🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.73

Radius: 1.25

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 0.62 AU - 0.66 AU

Year: 331 Days

Day: 44.8 Hours

Environment

Temp: -133 °C

Axial Tilt: 29.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 995.6

Radius: 10.3

Gravity: 9.38 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 0.71 AU - 0.99 AU

Year: 506 Days

Day: 14.7 Hours

Environment

Temp: -142 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 53,024,676 km

• M1: 128,056 km (0.109 R)
• M2: 516,113 km (0.047 R)
• M3: 981,661 km (0.084 R)
• M4: 1,309,729 km (0.113 R)
• M5: 1,681,330 km (0.113 R)
• M6: 2,050,688 km (0.11 R)
• M7: 2,589,240 km (0.058 R)
• M8: 3,038,333 km (0.041 R)
• M9: 3,795,896 km (0.112 R)
• M10: 5,431,899 km (0.099 R)
• M11: 6,769,752 km (0.114 R)
• M12: 7,362,310 km (0.05 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 908.9

Radius: 14.7

Gravity: 4.21 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 1.82 AU - 1.86 AU

Year: 1612 Days

Day: 7.7 Hours

Environment

Temp: -189 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 53,024,676 km

• M1: 182,809 km (0.057 R)
• M2: 731,833 km (0.063 R)
• M3: 1,382,883 km (0.115 R)
• M4: 2,007,454 km (0.061 R)
• M5: 2,933,764 km (0.039 R)
• M6: 3,462,742 km (0.069 R)
• M7: 4,242,745 km (0.066 R)
• M8: 5,246,846 km (0.079 R)
• M9: 5,793,926 km (0.082 R)
• M10: 6,608,336 km (0.043 R)
• M11: 7,330,595 km (0.098 R)
• M12: 10,439,089 km (0.039 R)
• M13: 10,977,043 km (0.083 R)
• M14: 11,495,549 km (0.103 R)
• M15: 12,069,407 km (0.108 R)
• M16: 12,986,442 km (0.096 R)
• M17: 13,821,198 km (0.105 R)
• M18: 14,780,569 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 125.2

Radius: 8.8

Gravity: 1.62 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 4.45 AU - 6.05 AU

Year: 7767 Days

Day: 14.4 Hours

Environment

Temp: -226 °C

Axial Tilt: 15.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 53,024,676 km

• M1: 122,072 km (0.067 R)
• M2: 535,112 km (0.1 R)
• M3: 1,098,647 km (0.077 R)
• M4: 1,425,069 km (0.119 R)
• M5: 2,250,102 km (0.081 R)
• M6: 3,998,901 km (0.059 R)
• M7: 9,644,575 km (0.07 R)
• M8: 10,512,093 km (0.109 R)
• M9: 10,840,161 km (0.115 R)
• M10: 13,911,256 km (0.118 R)
• M11: 15,965,534 km (0.104 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 388.1

Radius: 7

Gravity: 7.92 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 6.54 AU - 6.68 AU

Year: 10973 Days

Day: 18.6 Hours

Environment

Temp: -227 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 53,024,676 km

• M1: 95,294 km (0.072 R)
• M2: 471,532 km (0.065 R)
• M3: 721,660 km (0.057 R)
• M4: 1,103,434 km (0.071 R)
• M5: 1,600,248 km (0.059 R)
• M6: 2,237,236 km (0.107 R)
• M7: 3,096,676 km (0.053 R)
• M8: 3,411,579 km (0.118 R)
• M9: 4,212,526 km (0.101 R)
• M10: 5,413,947 km (0.091 R)
• M11: 8,134,085 km (0.115 R)
• M12: 9,273,722 km (0.068 R)
• M13: 11,177,205 km (0.115 R)
• M14: 12,695,025 km (0.062 R)
• M15: 14,654,308 km (0.067 R)
• M16: 15,158,004 km (0.093 R)
• M17: 16,199,953 km (0.1 R)
• M18: 17,081,234 km (0.1 R)
• M19: 17,639,085 km (0.044 R)
• M20: 19,161,393 km (0.099 R)
• M21: 19,839,819 km (0.113 R)
• M22: 21,085,371 km (0.043 R)
• M23: 21,485,097 km (0.104 R)
• M24: 22,135,099 km (0.075 R)
• M25: 24,689,932 km (0.053 R)
• M26: 26,870,171 km (0.071 R)
• M27: 32,876,077 km (0.111 R)
• M28: 33,305,722 km (0.076 R)
• M29: 35,735,341 km (0.082 R)
• M30: 40,574,234 km (0.111 R)
• M31: 41,566,666 km (0.101 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 589.7

Radius: 6

Gravity: 16.38 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 7.12 AU - 10.88 AU

Year: 17433 Days

Day: 15.1 Hours

Environment

Temp: -231 °C

Axial Tilt: 27.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 53,024,676 km

• M1: 77,193 km (0.059 R)
• M2: 586,723 km (0.115 R)
• M3: 1,820,606 km (0.113 R)
• M4: 2,381,449 km (0.1 R)
• M5: 3,389,439 km (0.068 R)
• M6: 5,319,999 km (0.098 R)
• M7: 5,810,381 km (0.109 R)
• M8: 9,841,146 km (0.031 R)
• M9: 13,832,118 km (0.117 R)
• M10: 14,396,401 km (0.11 R)
• M11: 17,450,592 km (0.101 R)
• M12: 19,917,311 km (0.041 R)
• M13: 20,274,850 km (0.114 R)
• M14: 20,910,790 km (0.101 R)
• M15: 26,270,732 km (0.065 R)
• M16: 29,959,966 km (0.086 R)
• M17: 34,107,417 km (0.11 R)
• M18: 42,184,655 km (0.081 R)
• M19: 44,423,985 km (0.106 R)
• M20: 60,474,042 km (0.068 R)
• M21: 64,673,254 km (0.056 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.52 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 257.8

Radius: 7.8

Gravity: 4.24 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 7.2 AU - 11.84 AU

Year: 18966 Days

Day: 23 Hours

Environment

Temp: -232 °C

Axial Tilt: 2.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 53,024,676 km

• M1: 97,089 km (0.055 R)
• M2: 405,709 km (0.099 R)
• M3: 1,704,518 km (0.113 R)
• M4: 2,385,787 km (0.04 R)
• M5: 2,955,605 km (0.069 R)
• M6: 4,984,601 km (0.064 R)
• M7: 5,350,218 km (0.026 R)
• M8: 5,877,551 km (0.109 R)
• M9: 6,633,918 km (0.12 R)
• M10: 6,994,748 km (0.072 R)
• M11: 8,524,087 km (0.069 R)
• M12: 20,686,693 km (0.084 R)
• M13: 25,021,291 km (0.037 R)
• M14: 30,799,958 km (0.026 R)
• M15: 34,471,538 km (0.109 R)
• M16: 38,296,756 km (0.087 R)
• M17: 45,475,808 km (0.105 R)
• M18: 51,452,692 km (0.108 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 391 - 11,639 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit