🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.8

Radius: 1.51

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 0.58 AU - 0.6 AU

Year: 167 Days

Day: 31.4 Hours

Environment

Temp: 175 °C

Axial Tilt: 4.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.82 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.38

Radius: 1.63

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 0.63 AU - 1.01 AU

Year: 274 Days

Day: 14.3 Hours

Environment

Temp: 149 °C

Axial Tilt: 8.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.16

Radius: 1.58

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 1.49 AU - 2.09 AU

Year: 884 Days

Day: 38.1 Hours

Environment

Temp: -67 °C

Axial Tilt: 35.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 76,950,521 km

• M1: 50,115 km (0.039 R)
• M2: 901,926 km (0.028 R)

Planet 4 - Terrestrial

Semi-Major Axis: 3.81 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.35

Radius: 1.41

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 3.19 AU - 4.43 AU

Year: 2744 Days

Day: 43.3 Hours

Environment

Temp: -128 °C

Axial Tilt: 32.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 76,950,521 km

• M1: 881,431 km (0.103 R)

Asteroid Belt

Center: 11.56 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Ice Giant

Semi-Major Axis: 19.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 289.6

Radius: 4

Gravity: 18.1 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 15.79 AU - 22.81 AU

Year: 31283 Days

Day: 19.3 Hours

Environment

Temp: -204 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 76,950,521 km

• M1: 50,414 km (0.064 R)
• M2: 256,261 km (0.067 R)
• M3: 664,963 km (0.11 R)
• M4: 1,022,501 km (0.097 R)
• M5: 2,546,006 km (0.11 R)
• M6: 5,196,282 km (0.095 R)
• M7: 5,585,984 km (0.097 R)
• M8: 6,826,300 km (0.074 R)
• M9: 11,628,542 km (0.044 R)
• M10: 12,226,185 km (0.066 R)
• M11: 20,398,418 km (0.098 R)
• M12: 30,212,038 km (0.111 R)
• M13: 32,622,209 km (0.109 R)
• M14: 37,677,570 km (0.054 R)
• M15: 38,981,615 km (0.107 R)
• M16: 57,049,896 km (0.118 R)
• M17: 73,990,209 km (0.118 R)
• M18: 74,215,204 km (0.057 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 499 - 19,340 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit