🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 267.4

Radius: 9.4

Gravity: 3.03 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 0.59 AU - 0.95 AU

Year: 451 Days

Day: 10.2 Hours

Environment

Temp: -155 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 42,483,289 km

• M1: 116,836 km (0.08 R)
• M2: 482,304 km (0.118 R)
• M3: 835,504 km (0.114 R)
• M4: 1,404,275 km (0.033 R)
• M5: 1,946,268 km (0.064 R)
• M6: 2,873,476 km (0.119 R)
• M7: 3,425,342 km (0.084 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 52.9

Radius: 8.4

Gravity: 0.75 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 0.8 AU - 1.24 AU

Year: 687 Days

Day: 5.2 Hours

Environment

Temp: -171 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 42,483,289 km

• M1: 104,419 km (0.114 R)
• M2: 779,255 km (0.115 R)
• M3: 1,379,891 km (0.063 R)
• M4: 1,649,616 km (0.048 R)
• M5: 1,995,636 km (0.034 R)
• M6: 2,335,821 km (0.092 R)
• M7: 3,190,474 km (0.094 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 825.4

Radius: 10.1

Gravity: 8.09 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 0.94 AU - 1.3 AU

Year: 790 Days

Day: 5 Hours

Environment

Temp: -174 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 42,483,289 km

• M1: 125,662 km (0.053 R)
• M2: 483,500 km (0.068 R)
• M3: 998,715 km (0.092 R)
• M4: 1,443,919 km (0.092 R)
• M5: 1,878,500 km (0.04 R)
• M6: 2,410,321 km (0.044 R)
• M7: 2,814,534 km (0.112 R)
• M8: 3,401,108 km (0.05 R)
• M9: 4,373,494 km (0.075 R)
• M10: 5,106,224 km (0.099 R)
• M11: 6,271,292 km (0.085 R)
• M12: 6,927,578 km (0.101 R)
• M13: 7,461,343 km (0.101 R)
• M14: 8,377,331 km (0.052 R)
• M15: 9,091,811 km (0.12 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 873.4

Radius: 13

Gravity: 5.17 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 2.95 AU - 4.51 AU

Year: 4804 Days

Day: 14 Hours

Environment

Temp: -210 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 42,483,289 km

• M1: 161,715 km (0.074 R)
• M2: 568,023 km (0.083 R)
• M3: 1,291,179 km (0.11 R)
• M4: 1,821,055 km (0.109 R)
• M5: 2,253,243 km (0.046 R)
• M6: 2,736,743 km (0.084 R)
• M7: 3,149,484 km (0.056 R)
• M8: 5,240,114 km (0.059 R)
• M9: 5,913,155 km (0.055 R)
• M10: 8,245,087 km (0.07 R)
• M11: 10,491,448 km (0.047 R)
• M12: 12,249,373 km (0.068 R)
• M13: 12,859,583 km (0.108 R)
• M14: 13,489,988 km (0.086 R)
• M15: 14,474,192 km (0.06 R)
• M16: 16,280,587 km (0.078 R)
• M17: 17,523,147 km (0.103 R)
• M18: 19,710,267 km (0.099 R)
• M19: 20,905,405 km (0.111 R)
• M20: 22,073,764 km (0.064 R)
• M21: 23,131,421 km (0.084 R)
• M22: 23,828,996 km (0.085 R)
• M23: 27,357,262 km (0.119 R)
• M24: 29,742,600 km (0.054 R)
• M25: 30,475,181 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 152.6

Radius: 15

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 3.36 AU - 4.62 AU

Year: 5315 Days

Day: 13.4 Hours

Environment

Temp: -220 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 42,483,289 km

• M1: 187,895 km (0.099 R)
• M2: 759,957 km (0.072 R)
• M3: 1,478,177 km (0.055 R)
• M4: 4,305,277 km (0.087 R)
• M5: 5,276,018 km (0.092 R)
• M6: 5,813,972 km (0.08 R)
• M7: 6,307,944 km (0.115 R)
• M8: 8,539,495 km (0.12 R)
• M9: 10,903,441 km (0.089 R)
• M10: 12,320,731 km (0.117 R)
• M11: 12,834,001 km (0.118 R)
• M12: 13,316,903 km (0.078 R)
• M13: 13,995,180 km (0.105 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 439.6

Radius: 9

Gravity: 5.43 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 3.63 AU - 4.97 AU

Year: 5946 Days

Day: 13 Hours

Environment

Temp: -223 °C

Axial Tilt: 47.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 42,483,289 km

• M1: 111,899 km (0.112 R)
• M2: 430,543 km (0.09 R)
• M3: 711,039 km (0.091 R)
• M4: 1,216,679 km (0.104 R)
• M5: 1,906,774 km (0.092 R)
• M6: 2,427,525 km (0.081 R)
• M7: 3,517,345 km (0.12 R)
• M8: 4,183,355 km (0.109 R)
• M9: 6,625,390 km (0.098 R)
• M10: 7,120,260 km (0.11 R)
• M11: 7,604,209 km (0.063 R)
• M12: 9,554,966 km (0.105 R)
• M13: 10,579,711 km (0.093 R)
• M14: 11,027,607 km (0.103 R)
• M15: 12,300,386 km (0.104 R)
• M16: 13,356,098 km (0.12 R)
• M17: 16,885,112 km (0.081 R)
• M18: 18,187,511 km (0.12 R)
• M19: 20,162,502 km (0.067 R)
• M20: 21,770,529 km (0.113 R)
• M21: 23,462,182 km (0.092 R)
• M22: 26,857,007 km (0.094 R)
• M23: 27,188,515 km (0.1 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 623

Radius: 6.4

Gravity: 15.21 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 5.7 AU - 6.68 AU

Year: 10270 Days

Day: 18.4 Hours

Environment

Temp: -231 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 42,483,289 km

• M1: 80,184 km (0.1 R)
• M2: 295,456 km (0.062 R)
• M3: 782,098 km (0.104 R)
• M4: 1,172,099 km (0.083 R)
• M5: 1,431,801 km (0.099 R)
• M6: 1,684,771 km (0.109 R)
• M7: 2,244,866 km (0.115 R)
• M8: 2,450,712 km (0.096 R)
• M9: 3,501,637 km (0.067 R)
• M10: 5,105,476 km (0.111 R)
• M11: 5,530,484 km (0.054 R)
• M12: 6,339,808 km (0.037 R)
• M13: 7,346,901 km (0.062 R)
• M14: 7,677,213 km (0.089 R)
• M15: 9,870,916 km (0.107 R)
• M16: 10,738,883 km (0.071 R)
• M17: 12,567,268 km (0.114 R)
• M18: 12,980,308 km (0.102 R)
• M19: 16,545,824 km (0.1 R)
• M20: 19,751,257 km (0.114 R)
• M21: 20,796,198 km (0.059 R)
• M22: 21,457,271 km (0.081 R)
• M23: 22,647,921 km (0.04 R)
• M24: 24,606,606 km (0.033 R)
• M25: 26,579,203 km (0.117 R)
• M26: 28,857,878 km (0.086 R)
• M27: 29,164,404 km (0.101 R)
• M28: 30,942,524 km (0.108 R)
• M29: 33,461,453 km (0.067 R)
• M30: 34,944,118 km (0.112 R)
• M31: 35,175,995 km (0.107 R)
• M32: 37,068,408 km (0.099 R)
• M33: 38,039,597 km (0.084 R)
• M34: 44,497,288 km (0.119 R)
• M35: 46,849,116 km (0.092 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 23.4

Radius: 6.9

Gravity: 0.49 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 7.15 AU - 8.85 AU

Year: 15089 Days

Day: 18.9 Hours

Environment

Temp: -240 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 42,483,289 km

• M1: 85,869 km (0.037 R)
• M2: 587,920 km (0.101 R)
• M3: 974,481 km (0.032 R)
• M4: 3,819,533 km (0.091 R)
• M5: 5,108,019 km (0.119 R)
• M6: 5,996,930 km (0.089 R)
• M7: 6,955,254 km (0.04 R)
• M8: 7,658,962 km (0.117 R)
• M9: 8,959,416 km (0.089 R)
• M10: 9,279,257 km (0.098 R)
• M11: 14,018,068 km (0.1 R)
• M12: 16,686,745 km (0.083 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 35.6

Radius: 4.3

Gravity: 1.93 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 7.1 AU - 10.78 AU

Year: 17825 Days

Day: 24.6 Hours

Environment

Temp: -239 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 42,483,289 km

• M1: 53,406 km (0.09 R)
• M2: 299,944 km (0.091 R)
• M3: 1,057,956 km (0.114 R)
• M4: 1,426,416 km (0.085 R)
• M5: 1,683,126 km (0.113 R)
• M6: 2,558,273 km (0.098 R)
• M7: 3,010,657 km (0.095 R)
• M8: 4,185,898 km (0.107 R)
• M9: 4,662,367 km (0.09 R)
• M10: 9,848,925 km (0.104 R)
• M11: 10,559,216 km (0.071 R)
• M12: 18,060,053 km (0.046 R)
• M13: 19,830,095 km (0.106 R)
• M14: 20,555,944 km (0.081 R)
• M15: 22,983,319 km (0.06 R)
• M16: 25,594,999 km (0.108 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 113.6

Radius: 3.9

Gravity: 7.47 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 8.14 AU - 11.48 AU

Year: 20490 Days

Day: 18.9 Hours

Environment

Temp: -231 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 42,483,289 km

• M1: 48,769 km (0.076 R)
• M2: 215,870 km (0.075 R)
• M3: 414,087 km (0.101 R)
• M4: 743,950 km (0.093 R)
• M5: 1,324,988 km (0.038 R)
• M6: 1,806,245 km (0.119 R)
• M7: 1,931,009 km (0.117 R)
• M8: 2,951,865 km (0.095 R)
• M9: 4,770,826 km (0.063 R)
• M10: 5,102,335 km (0.107 R)
• M11: 5,481,116 km (0.106 R)
• M12: 7,070,145 km (0.036 R)
• M13: 13,332,611 km (0.105 R)
• M14: 15,689,974 km (0.104 R)
• M15: 15,821,321 km (0.114 R)
• M16: 16,829,162 km (0.084 R)
• M17: 18,094,311 km (0.12 R)
• M18: 25,470,234 km (0.093 R)
• M19: 30,572,868 km (0.077 R)
• M20: 31,086,737 km (0.112 R)
• M21: 37,124,806 km (0.053 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 212 - 11,007 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit