🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 120.6

Radius: 13.1

Gravity: 0.7 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 0.51 AU - 0.65 AU

Year: 310 Days

Day: 8.1 Hours

Environment

Temp: -158 °C

Axial Tilt: 9.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 43,419,374 km

• M1: 162,912 km (0.112 R)
• M2: 648,956 km (0.088 R)
• M3: 1,088,773 km (0.08 R)
• M4: 1,791,883 km (0.071 R)
• M5: 2,422,289 km (0.086 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 441.2

Radius: 10.3

Gravity: 4.16 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 0.56 AU - 0.9 AU

Year: 438 Days

Day: 8.6 Hours

Environment

Temp: -150 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 43,419,374 km

• M1: 128,056 km (0.106 R)
• M2: 466,446 km (0.086 R)
• M3: 866,920 km (0.113 R)
• M4: 1,239,418 km (0.05 R)
• M5: 1,671,607 km (0.104 R)
• M6: 2,120,849 km (0.106 R)
• M7: 2,697,698 km (0.09 R)
• M8: 3,421,602 km (0.102 R)
• M9: 3,922,606 km (0.108 R)
• M10: 4,256,807 km (0.063 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 984.9

Radius: 13.3

Gravity: 5.57 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 0.73 AU - 0.75 AU

Year: 447 Days

Day: 7.9 Hours

Environment

Temp: -160 °C

Axial Tilt: 44.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 43,419,374 km

• M1: 166,353 km (0.034 R)
• M2: 588,069 km (0.113 R)
• M3: 1,058,405 km (0.085 R)
• M4: 1,789,789 km (0.09 R)
• M5: 2,467,168 km (0.061 R)
• M6: 3,997,255 km (0.11 R)
• M7: 4,501,550 km (0.101 R)
• M8: 5,329,424 km (0.113 R)
• M9: 6,218,933 km (0.108 R)
• M10: 6,758,981 km (0.095 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 13.2

Radius: 11.5

Gravity: 0.1 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 0.68 AU - 1.1 AU

Year: 590 Days

Day: 8.4 Hours

Environment

Temp: -164 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 43,419,374 km

• M1: 143,016 km (0.108 R)
• M2: 525,089 km (0.078 R)
• M3: 907,610 km (0.106 R)
• M4: 1,311,225 km (0.077 R)
• M5: 1,705,266 km (0.063 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 240.9

Radius: 10.7

Gravity: 2.1 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 1.26 AU - 1.58 AU

Year: 1189 Days

Day: 9.6 Hours

Environment

Temp: -198 °C

Axial Tilt: 45.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 43,419,374 km

• M1: 133,142 km (0.099 R)
• M2: 469,438 km (0.092 R)
• M3: 1,001,259 km (0.101 R)
• M4: 1,769,593 km (0.12 R)
• M5: 2,174,854 km (0.026 R)
• M6: 2,789,103 km (0.115 R)
• M7: 3,251,809 km (0.102 R)
• M8: 3,611,293 km (0.068 R)
• M9: 4,458,765 km (0.038 R)
• M10: 4,904,267 km (0.077 R)
• M11: 6,139,347 km (0.108 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 794.6

Radius: 13.8

Gravity: 4.17 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 2.38 AU - 3.74 AU

Year: 3763 Days

Day: 14.8 Hours

Environment

Temp: -219 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 43,419,374 km

• M1: 171,589 km (0.057 R)
• M2: 679,174 km (0.03 R)
• M3: 1,368,073 km (0.079 R)
• M4: 1,968,858 km (0.111 R)
• M5: 3,183,592 km (0.078 R)
• M6: 3,859,475 km (0.117 R)
• M7: 4,950,343 km (0.047 R)
• M8: 5,392,405 km (0.052 R)
• M9: 5,860,796 km (0.057 R)
• M10: 7,333,138 km (0.091 R)
• M11: 8,516,756 km (0.083 R)
• M12: 9,703,516 km (0.079 R)
• M13: 10,526,005 km (0.119 R)
• M14: 11,528,910 km (0.09 R)
• M15: 12,030,511 km (0.084 R)
• M16: 13,323,934 km (0.09 R)
• M17: 16,585,318 km (0.072 R)
• M18: 17,284,538 km (0.111 R)
• M19: 18,866,984 km (0.088 R)
• M20: 20,017,841 km (0.083 R)
• M21: 22,459,128 km (0.105 R)
• M22: 23,099,407 km (0.034 R)
• M23: 24,565,466 km (0.042 R)
• M24: 26,249,041 km (0.1 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 117.2

Radius: 7.9

Gravity: 1.88 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 8.79 AU - 10.37 AU

Year: 20843 Days

Day: 15.1 Hours

Environment

Temp: -239 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 43,419,374 km

• M1: 99,183 km (0.063 R)
• M2: 381,475 km (0.03 R)
• M3: 775,067 km (0.11 R)
• M4: 1,401,283 km (0.107 R)
• M5: 1,831,228 km (0.086 R)
• M6: 2,589,689 km (0.102 R)
• M7: 2,954,857 km (0.072 R)
• M8: 3,788,566 km (0.08 R)
• M9: 7,624,854 km (0.111 R)
• M10: 7,994,959 km (0.111 R)
• M11: 8,248,378 km (0.119 R)
• M12: 9,455,633 km (0.091 R)
• M13: 10,323,300 km (0.103 R)
• M14: 14,206,263 km (0.114 R)
• M15: 15,537,983 km (0.091 R)
• M16: 15,933,220 km (0.071 R)
• M17: 16,470,726 km (0.062 R)
• M18: 20,894,484 km (0.084 R)
• M19: 37,123,460 km (0.094 R)
• M20: 37,593,646 km (0.076 R)
• M21: 40,622,554 km (0.091 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: 438 - 17,451 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit