🌌 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 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.18

Radius: 1.77

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 0.53 AU - 0.63 AU

Year: 285 Days

Day: 23.4 Hours

Environment

Temp: -135 °C

Axial Tilt: 18.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 644.8

Radius: 9

Gravity: 7.96 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.72 AU - 0.92 AU

Year: 479 Days

Day: 5.4 Hours

Environment

Temp: -139 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 47,673,892 km

• M1: 112,049 km (0.067 R)
• M2: 534,513 km (0.065 R)
• M3: 929,003 km (0.063 R)
• M4: 1,233,434 km (0.068 R)
• M5: 1,934,749 km (0.08 R)
• M6: 2,290,792 km (0.086 R)
• M7: 2,858,815 km (0.106 R)
• M8: 3,347,252 km (0.098 R)
• M9: 4,490,928 km (0.113 R)
• M10: 5,072,116 km (0.12 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 952.1

Radius: 12.4

Gravity: 6.19 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 1.44 AU - 1.96 AU

Year: 1431 Days

Day: 6.8 Hours

Environment

Temp: -191 °C

Axial Tilt: 157.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 47,673,892 km

• M1: 154,535 km (0.109 R)
• M2: 619,934 km (0.107 R)
• M3: 1,067,231 km (0.107 R)
• M4: 1,456,335 km (0.066 R)
• M5: 1,921,285 km (0.111 R)
• M6: 2,359,458 km (0.083 R)
• M7: 2,893,073 km (0.071 R)
• M8: 3,506,424 km (0.102 R)
• M9: 4,627,810 km (0.109 R)
• M10: 6,022,661 km (0.111 R)
• M11: 7,403,299 km (0.07 R)
• M12: 8,374,938 km (0.062 R)
• M13: 9,462,215 km (0.08 R)
• M14: 9,855,957 km (0.104 R)
• M15: 10,852,877 km (0.073 R)
• M16: 12,105,908 km (0.109 R)
• M17: 12,492,320 km (0.092 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 373

Radius: 12.4

Gravity: 2.43 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 1.57 AU - 1.97 AU

Year: 1520 Days

Day: 12.2 Hours

Environment

Temp: -191 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 47,673,892 km

• M1: 154,235 km (0.095 R)
• M2: 586,424 km (0.091 R)
• M3: 1,028,485 km (0.026 R)
• M4: 1,424,321 km (0.058 R)
• M5: 1,856,958 km (0.055 R)
• M6: 2,553,187 km (0.112 R)
• M7: 3,132,430 km (0.119 R)
• M8: 3,581,373 km (0.087 R)
• M9: 5,332,416 km (0.114 R)
• M10: 5,890,416 km (0.115 R)
• M11: 6,328,738 km (0.096 R)
• M12: 6,788,751 km (0.079 R)
• M13: 7,470,319 km (0.05 R)
• M14: 8,942,063 km (0.103 R)
• M15: 9,761,859 km (0.097 R)
• M16: 10,314,773 km (0.039 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 928.4

Radius: 11.8

Gravity: 6.67 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 1.94 AU - 2.12 AU

Year: 1867 Days

Day: 12.8 Hours

Environment

Temp: -184 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 47,673,892 km

• M1: 146,756 km (0.115 R)
• M2: 615,446 km (0.099 R)
• M3: 1,127,370 km (0.047 R)
• M4: 1,522,607 km (0.114 R)
• M5: 2,439,642 km (0.103 R)
• M6: 2,990,162 km (0.048 R)
• M7: 4,105,115 km (0.098 R)
• M8: 4,736,418 km (0.091 R)
• M9: 5,865,882 km (0.086 R)
• M10: 6,323,203 km (0.05 R)
• M11: 6,749,557 km (0.117 R)
• M12: 7,138,511 km (0.086 R)
• M13: 7,542,276 km (0.061 R)
• M14: 8,396,031 km (0.047 R)
• M15: 8,945,055 km (0.108 R)
• M16: 9,380,983 km (0.112 R)
• M17: 11,619,416 km (0.118 R)
• M18: 14,602,547 km (0.066 R)
• M19: 16,569,161 km (0.101 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 681.6

Radius: 7.8

Gravity: 11.2 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 4.77 AU - 7.61 AU

Year: 9944 Days

Day: 15.6 Hours

Environment

Temp: -213 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 47,673,892 km

• M1: 97,239 km (0.112 R)
• M2: 356,342 km (0.066 R)
• M3: 754,721 km (0.087 R)
• M4: 1,198,429 km (0.083 R)
• M5: 1,656,048 km (0.071 R)
• M6: 1,901,688 km (0.065 R)
• M7: 2,468,066 km (0.11 R)
• M8: 4,067,417 km (0.114 R)
• M9: 4,667,753 km (0.111 R)
• M10: 5,163,819 km (0.078 R)
• M11: 6,748,210 km (0.115 R)
• M12: 8,186,594 km (0.031 R)
• M13: 8,542,038 km (0.071 R)
• M14: 9,379,786 km (0.11 R)
• M15: 9,719,972 km (0.046 R)
• M16: 12,394,483 km (0.109 R)
• M17: 15,189,121 km (0.053 R)
• M18: 18,377,949 km (0.048 R)
• M19: 19,454,605 km (0.043 R)
• M20: 21,732,980 km (0.118 R)
• M21: 22,501,465 km (0.088 R)
• M22: 24,915,974 km (0.118 R)
• M23: 28,195,459 km (0.075 R)
• M24: 30,042,992 km (0.118 R)
• M25: 35,128,572 km (0.042 R)
• M26: 40,503,025 km (0.118 R)
• M27: 44,466,022 km (0.075 R)
• M28: 45,150,732 km (0.078 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 508 - 17,100 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit