🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.86 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.27

Radius: 0.59

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 1.62 AU - 1.82 AU

Year: 999 Days

Day: 24.8 Hours

Environment

Temp: -109 °C

Axial Tilt: 10.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 2.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 559.1

Radius: 12.2

Gravity: 3.76 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 2.4 AU - 3.34 AU

Year: 2154 Days

Day: 13.4 Hours

Environment

Temp: -138 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 57,817,534 km

• M1: 154,983 km (0.097 R)
• M2: 556,803 km (0.105 R)
• M3: 1,187,358 km (0.062 R)
• M4: 1,585,139 km (0.051 R)
• M5: 2,015,831 km (0.045 R)
• M6: 2,538,676 km (0.043 R)
• M7: 2,921,646 km (0.111 R)
• M8: 4,006,680 km (0.065 R)
• M9: 7,317,131 km (0.094 R)
• M10: 8,012,013 km (0.079 R)
• M11: 10,046,544 km (0.111 R)
• M12: 10,505,810 km (0.077 R)
• M13: 13,393,348 km (0.107 R)
• M14: 13,950,450 km (0.049 R)
• M15: 14,792,237 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 4.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 47.5

Radius: 12.5

Gravity: 0.3 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 4.37 AU - 5.03 AU

Year: 4513 Days

Day: 13.3 Hours

Environment

Temp: -170 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 57,817,534 km

• M1: 157,227 km (0.073 R)
• M2: 628,909 km (0.091 R)
• M3: 2,088,536 km (0.077 R)
• M4: 2,587,744 km (0.077 R)
• M5: 3,338,426 km (0.091 R)
• M6: 4,126,956 km (0.071 R)
• M7: 9,529,235 km (0.104 R)
• M8: 11,247,067 km (0.07 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 112

Radius: 11.5

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 5.69 AU - 5.99 AU

Year: 6251 Days

Day: 11.5 Hours

Environment

Temp: -190 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 57,817,534 km

• M1: 143,016 km (0.067 R)
• M2: 715,078 km (0.077 R)
• M3: 1,137,991 km (0.07 R)
• M4: 7,153,471 km (0.099 R)
• M5: 9,990,744 km (0.094 R)
• M6: 12,156,024 km (0.063 R)
• M7: 14,428,116 km (0.078 R)
• M8: 17,555,011 km (0.028 R)

Planet 5 - Ice Giant

Semi-Major Axis: 11.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 361.8

Radius: 5.4

Gravity: 12.41 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 9.27 AU - 14.57 AU

Year: 18228 Days

Day: 22.9 Hours

Environment

Temp: -205 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 57,817,534 km

• M1: 67,169 km (0.105 R)
• M2: 254,316 km (0.114 R)
• M3: 457,021 km (0.119 R)
• M4: 926,908 km (0.12 R)
• M5: 1,242,111 km (0.102 R)
• M6: 1,504,955 km (0.063 R)
• M7: 1,770,940 km (0.085 R)
• M8: 4,788,029 km (0.076 R)
• M9: 7,372,931 km (0.111 R)
• M10: 7,863,762 km (0.072 R)
• M11: 9,833,517 km (0.045 R)
• M12: 11,218,793 km (0.105 R)
• M13: 17,436,380 km (0.079 R)
• M14: 25,820,592 km (0.108 R)
• M15: 27,578,218 km (0.043 R)
• M16: 36,162,592 km (0.115 R)
• M17: 37,834,349 km (0.118 R)
• M18: 46,669,150 km (0.061 R)
• M19: 51,320,896 km (0.057 R)
• M20: 54,421,312 km (0.095 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 288 - 12,571 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit