🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 145.1

Radius: 8.2

Gravity: 2.16 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 0.65 AU - 0.87 AU

Year: 457 Days

Day: 10.6 Hours

Environment

Temp: -171 °C

Axial Tilt: 42.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 38,793,796 km

• M1: 102,923 km (0.091 R)
• M2: 359,484 km (0.097 R)
• M3: 850,165 km (0.085 R)
• M4: 1,109,268 km (0.115 R)
• M5: 1,411,306 km (0.084 R)
• M6: 1,679,834 km (0.082 R)
• M7: 1,968,858 km (0.111 R)
• M8: 2,440,988 km (0.038 R)
• M9: 3,157,113 km (0.072 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 632.8

Radius: 9.7

Gravity: 6.73 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 1.59 AU - 1.73 AU

Year: 1476 Days

Day: 8.9 Hours

Environment

Temp: -185 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 38,793,796 km

• M1: 121,025 km (0.081 R)
• M2: 438,920 km (0.101 R)
• M3: 1,070,971 km (0.082 R)
• M4: 1,411,306 km (0.097 R)
• M5: 1,834,369 km (0.045 R)
• M6: 2,143,737 km (0.072 R)
• M7: 3,199,599 km (0.085 R)
• M8: 3,734,561 km (0.108 R)
• M9: 4,346,267 km (0.088 R)
• M10: 4,783,841 km (0.099 R)
• M11: 5,505,800 km (0.111 R)
• M12: 6,064,847 km (0.105 R)
• M13: 6,466,218 km (0.066 R)
• M14: 7,750,666 km (0.028 R)
• M15: 10,478,882 km (0.119 R)
• M16: 11,730,268 km (0.055 R)
• M17: 12,058,187 km (0.06 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 711.3

Radius: 8.1

Gravity: 10.84 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 1.66 AU - 2.36 AU

Year: 1967 Days

Day: 7.9 Hours

Environment

Temp: -195 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 38,793,796 km

• M1: 100,679 km (0.119 R)
• M2: 645,515 km (0.069 R)
• M3: 907,311 km (0.055 R)
• M4: 1,490,593 km (0.114 R)
• M5: 1,905,129 km (0.087 R)
• M6: 2,177,247 km (0.114 R)
• M7: 2,543,613 km (0.115 R)
• M8: 2,981,486 km (0.116 R)
• M9: 3,434,767 km (0.11 R)
• M10: 3,749,820 km (0.109 R)
• M11: 4,478,960 km (0.093 R)
• M12: 4,855,797 km (0.094 R)
• M13: 5,185,960 km (0.118 R)
• M14: 5,507,446 km (0.103 R)
• M15: 5,842,395 km (0.117 R)
• M16: 7,348,247 km (0.045 R)
• M17: 8,237,308 km (0.055 R)
• M18: 9,736,877 km (0.026 R)
• M19: 10,919,298 km (0.101 R)
• M20: 14,946,024 km (0.117 R)
• M21: 15,410,376 km (0.052 R)
• M22: 15,693,565 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 192.9

Radius: 11.6

Gravity: 1.43 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 3.53 AU - 3.75 AU

Year: 4794 Days

Day: 13.8 Hours

Environment

Temp: -222 °C

Axial Tilt: 17.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 38,793,796 km

• M1: 144,212 km (0.119 R)
• M2: 563,535 km (0.065 R)
• M3: 1,285,943 km (0.043 R)
• M4: 1,771,239 km (0.11 R)
• M5: 3,003,925 km (0.093 R)
• M6: 3,409,335 km (0.048 R)
• M7: 4,228,683 km (0.086 R)
• M8: 5,560,702 km (0.098 R)
• M9: 6,364,193 km (0.062 R)
• M10: 7,302,919 km (0.061 R)
• M11: 13,027,431 km (0.084 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 681.5

Radius: 14.7

Gravity: 3.15 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 3.51 AU - 5.03 AU

Year: 6091 Days

Day: 9.7 Hours

Environment

Temp: -225 °C

Axial Tilt: 46.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 38,793,796 km

• M1: 204,500 km (0.12 R)
• M2: 833,709 km (0.076 R)
• M3: 1,480,121 km (0.085 R)
• M4: 2,258,629 km (0.115 R)
• M5: 3,599,175 km (0.074 R)
• M6: 4,881,379 km (0.074 R)
• M7: 5,538,113 km (0.063 R)
• M8: 6,253,191 km (0.064 R)
• M9: 7,099,915 km (0.081 R)
• M10: 8,652,890 km (0.109 R)
• M11: 11,862,812 km (0.112 R)
• M12: 16,474,466 km (0.098 R)
• M13: 23,887,938 km (0.118 R)
• M14: 25,700,017 km (0.094 R)
• M15: 26,813,025 km (0.026 R)
• M16: 27,779,726 km (0.086 R)
• M17: 29,135,233 km (0.106 R)
• M18: 30,063,188 km (0.062 R)
• M19: 33,466,540 km (0.067 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 802

Radius: 6.7

Gravity: 17.87 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 6.28 AU - 8.88 AU

Year: 14405 Days

Day: 20.8 Hours

Environment

Temp: -240 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 38,793,796 km

• M1: 83,326 km (0.113 R)
• M2: 346,917 km (0.094 R)
• M3: 1,214,436 km (0.116 R)
• M4: 1,718,730 km (0.066 R)
• M5: 2,502,772 km (0.081 R)
• M6: 3,422,949 km (0.082 R)
• M7: 3,871,443 km (0.092 R)
• M8: 5,527,941 km (0.089 R)
• M9: 6,105,388 km (0.066 R)
• M10: 6,595,621 km (0.114 R)
• M11: 7,516,246 km (0.114 R)
• M12: 7,888,595 km (0.107 R)
• M13: 8,976,321 km (0.102 R)
• M14: 11,324,559 km (0.076 R)
• M15: 14,475,988 km (0.034 R)
• M16: 15,719,445 km (0.104 R)
• M17: 16,953,328 km (0.065 R)
• M18: 18,584,843 km (0.059 R)
• M19: 20,140,361 km (0.074 R)
• M20: 23,019,223 km (0.071 R)
• M21: 26,055,611 km (0.05 R)
• M22: 27,779,277 km (0.038 R)
• M23: 29,692,634 km (0.056 R)
• M24: 31,213,745 km (0.082 R)
• M25: 34,410,502 km (0.104 R)
• M26: 36,087,943 km (0.056 R)
• M27: 38,499,311 km (0.12 R)
• M28: 46,841,188 km (0.067 R)
• M29: 51,513,728 km (0.102 R)
• M30: 59,547,133 km (0.11 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 104.9

Radius: 7

Gravity: 2.14 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 8.8 AU - 9.18 AU

Year: 18606 Days

Day: 20 Hours

Environment

Temp: -226 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 38,793,796 km

• M1: 130,599 km (0.103 R)
• M2: 488,138 km (0.083 R)
• M3: 1,251,386 km (0.067 R)
• M4: 2,620,506 km (0.087 R)
• M5: 3,121,808 km (0.086 R)
• M6: 4,896,488 km (0.071 R)
• M7: 6,422,087 km (0.118 R)
• M8: 7,407,189 km (0.069 R)
• M9: 8,158,469 km (0.119 R)
• M10: 16,286,122 km (0.066 R)
• M11: 17,689,200 km (0.108 R)
• M12: 21,821,542 km (0.081 R)
• M13: 22,059,403 km (0.079 R)
• M14: 23,440,790 km (0.081 R)
• M15: 26,644,877 km (0.094 R)
• M16: 27,099,056 km (0.053 R)
• M17: 27,466,169 km (0.113 R)
• M18: 34,439,375 km (0.092 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 184 - 11,966 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit