🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 788.6

Radius: 9.3

Gravity: 9.12 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 0.53 AU - 0.77 AU

Year: 368 Days

Day: 13.6 Hours

Environment

Temp: -147 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 68,688,504 km

• M1: 115,639 km (0.076 R)
• M2: 585,975 km (0.113 R)
• M3: 1,321,697 km (0.028 R)
• M4: 1,625,082 km (0.065 R)
• M5: 2,487,513 km (0.11 R)
• M6: 2,831,439 km (0.111 R)
• M7: 3,173,719 km (0.077 R)
• M8: 3,579,578 km (0.066 R)
• M9: 4,059,488 km (0.117 R)
• M10: 4,370,203 km (0.108 R)
• M11: 4,697,074 km (0.111 R)
• M12: 5,055,361 km (0.108 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 419.1

Radius: 13.5

Gravity: 2.3 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 1.01 AU - 1.69 AU

Year: 1103 Days

Day: 8.4 Hours

Environment

Temp: -194 °C

Axial Tilt: 45.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 68,688,504 km

• M1: 167,849 km (0.076 R)
• M2: 633,248 km (0.112 R)
• M3: 1,598,752 km (0.097 R)
• M4: 2,668,078 km (0.081 R)
• M5: 3,134,225 km (0.053 R)
• M6: 4,169,741 km (0.067 R)
• M7: 5,346,179 km (0.1 R)
• M8: 6,156,252 km (0.08 R)
• M9: 8,554,156 km (0.089 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 112.3

Radius: 12.5

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 1.21 AU - 1.61 AU

Year: 1177 Days

Day: 6.2 Hours

Environment

Temp: -188 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 68,688,504 km

• M1: 155,432 km (0.097 R)
• M2: 1,898,098 km (0.097 R)
• M3: 2,874,224 km (0.105 R)
• M4: 3,372,834 km (0.064 R)
• M5: 4,023,136 km (0.098 R)
• M6: 4,725,198 km (0.108 R)
• M7: 5,591,968 km (0.065 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 84.1

Radius: 10.5

Gravity: 0.76 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 1.63 AU - 1.81 AU

Year: 1586 Days

Day: 5.7 Hours

Environment

Temp: -205 °C

Axial Tilt: 44.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 68,688,504 km

• M1: 130,599 km (0.117 R)
• M2: 458,218 km (0.06 R)
• M3: 859,889 km (0.086 R)
• M4: 1,934,300 km (0.11 R)
• M5: 2,293,485 km (0.115 R)
• M6: 3,597,679 km (0.103 R)
• M7: 4,441,262 km (0.08 R)
• M8: 5,359,793 km (0.098 R)
• M9: 6,246,758 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 723.9

Radius: 13.2

Gravity: 4.15 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 2.08 AU - 2.42 AU

Year: 2372 Days

Day: 11.9 Hours

Environment

Temp: -215 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 68,688,504 km

• M1: 164,109 km (0.111 R)
• M2: 1,036,713 km (0.075 R)
• M3: 1,934,300 km (0.107 R)
• M4: 3,084,558 km (0.066 R)
• M5: 3,820,281 km (0.063 R)
• M6: 4,499,306 km (0.108 R)
• M7: 5,471,991 km (0.072 R)
• M8: 7,144,346 km (0.095 R)
• M9: 8,305,524 km (0.094 R)
• M10: 10,204,071 km (0.118 R)
• M11: 13,639,436 km (0.082 R)
• M12: 14,325,193 km (0.072 R)
• M13: 14,938,095 km (0.106 R)
• M14: 17,726,899 km (0.076 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 865

Radius: 14.1

Gravity: 4.35 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 2.66 AU - 3.6 AU

Year: 3892 Days

Day: 7.4 Hours

Environment

Temp: -212 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 68,688,504 km

• M1: 197,469 km (0.119 R)
• M2: 727,644 km (0.073 R)
• M3: 1,292,526 km (0.116 R)
• M4: 2,899,356 km (0.101 R)
• M5: 3,364,755 km (0.097 R)
• M6: 4,261,295 km (0.073 R)
• M7: 6,222,823 km (0.094 R)
• M8: 7,202,539 km (0.106 R)
• M9: 8,392,740 km (0.11 R)
• M10: 8,881,177 km (0.102 R)
• M11: 10,634,015 km (0.119 R)
• M12: 11,251,555 km (0.111 R)
• M13: 13,149,354 km (0.114 R)
• M14: 18,310,181 km (0.065 R)
• M15: 20,182,548 km (0.107 R)
• M16: 21,337,892 km (0.086 R)
• M17: 23,116,312 km (0.07 R)
• M18: 24,079,273 km (0.076 R)
• M19: 26,724,313 km (0.084 R)
• M20: 27,292,037 km (0.111 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 991.5

Radius: 11.9

Gravity: 7 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 3.79 AU - 3.89 AU

Year: 5289 Days

Day: 8.9 Hours

Environment

Temp: -226 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 68,688,504 km

• M1: 149,598 km (0.09 R)
• M2: 1,327,083 km (0.113 R)
• M3: 2,936,157 km (0.088 R)
• M4: 3,323,317 km (0.112 R)
• M5: 4,053,504 km (0.109 R)
• M6: 5,084,981 km (0.068 R)
• M7: 7,181,895 km (0.1 R)
• M8: 10,026,498 km (0.118 R)
• M9: 12,209,131 km (0.112 R)
• M10: 13,773,326 km (0.105 R)
• M11: 14,400,441 km (0.038 R)
• M12: 14,809,292 km (0.105 R)
• M13: 24,876,331 km (0.04 R)
• M14: 26,497,822 km (0.083 R)
• M15: 28,370,638 km (0.086 R)
• M16: 30,521,556 km (0.063 R)
• M17: 31,686,026 km (0.108 R)
• M18: 34,935,591 km (0.049 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 415.4

Radius: 7.2

Gravity: 8.01 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 8.51 AU - 11.37 AU

Year: 22029 Days

Day: 23 Hours

Environment

Temp: -243 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 68,688,504 km

• M1: 94,247 km (0.095 R)
• M2: 516,861 km (0.092 R)
• M3: 1,762,562 km (0.117 R)
• M4: 3,236,999 km (0.099 R)
• M5: 4,285,231 km (0.084 R)
• M6: 4,714,427 km (0.057 R)
• M7: 6,508,854 km (0.117 R)
• M8: 9,959,478 km (0.036 R)
• M9: 13,612,957 km (0.083 R)
• M10: 15,055,530 km (0.119 R)
• M11: 19,015,685 km (0.101 R)
• M12: 20,263,032 km (0.078 R)
• M13: 31,407,175 km (0.069 R)
• M14: 31,774,737 km (0.103 R)
• M15: 39,313,572 km (0.099 R)
• M16: 41,625,907 km (0.112 R)
• M17: 52,468,461 km (0.08 R)
• M18: 53,332,688 km (0.118 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 373 - 14,231 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit