🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.81 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.61 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.56

Radius: 1.19

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 1.31 AU - 1.91 AU

Year: 711 Days

Day: 38.6 Hours

Environment

Temp: -4 °C

Axial Tilt: 9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.73

Radius: 1.25

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 1.31 AU - 2.09 AU

Year: 772 Days

Day: 32.5 Hours

Environment

Temp: -25 °C

Axial Tilt: 6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 68,115,285 km

• M1: 257,907 km (0.104 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.16 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.11

Radius: 1.35

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 1.9 AU - 2.42 AU

Year: 1106 Days

Day: 27.2 Hours

Environment

Temp: -62 °C

Axial Tilt: 10.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 5.21 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.66

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 3.98 AU - 6.44 AU

Year: 4141 Days

Day: 39.5 Hours

Environment

Temp: -132 °C

Axial Tilt: 28.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 68,115,285 km

• M1: 3,083,212 km (0.099 R)

Asteroid Belt

Center: 11.99 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Ice Giant

Semi-Major Axis: 18.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 245.1

Radius: 3.7

Gravity: 17.9 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 15.69 AU - 21.85 AU

Year: 28320 Days

Day: 15.4 Hours

Environment

Temp: -184 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 68,115,285 km

• M1: 46,226 km (0.045 R)
• M2: 266,733 km (0.101 R)
• M3: 429,944 km (0.115 R)
• M4: 998,865 km (0.095 R)
• M5: 3,930,534 km (0.03 R)
• M6: 4,209,385 km (0.073 R)
• M7: 5,161,575 km (0.115 R)
• M8: 7,023,321 km (0.115 R)
• M9: 9,727,901 km (0.097 R)
• M10: 11,619,865 km (0.107 R)
• M11: 13,327,076 km (0.074 R)
• M12: 13,813,867 km (0.096 R)
• M13: 23,393,816 km (0.064 R)
• M14: 31,364,690 km (0.047 R)
• M15: 38,826,631 km (0.097 R)
• M16: 50,000,096 km (0.077 R)
• M17: 51,341,092 km (0.05 R)
• M18: 51,850,024 km (0.094 R)
• M19: 58,406,898 km (0.084 R)
• M20: 58,591,352 km (0.082 R)
• M21: 65,494,995 km (0.111 R)

Kuiper Belt

Range: 31.5 - 60.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 187 - 16,734 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit