🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 83.4

Radius: 9.3

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 0.63 AU - 0.77 AU

Year: 372 Days

Day: 10.2 Hours

Environment

Temp: -144 °C

Axial Tilt: 71.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 42,002,425 km

• M1: 115,789 km (0.111 R)
• M2: 417,378 km (0.108 R)
• M3: 719,416 km (0.092 R)
• M4: 1,281,306 km (0.052 R)
• M5: 2,153,461 km (0.07 R)
• M6: 2,581,461 km (0.108 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 551.7

Radius: 14.6

Gravity: 2.59 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 0.72 AU - 0.76 AU

Year: 405 Days

Day: 7.4 Hours

Environment

Temp: -139 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 42,002,425 km

• M1: 181,612 km (0.036 R)
• M2: 662,868 km (0.045 R)
• M3: 1,266,944 km (0.062 R)
• M4: 2,627,537 km (0.082 R)
• M5: 3,179,254 km (0.103 R)
• M6: 4,198,763 km (0.11 R)
• M7: 4,771,125 km (0.107 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 458.4

Radius: 12.1

Gravity: 3.13 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 1.24 AU - 2.06 AU

Year: 1348 Days

Day: 10.5 Hours

Environment

Temp: -179 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 42,002,425 km

• M1: 150,495 km (0.087 R)
• M2: 541,095 km (0.115 R)
• M3: 938,727 km (0.081 R)
• M4: 1,337,555 km (0.036 R)
• M5: 1,759,570 km (0.101 R)
• M6: 2,282,265 km (0.102 R)
• M7: 3,013,350 km (0.07 R)
• M8: 3,419,658 km (0.086 R)
• M9: 4,501,849 km (0.054 R)
• M10: 5,093,508 km (0.082 R)
• M11: 6,254,089 km (0.07 R)
• M12: 9,857,752 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 840.4

Radius: 8.8

Gravity: 10.85 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 1.75 AU - 1.83 AU

Year: 1523 Days

Day: 11.9 Hours

Environment

Temp: -186 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 42,002,425 km

• M1: 109,506 km (0.077 R)
• M2: 603,328 km (0.103 R)
• M3: 881,431 km (0.102 R)
• M4: 1,185,414 km (0.11 R)
• M5: 1,468,453 km (0.113 R)
• M6: 2,659,850 km (0.074 R)
• M7: 3,199,450 km (0.099 R)
• M8: 4,190,536 km (0.055 R)
• M9: 4,984,751 km (0.053 R)
• M10: 5,946,815 km (0.114 R)
• M11: 6,974,702 km (0.085 R)
• M12: 8,029,217 km (0.074 R)
• M13: 8,717,068 km (0.098 R)
• M14: 9,186,506 km (0.077 R)
• M15: 9,905,324 km (0.03 R)
• M16: 10,244,313 km (0.12 R)
• M17: 11,790,855 km (0.075 R)
• M18: 12,521,491 km (0.116 R)
• M19: 13,079,043 km (0.119 R)
• M20: 13,487,295 km (0.06 R)
• M21: 14,415,400 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 128.4

Radius: 8

Gravity: 2.01 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 1.82 AU - 2.14 AU

Year: 1771 Days

Day: 14.3 Hours

Environment

Temp: -197 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 42,002,425 km

• M1: 99,483 km (0.103 R)
• M2: 529,277 km (0.106 R)
• M3: 1,149,510 km (0.104 R)
• M4: 2,626,191 km (0.117 R)
• M5: 3,160,704 km (0.1 R)
• M6: 4,111,697 km (0.112 R)
• M7: 7,502,333 km (0.087 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 661.7

Radius: 13.8

Gravity: 3.47 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 2.97 AU - 3.45 AU

Year: 3657 Days

Day: 5.8 Hours

Environment

Temp: -198 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 42,002,425 km

• M1: 172,337 km (0.119 R)
• M2: 629,508 km (0.078 R)
• M3: 1,092,364 km (0.106 R)
• M4: 1,699,881 km (0.057 R)
• M5: 2,498,135 km (0.112 R)
• M6: 3,089,645 km (0.1 R)
• M7: 3,835,091 km (0.078 R)
• M8: 4,306,773 km (0.115 R)
• M9: 5,137,789 km (0.092 R)
• M10: 5,578,804 km (0.089 R)
• M11: 6,687,623 km (0.118 R)
• M12: 7,182,942 km (0.111 R)
• M13: 8,178,516 km (0.11 R)
• M14: 9,002,501 km (0.067 R)
• M15: 10,691,012 km (0.098 R)
• M16: 11,500,935 km (0.112 R)
• M17: 12,443,252 km (0.101 R)
• M18: 12,909,847 km (0.119 R)
• M19: 13,878,194 km (0.101 R)
• M20: 17,189,095 km (0.113 R)
• M21: 20,863,817 km (0.098 R)
• M22: 23,093,423 km (0.047 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 273.2

Radius: 13

Gravity: 1.62 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 5.37 AU - 6.77 AU

Year: 9509 Days

Day: 9.4 Hours

Environment

Temp: -211 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 42,002,425 km

• M1: 165,904 km (0.114 R)
• M2: 779,405 km (0.047 R)
• M3: 1,680,732 km (0.116 R)
• M4: 2,695,454 km (0.119 R)
• M5: 3,255,848 km (0.093 R)
• M6: 7,459,399 km (0.088 R)
• M7: 9,315,609 km (0.114 R)
• M8: 15,423,241 km (0.114 R)
• M9: 16,151,783 km (0.109 R)
• M10: 17,546,933 km (0.09 R)
• M11: 22,444,468 km (0.03 R)
• M12: 23,222,676 km (0.105 R)
• M13: 33,308,863 km (0.056 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 628.3

Radius: 7.1

Gravity: 12.46 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 5.81 AU - 6.63 AU

Year: 9863 Days

Day: 24.2 Hours

Environment

Temp: -217 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 42,002,425 km

• M1: 88,263 km (0.087 R)
• M2: 424,559 km (0.118 R)
• M3: 897,886 km (0.057 R)
• M4: 1,121,236 km (0.084 R)
• M5: 1,640,341 km (0.115 R)
• M6: 1,914,554 km (0.109 R)
• M7: 2,255,188 km (0.117 R)
• M8: 2,615,569 km (0.055 R)
• M9: 2,841,462 km (0.048 R)
• M10: 4,398,327 km (0.046 R)
• M11: 6,270,096 km (0.092 R)
• M12: 10,801,864 km (0.119 R)
• M13: 11,065,306 km (0.075 R)
• M14: 13,511,231 km (0.108 R)
• M15: 13,940,876 km (0.094 R)
• M16: 16,090,298 km (0.078 R)
• M17: 18,903,935 km (0.072 R)
• M18: 19,831,591 km (0.057 R)
• M19: 23,143,389 km (0.1 R)
• M20: 25,021,590 km (0.091 R)
• M21: 25,297,898 km (0.112 R)
• M22: 25,576,299 km (0.048 R)
• M23: 27,877,563 km (0.088 R)
• M24: 29,281,838 km (0.075 R)
• M25: 33,218,955 km (0.104 R)
• M26: 35,025,798 km (0.031 R)
• M27: 45,049,903 km (0.099 R)
• M28: 45,322,321 km (0.113 R)
• M29: 46,146,455 km (0.117 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 142.2

Radius: 4.8

Gravity: 6.17 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 7.43 AU - 11.15 AU

Year: 18003 Days

Day: 15.5 Hours

Environment

Temp: -230 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 42,002,425 km

• M1: 60,886 km (0.082 R)
• M2: 370,704 km (0.051 R)
• M3: 1,273,227 km (0.044 R)
• M4: 3,584,066 km (0.072 R)
• M5: 3,805,770 km (0.118 R)
• M6: 4,386,509 km (0.113 R)
• M7: 5,558,309 km (0.119 R)
• M8: 6,482,375 km (0.094 R)
• M9: 7,909,239 km (0.088 R)
• M10: 15,780,032 km (0.113 R)
• M11: 19,963,686 km (0.101 R)
• M12: 22,765,056 km (0.106 R)
• M13: 26,551,976 km (0.098 R)
• M14: 29,231,125 km (0.074 R)
• M15: 36,936,462 km (0.076 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 167 - 16,148 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit