🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.56 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.12 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.91

Radius: 1.73

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 1.01 AU - 1.23 AU

Year: 413 Days

Day: 14.1 Hours

Environment

Temp: 140 °C

Axial Tilt: 3.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 2.69 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.08

Radius: 1.34

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 2.31 AU - 3.07 AU

Year: 1536 Days

Day: 29.1 Hours

Environment

Temp: -80 °C

Axial Tilt: 38.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 3.06 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.37

Radius: 1.8

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 2.58 AU - 3.54 AU

Year: 1864 Days

Day: 38.9 Hours

Environment

Temp: -81 °C

Axial Tilt: 41.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 29,452,812 km

• M1: 143,764 km (0.118 R)
• M2: 2,239,331 km (0.066 R)

Planet 4 - Gas Giant

Semi-Major Axis: 6.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 35.5

Radius: 14.8

Gravity: 0.16 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 4.65 AU - 7.59 AU

Year: 5273 Days

Day: 5.1 Hours

Environment

Temp: -139 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 29,452,812 km

• M1: 184,155 km (0.106 R)
• M2: 886,218 km (0.113 R)
• M3: 1,391,111 km (0.117 R)
• M4: 2,146,430 km (0.117 R)
• M5: 2,789,701 km (0.09 R)
• M6: 4,380,076 km (0.077 R)
• M7: 5,506,847 km (0.112 R)
• M8: 6,217,138 km (0.112 R)
• M9: 6,795,334 km (0.109 R)
• M10: 7,665,395 km (0.11 R)
• M11: 8,140,967 km (0.082 R)
• M12: 8,949,094 km (0.119 R)
• M13: 11,560,475 km (0.039 R)

Planet 5 - Ice Giant

Semi-Major Axis: 15.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 36.3

Radius: 5.3

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 13.22 AU - 17.46 AU

Year: 20923 Days

Day: 22.4 Hours

Environment

Temp: -194 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 29,452,812 km

• M1: 167,101 km (0.107 R)
• M2: 452,234 km (0.105 R)
• M3: 984,354 km (0.033 R)
• M4: 2,944,984 km (0.11 R)
• M5: 3,630,142 km (0.112 R)
• M6: 10,583,750 km (0.062 R)
• M7: 11,450,969 km (0.119 R)
• M8: 12,463,447 km (0.076 R)
• M9: 15,225,174 km (0.084 R)
• M10: 19,956,057 km (0.083 R)
• M11: 23,399,800 km (0.077 R)
• M12: 24,474,212 km (0.078 R)
• M13: 27,219,781 km (0.103 R)

Kuiper Belt

Range: 31.5 - 48.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 393 - 20,048 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit