,901,584 km (0.093 R)
• M17: 10,937,699 km (0.063 R)
• M18: 11,637,817 km (0.114 R)
• M19: 13,322,139 km (0.072 R)
• M20: 15,812,944 km (0.068 R)
• M21: 17,401,224 km (0.116 R)
• M22: 19,787,011 km (0.108 R)
• M23: 23,154,459 km (0.114 R)
• M24: 23,798,777 km (0.111 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 979.1

Radius: 9.3

Gravity: 11.32 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 2.68 AU - 4.42 AU

Year: 4537 Days

Day: 5.3 Hours

Environment

Temp: -216 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 45,309,890 km

• M1: 115,639 km (0.107 R)
• M2: 588,518 km (0.098 R)
• M3: 1,386,174 km (0.102 R)
• M4: 1,777,372 km (0.085 R)
• M5: 2,210,159 km (0.066 R)
• M6: 2,990,761 km (0.059 R)
• M7: 3,562,972 km (0.058 R)
• M8: 4,952,288 km (0.111 R)
• M9: 5,487,250 km (0.071 R)
• M10: 6,154,157 km (0.062 R)
• M11: 7,010,904 km (0.098 R)
• M12: 7,360,814 km (0.043 R)
• M13: 7,722,392 km (0.12 R)
• M14: 9,041,396 km (0.112 R)
• M15: 10,504,762 km (0.103 R)
• M16: 11,340,566 km (0.111 R)
• M17: 12,020,638 km (0.109 R)
• M18: 12,370,697 km (0.067 R)
• M19: 13,143,968 km (0.085 R)
• M20: 13,785,444 km (0.082 R)
• M21: 21,176,327 km (0.094 R)
• M22: 22,132,407 km (0.079 R)
• M23: 22,887,128 km (0.096 R)
• M24: 23,193,803 km (0.073 R)
• M25: 23,737,143 km (0.077 R)
• M26: 24,130,436 km (0.119 R)
• M27: 27,607,389 km (0.063 R)
• M28: 29,105,014 km (0.112 R)
• M29: 30,010,829 km (0.047 R)
• M30: 30,935,344 km (0.054 R)
• M31: 31,688,569 km (0.045 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 417.4

Radius: 12.4

Gravity: 2.71 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 3.26 AU - 5.12 AU

Year: 5817 Days

Day: 11.1 Hours

Environment

Temp: -221 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 45,309,890 km

• M1: 193,729 km (0.047 R)
• M2: 672,442 km (0.072 R)
• M3: 1,112,111 km (0.104 R)
• M4: 2,553,336 km (0.054 R)
• M5: 3,759,843 km (0.086 R)
• M6: 4,347,165 km (0.085 R)
• M7: 5,126,719 km (0.101 R)
• M8: 6,964,379 km (0.073 R)
• M9: 8,068,561 km (0.073 R)
• M10: 8,700,911 km (0.08 R)
• M11: 9,527,440 km (0.119 R)
• M12: 10,448,813 km (0.082 R)
• M13: 13,830,174 km (0.042 R)
• M14: 16,374,534 km (0.102 R)
• M15: 19,609,887 km (0.109 R)
• M16: 27,730,658 km (0.117 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 204.8

Radius: 3.5

Gravity: 16.72 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 7.73 AU - 9.27 AU

Year: 16808 Days

Day: 21.7 Hours

Environment

Temp: -225 °C

Axial Tilt: 174.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 45,309,890 km

• M1: 43,533 km (0.093 R)
• M2: 157,377 km (0.08 R)
• M3: 411,095 km (0.103 R)
• M4: 725,699 km (0.106 R)
• M5: 876,344 km (0.072 R)
• M6: 2,137,903 km (0.072 R)
• M7: 2,262,817 km (0.108 R)
• M8: 2,749,459 km (0.071 R)
• M9: 2,940,645 km (0.105 R)
• M10: 3,518,392 km (0.072 R)
• M11: 5,942,775 km (0.087 R)
• M12: 6,408,324 km (0.114 R)
• M13: 8,921,269 km (0.075 R)
• M14: 9,059,497 km (0.085 R)
• M15: 9,387,566 km (0.062 R)
• M16: 9,626,773 km (0.044 R)
• M17: 16,244,833 km (0.045 R)
• M18: 17,293,514 km (0.05 R)
• M19: 18,017,268 km (0.113 R)
• M20: 19,293,488 km (0.064 R)
• M21: 21,359,883 km (0.105 R)
• M22: 21,524,740 km (0.099 R)
• M23: 29,646,408 km (0.107 R)
• M24: 31,526,554 km (0.1 R)
• M25: 35,177,042 km (0.062 R)
• M26: 41,999,153 km (0.118 R)
• M27: 43,303,348 km (0.088 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 485 - 13,978 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit