🌌 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: 380.9

Radius: 11.7

Gravity: 2.78 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 0.43 AU - 0.63 AU

Year: 266 Days

Day: 5.5 Hours

Environment

Temp: -144 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 33,900,390 km

• M1: 145,559 km (0.112 R)
• M2: 549,323 km (0.11 R)
• M3: 1,200,373 km (0.099 R)
• M4: 1,689,858 km (0.058 R)
• M5: 2,207,616 km (0.072 R)
• M6: 2,635,017 km (0.055 R)
• M7: 3,052,993 km (0.115 R)
• M8: 3,444,940 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 986.5

Radius: 15

Gravity: 4.38 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 0.85 AU - 0.93 AU

Year: 580 Days

Day: 8.4 Hours

Environment

Temp: -172 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 33,900,390 km

• M1: 186,549 km (0.111 R)
• M2: 708,795 km (0.112 R)
• M3: 1,332,618 km (0.042 R)
• M4: 2,083,300 km (0.084 R)
• M5: 2,643,993 km (0.096 R)
• M6: 3,608,600 km (0.055 R)
• M7: 4,272,066 km (0.06 R)
• M8: 6,135,158 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 220

Radius: 9.7

Gravity: 2.34 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 0.97 AU - 1.27 AU

Year: 818 Days

Day: 11.7 Hours

Environment

Temp: -187 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 33,900,390 km

• M1: 120,875 km (0.104 R)
• M2: 422,913 km (0.088 R)
• M3: 734,526 km (0.115 R)
• M4: 1,174,493 km (0.07 R)
• M5: 1,559,259 km (0.044 R)
• M6: 1,872,517 km (0.06 R)
• M7: 2,578,618 km (0.088 R)
• M8: 3,320,325 km (0.087 R)
• M9: 3,702,996 km (0.12 R)
• M10: 4,032,859 km (0.059 R)
• M11: 4,411,192 km (0.083 R)
• M12: 4,937,029 km (0.038 R)
• M13: 5,571,473 km (0.033 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 621.1

Radius: 14.6

Gravity: 2.91 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 1.2 AU - 1.56 AU

Year: 1119 Days

Day: 6.2 Hours

Environment

Temp: -179 °C

Axial Tilt: 5.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 33,900,390 km

• M1: 181,612 km (0.089 R)
• M2: 753,674 km (0.096 R)
• M3: 1,253,331 km (0.057 R)
• M4: 1,858,604 km (0.053 R)
• M5: 2,997,343 km (0.094 R)
• M6: 4,151,341 km (0.119 R)
• M7: 4,631,999 km (0.081 R)
• M8: 5,686,215 km (0.043 R)
• M9: 7,573,093 km (0.092 R)
• M10: 9,493,930 km (0.07 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 641.2

Radius: 14.2

Gravity: 3.18 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 1.66 AU - 1.76 AU

Year: 1543 Days

Day: 13.6 Hours

Environment

Temp: -199 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 33,900,390 km

• M1: 176,525 km (0.048 R)
• M2: 625,319 km (0.104 R)
• M3: 1,101,040 km (0.088 R)
• M4: 2,081,355 km (0.111 R)
• M5: 2,527,456 km (0.066 R)
• M6: 3,096,078 km (0.074 R)
• M7: 3,650,786 km (0.095 R)
• M8: 4,199,362 km (0.03 R)
• M9: 4,962,461 km (0.065 R)
• M10: 5,463,613 km (0.1 R)
• M11: 6,568,543 km (0.072 R)
• M12: 7,599,123 km (0.066 R)
• M13: 8,181,807 km (0.069 R)
• M14: 9,468,797 km (0.099 R)
• M15: 10,680,839 km (0.112 R)
• M16: 11,737,599 km (0.119 R)
• M17: 12,254,010 km (0.118 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 553.7

Radius: 14.9

Gravity: 2.49 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 2.88 AU - 4.4 AU

Year: 4794 Days

Day: 12.9 Hours

Environment

Temp: -223 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 33,900,390 km

• M1: 185,651 km (0.108 R)
• M2: 904,170 km (0.1 R)
• M3: 1,484,609 km (0.077 R)
• M4: 1,963,173 km (0.04 R)
• M5: 2,881,405 km (0.066 R)
• M6: 3,725,286 km (0.051 R)
• M7: 7,239,490 km (0.117 R)
• M8: 7,714,164 km (0.06 R)
• M9: 11,507,966 km (0.073 R)
• M10: 18,633,312 km (0.037 R)
• M11: 20,722,447 km (0.091 R)
• M12: 22,104,881 km (0.038 R)
• M13: 24,899,967 km (0.114 R)
• M14: 26,223,759 km (0.097 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 64.5

Radius: 7.2

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 5.33 AU - 8.11 AU

Year: 12024 Days

Day: 17.5 Hours

Environment

Temp: -234 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 33,900,390 km

• M1: 114,143 km (0.118 R)
• M2: 358,287 km (0.116 R)
• M3: 1,080,994 km (0.104 R)
• M4: 2,097,961 km (0.047 R)
• M5: 3,069,449 km (0.074 R)
• M6: 3,584,215 km (0.111 R)
• M7: 6,530,097 km (0.034 R)
• M8: 8,231,024 km (0.085 R)
• M9: 14,703,676 km (0.069 R)
• M10: 15,935,913 km (0.103 R)
• M11: 19,979,544 km (0.039 R)
• M12: 21,690,943 km (0.098 R)
• M13: 24,146,144 km (0.051 R)
• M14: 24,438,009 km (0.118 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 167.6

Radius: 7.7

Gravity: 2.83 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 5.58 AU - 7.86 AU

Year: 12024 Days

Day: 18.4 Hours

Environment

Temp: -234 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 33,900,390 km

• M1: 96,042 km (0.082 R)
• M2: 417,827 km (0.097 R)
• M3: 928,704 km (0.04 R)
• M4: 1,224,309 km (0.063 R)
• M5: 1,508,246 km (0.098 R)
• M6: 2,055,026 km (0.062 R)
• M7: 2,783,418 km (0.104 R)
• M8: 3,494,606 km (0.063 R)
• M9: 4,024,332 km (0.051 R)
• M10: 5,968,955 km (0.086 R)
• M11: 6,488,808 km (0.094 R)
• M12: 9,166,759 km (0.085 R)
• M13: 11,890,637 km (0.089 R)
• M14: 12,504,138 km (0.063 R)
• M15: 13,084,877 km (0.083 R)
• M16: 14,414,204 km (0.109 R)
• M17: 15,289,351 km (0.056 R)
• M18: 16,199,654 km (0.114 R)
• M19: 16,636,480 km (0.101 R)
• M20: 21,447,697 km (0.066 R)
• M21: 22,203,017 km (0.115 R)
• M22: 26,763,807 km (0.115 R)
• M23: 27,286,801 km (0.109 R)
• M24: 29,538,997 km (0.069 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 298 - 20,189 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit