🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 200.8

Radius: 10.5

Gravity: 1.82 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 0.55 AU - 0.55 AU

Year: 272 Days

Day: 15 Hours

Environment

Temp: -150 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 57,227,143 km

• M1: 130,599 km (0.112 R)
• M2: 464,053 km (0.086 R)
• M3: 913,893 km (0.088 R)
• M4: 1,385,725 km (0.09 R)
• M5: 1,855,014 km (0.12 R)
• M6: 2,443,382 km (0.11 R)
• M7: 2,790,150 km (0.092 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 256.4

Radius: 13.9

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 1.07 AU - 1.55 AU

Year: 1000 Days

Day: 5.1 Hours

Environment

Temp: -176 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 57,227,143 km

• M1: 172,935 km (0.12 R)
• M2: 648,656 km (0.112 R)
• M3: 1,304,793 km (0.093 R)
• M4: 2,468,514 km (0.067 R)
• M5: 2,965,778 km (0.101 R)
• M6: 3,978,855 km (0.091 R)
• M7: 5,331,668 km (0.102 R)
• M8: 5,963,121 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 190.9

Radius: 11.2

Gravity: 1.52 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 1.09 AU - 1.69 AU

Year: 1093 Days

Day: 8.7 Hours

Environment

Temp: -183 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 57,227,143 km

• M1: 139,276 km (0.108 R)
• M2: 588,368 km (0.067 R)
• M3: 1,092,214 km (0.115 R)
• M4: 1,459,477 km (0.075 R)
• M5: 2,268,801 km (0.1 R)
• M6: 2,693,510 km (0.112 R)
• M7: 3,533,801 km (0.08 R)
• M8: 4,209,983 km (0.117 R)
• M9: 6,764,217 km (0.04 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 399

Radius: 10.9

Gravity: 3.36 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 1.41 AU - 2.03 AU

Year: 1504 Days

Day: 13 Hours

Environment

Temp: -195 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 57,227,143 km

• M1: 135,536 km (0.111 R)
• M2: 516,113 km (0.103 R)
• M3: 1,274,873 km (0.069 R)
• M4: 2,207,317 km (0.114 R)
• M5: 2,687,227 km (0.094 R)
• M6: 3,040,726 km (0.107 R)
• M7: 3,455,112 km (0.091 R)
• M8: 4,156,427 km (0.039 R)
• M9: 5,672,153 km (0.105 R)
• M10: 6,258,726 km (0.12 R)
• M11: 7,005,668 km (0.074 R)
• M12: 9,368,118 km (0.084 R)
• M13: 10,002,114 km (0.075 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 85.1

Radius: 9.3

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 1.83 AU - 1.91 AU

Year: 1705 Days

Day: 14.4 Hours

Environment

Temp: -196 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 57,227,143 km

• M1: 135,984 km (0.058 R)
• M2: 1,047,933 km (0.079 R)
• M3: 2,609,286 km (0.038 R)
• M4: 5,499,218 km (0.103 R)
• M5: 6,580,661 km (0.091 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 689.2

Radius: 7.7

Gravity: 11.62 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 7.25 AU - 7.75 AU

Year: 13697 Days

Day: 24.6 Hours

Environment

Temp: -232 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 57,227,143 km

• M1: 95,892 km (0.099 R)
• M2: 371,152 km (0.11 R)
• M3: 717,023 km (0.062 R)
• M4: 2,259,975 km (0.056 R)
• M5: 2,924,638 km (0.087 R)
• M6: 5,485,156 km (0.099 R)
• M7: 7,667,340 km (0.031 R)
• M8: 9,881,987 km (0.104 R)
• M9: 11,048,401 km (0.098 R)
• M10: 21,174,083 km (0.105 R)
• M11: 24,061,621 km (0.074 R)
• M12: 25,751,478 km (0.059 R)
• M13: 33,063,972 km (0.112 R)
• M14: 33,547,023 km (0.113 R)
• M15: 34,403,770 km (0.119 R)
• M16: 35,526,502 km (0.031 R)
• M17: 39,310,281 km (0.085 R)
• M18: 40,262,173 km (0.11 R)
• M19: 53,906,396 km (0.042 R)
• M20: 54,912,142 km (0.059 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 239.2

Radius: 7.1

Gravity: 4.75 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 10.11 AU - 10.51 AU

Year: 22076 Days

Day: 16.6 Hours

Environment

Temp: -242 °C

Axial Tilt: 124.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 57,227,143 km

• M1: 88,562 km (0.051 R)
• M2: 545,434 km (0.105 R)
• M3: 970,441 km (0.108 R)
• M4: 2,236,488 km (0.077 R)
• M5: 3,053,592 km (0.112 R)
• M6: 4,694,980 km (0.102 R)
• M7: 5,541,853 km (0.062 R)
• M8: 6,328,738 km (0.089 R)
• M9: 7,847,605 km (0.071 R)
• M10: 10,837,917 km (0.063 R)
• M11: 12,492,170 km (0.071 R)
• M12: 13,706,157 km (0.078 R)
• M13: 18,373,461 km (0.091 R)
• M14: 19,436,055 km (0.116 R)
• M15: 29,673,785 km (0.07 R)
• M16: 38,629,910 km (0.107 R)
• M17: 41,327,309 km (0.108 R)
• M18: 42,300,444 km (0.032 R)
• M19: 45,457,856 km (0.074 R)
• M20: 50,325,771 km (0.073 R)
• M21: 56,544,255 km (0.073 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: 206 - 15,418 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit