🌌 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: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.81

Radius: 1.71

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 0.6 AU - 0.66 AU

Year: 323 Days

Day: 20.6 Hours

Environment

Temp: -127 °C

Axial Tilt: 11.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 515.6

Radius: 10.5

Gravity: 4.68 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.56 AU - 0.9 AU

Year: 403 Days

Day: 11.7 Hours

Environment

Temp: -137 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 29,273,101 km

• M1: 130,599 km (0.097 R)
• M2: 552,914 km (0.038 R)
• M3: 1,124,976 km (0.03 R)
• M4: 1,546,393 km (0.099 R)
• M5: 1,917,396 km (0.115 R)
• M6: 2,374,417 km (0.069 R)
• M7: 3,016,192 km (0.1 R)
• M8: 3,475,009 km (0.049 R)
• M9: 3,917,370 km (0.083 R)
• M10: 4,506,037 km (0.03 R)
• M11: 5,048,330 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 807.9

Radius: 9.9

Gravity: 8.24 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 1.12 AU - 1.66 AU

Year: 1058 Days

Day: 6.7 Hours

Environment

Temp: -172 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 29,273,101 km

• M1: 123,568 km (0.054 R)
• M2: 595,400 km (0.031 R)
• M3: 929,900 km (0.12 R)
• M4: 1,680,732 km (0.103 R)
• M5: 2,165,878 km (0.084 R)
• M6: 3,088,448 km (0.113 R)
• M7: 3,448,530 km (0.096 R)
• M8: 4,358,384 km (0.111 R)
• M9: 4,946,005 km (0.088 R)
• M10: 5,969,105 km (0.072 R)
• M11: 6,980,985 km (0.113 R)
• M12: 7,528,064 km (0.098 R)
• M13: 8,906,459 km (0.111 R)
• M14: 9,490,639 km (0.118 R)
• M15: 9,883,782 km (0.115 R)
• M16: 10,930,967 km (0.118 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 668

Radius: 11.1

Gravity: 5.42 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 1.44 AU - 2.14 AU

Year: 1546 Days

Day: 10.2 Hours

Environment

Temp: -175 °C

Axial Tilt: 45.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 29,273,101 km

• M1: 138,079 km (0.094 R)
• M2: 534,064 km (0.108 R)
• M3: 929,900 km (0.103 R)
• M4: 1,501,065 km (0.079 R)
• M5: 1,863,241 km (0.047 R)
• M6: 2,468,066 km (0.085 R)
• M7: 2,838,021 km (0.044 R)
• M8: 3,275,894 km (0.048 R)
• M9: 3,625,355 km (0.118 R)
• M10: 4,708,443 km (0.117 R)
• M11: 5,176,685 km (0.089 R)
• M12: 5,653,453 km (0.069 R)
• M13: 6,302,558 km (0.096 R)
• M14: 7,052,642 km (0.116 R)
• M15: 7,973,417 km (0.031 R)
• M16: 8,972,581 km (0.114 R)
• M17: 10,053,127 km (0.111 R)
• M18: 10,936,502 km (0.052 R)
• M19: 11,687,184 km (0.08 R)
• M20: 12,586,716 km (0.112 R)
• M21: 13,132,449 km (0.065 R)
• M22: 13,653,199 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 948

Radius: 8.6

Gravity: 12.82 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 2.68 AU - 3.02 AU

Year: 3107 Days

Day: 11.5 Hours

Environment

Temp: -208 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 29,273,101 km

• M1: 107,561 km (0.103 R)
• M2: 377,435 km (0.115 R)
• M3: 847,921 km (0.062 R)
• M4: 1,189,153 km (0.074 R)
• M5: 1,763,759 km (0.12 R)
• M6: 2,142,840 km (0.075 R)
• M7: 2,420,045 km (0.1 R)
• M8: 2,771,151 km (0.111 R)
• M9: 3,119,864 km (0.1 R)
• M10: 4,143,562 km (0.085 R)
• M11: 5,040,999 km (0.088 R)
• M12: 5,644,028 km (0.112 R)
• M13: 6,412,363 km (0.115 R)
• M14: 8,155,777 km (0.078 R)
• M15: 9,250,235 km (0.11 R)
• M16: 10,815,627 km (0.076 R)
• M17: 13,361,483 km (0.081 R)
• M18: 15,950,275 km (0.069 R)
• M19: 18,856,064 km (0.119 R)
• M20: 20,111,190 km (0.118 R)
• M21: 21,154,635 km (0.103 R)
• M22: 21,824,983 km (0.112 R)
• M23: 23,562,562 km (0.074 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 187.9

Radius: 14.7

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 5.49 AU - 6.37 AU

Year: 9324 Days

Day: 7.6 Hours

Environment

Temp: -230 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 29,273,101 km

• M1: 182,809 km (0.111 R)
• M2: 672,592 km (0.073 R)
• M3: 1,417,141 km (0.079 R)
• M4: 2,003,415 km (0.087 R)
• M5: 2,531,495 km (0.063 R)
• M6: 3,658,266 km (0.027 R)
• M7: 5,798,862 km (0.066 R)
• M8: 7,464,485 km (0.11 R)
• M9: 7,999,746 km (0.101 R)
• M10: 9,067,725 km (0.118 R)
• M11: 9,803,298 km (0.107 R)
• M12: 18,776,777 km (0.074 R)
• M13: 21,503,796 km (0.11 R)
• M14: 22,006,894 km (0.099 R)
• M15: 24,485,282 km (0.07 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 97

Radius: 7.6

Gravity: 1.68 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 6.31 AU - 8.25 AU

Year: 12683 Days

Day: 19.5 Hours

Environment

Temp: -217 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 29,273,101 km

• M1: 132,245 km (0.037 R)
• M2: 440,416 km (0.101 R)
• M3: 1,181,674 km (0.104 R)
• M4: 3,965,092 km (0.101 R)
• M5: 4,340,881 km (0.09 R)
• M6: 4,975,625 km (0.096 R)
• M7: 5,469,747 km (0.107 R)
• M8: 8,870,406 km (0.118 R)
• M9: 10,449,860 km (0.092 R)
• M10: 12,702,056 km (0.09 R)
• M11: 17,950,697 km (0.093 R)
• M12: 22,228,000 km (0.069 R)
• M13: 23,262,918 km (0.104 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 361 - 10,617 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit