🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.81

Radius: 1.71

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.4 AU - 0.64 AU

Year: 131 Days

Day: 39.5 Hours

Environment

Temp: 230 °C

Axial Tilt: 32.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.77

Radius: 1.87

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 0.48 AU - 0.58 AU

Year: 135 Days

Day: 19.2 Hours

Environment

Temp: 246 °C

Axial Tilt: 48.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.79 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.49

Radius: 1.17

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 0.79 AU - 0.79 AU

Year: 246 Days

Day: 14.6 Hours

Environment

Temp: 123 °C

Axial Tilt: 3.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 50,084,540 km

• M1: 128,953 km (0.084 R)
• M2: 384,018 km (0.116 R)

Asteroid Belt

Center: 6.81 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 12.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 38.1

Radius: 10.8

Gravity: 0.33 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 11.85 AU - 13.79 AU

Year: 16059 Days

Day: 13.9 Hours

Environment

Temp: -171 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 50,084,540 km

• M1: 138,079 km (0.119 R)
• M2: 474,973 km (0.107 R)
• M3: 967,449 km (0.071 R)
• M4: 1,347,877 km (0.114 R)
• M5: 2,981,486 km (0.047 R)
• M6: 4,400,721 km (0.118 R)
• M7: 5,364,879 km (0.102 R)
• M8: 6,769,004 km (0.076 R)
• M9: 19,378,310 km (0.07 R)

Planet 5 - Ice Giant

Semi-Major Axis: 15.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 187.3

Radius: 3.1

Gravity: 19.49 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 13.74 AU - 16.36 AU

Year: 20426 Days

Day: 21.2 Hours

Environment

Temp: -181 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 50,084,540 km

• M1: 38,596 km (0.09 R)
• M2: 488,886 km (0.059 R)
• M3: 671,545 km (0.089 R)
• M4: 783,594 km (0.116 R)
• M5: 938,577 km (0.063 R)
• M6: 1,090,718 km (0.103 R)
• M7: 2,492,151 km (0.058 R)
• M8: 3,693,571 km (0.087 R)
• M9: 5,234,429 km (0.087 R)
• M10: 8,095,489 km (0.087 R)
• M11: 9,258,014 km (0.057 R)
• M12: 10,006,602 km (0.087 R)
• M13: 11,850,844 km (0.096 R)
• M14: 14,296,171 km (0.088 R)
• M15: 15,636,119 km (0.084 R)
• M16: 18,874,165 km (0.096 R)
• M17: 34,259,857 km (0.079 R)
• M18: 36,037,828 km (0.087 R)
• M19: 37,627,604 km (0.045 R)
• M20: 40,815,086 km (0.052 R)
• M21: 41,341,222 km (0.032 R)

Kuiper Belt

Range: 31.4 - 60.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 419 - 20,367 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit