🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.6

Radius: 0.82

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 0.5 AU - 0.78 AU

Year: 190 Days

Day: 22.4 Hours

Environment

Temp: 142 °C

Axial Tilt: 27.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 44,898,441 km

• M1: 150,795 km (0.047 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.99 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.54

Radius: 1.66

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 0.83 AU - 1.15 AU

Year: 365 Days

Day: 20.5 Hours

Environment

Temp: 20 °C

Axial Tilt: 4.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 44,898,441 km

• M1: 300,243 km (0.112 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.42

Radius: 1.81

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.8 AU - 1.2 AU

Year: 371 Days

Day: 21.5 Hours

Environment

Temp: 29 °C

Axial Tilt: 43.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.6

Radius: 1.21

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 1.43 AU - 1.53 AU

Year: 668 Days

Day: 28.7 Hours

Environment

Temp: -49 °C

Axial Tilt: 21.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 44,898,441 km

• M1: 37,699 km (0.079 R)
• M2: 112,647 km (0.088 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.79 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.73

Radius: 1.69

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 2.11 AU - 3.47 AU

Year: 1728 Days

Day: 22.9 Hours

Environment

Temp: -105 °C

Axial Tilt: 22 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 10.79 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Ice Giant

Semi-Major Axis: 18.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 61.8

Radius: 7.3

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 15.17 AU - 22.39 AU

Year: 30182 Days

Day: 19.2 Hours

Environment

Temp: -199 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 44,898,441 km

• M1: 90,956 km (0.113 R)
• M2: 322,832 km (0.084 R)
• M3: 1,172,399 km (0.065 R)
• M4: 1,836,463 km (0.081 R)
• M5: 2,434,855 km (0.062 R)
• M6: 3,293,397 km (0.082 R)
• M7: 6,952,262 km (0.088 R)
• M8: 7,545,717 km (0.1 R)
• M9: 8,345,317 km (0.088 R)
• M10: 8,969,589 km (0.099 R)
• M11: 11,672,374 km (0.093 R)
• M12: 13,627,768 km (0.065 R)
• M13: 19,069,689 km (0.038 R)
• M14: 19,994,055 km (0.039 R)
• M15: 23,465,174 km (0.117 R)
• M16: 29,393,738 km (0.114 R)
• M17: 30,005,593 km (0.05 R)
• M18: 33,413,283 km (0.108 R)
• M19: 34,303,689 km (0.119 R)
• M20: 41,239,047 km (0.091 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 447 - 12,023 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit