🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.85 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.09

Radius: 1.34

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 0.79 AU - 0.91 AU

Year: 298 Days

Day: 26.5 Hours

Environment

Temp: 32 °C

Axial Tilt: 162.7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.94

Radius: 1.73

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 1.12 AU - 1.4 AU

Year: 539 Days

Day: 41.5 Hours

Environment

Temp: -26 °C

Axial Tilt: 0.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 77,886,831 km

• M1: 187,446 km (0.104 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.09

Radius: 1.04

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 1.2 AU - 1.86 AU

Year: 721 Days

Day: 34 Hours

Environment

Temp: -50 °C

Axial Tilt: 12.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 77,886,831 km

• M1: 767,287 km (0.038 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.78

Radius: 1.87

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 1.76 AU - 1.86 AU

Year: 927 Days

Day: 45.5 Hours

Environment

Temp: -74 °C

Axial Tilt: 10.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 77,886,831 km

• M1: 44,281 km (0.072 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.76

Radius: 1.87

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 1.53 AU - 2.49 AU

Year: 1085 Days

Day: 15.6 Hours

Environment

Temp: -80 °C

Axial Tilt: 140.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 3.1 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.63

Radius: 0.83

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 2.97 AU - 3.23 AU

Year: 2078 Days

Day: 19.4 Hours

Environment

Temp: -125 °C

Axial Tilt: 46 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Ice Giant

Semi-Major Axis: 16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 494.8

Radius: 5.9

Gravity: 14.21 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 15.55 AU - 16.45 AU

Year: 24371 Days

Day: 15.3 Hours

Environment

Temp: -198 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 77,886,831 km

• M1: 96,790 km (0.031 R)
• M2: 341,233 km (0.104 R)
• M3: 705,204 km (0.094 R)
• M4: 1,505,104 km (0.058 R)
• M5: 3,673,675 km (0.116 R)
• M6: 5,128,514 km (0.09 R)
• M7: 7,023,321 km (0.104 R)
• M8: 9,800,007 km (0.039 R)
• M9: 10,640,149 km (0.057 R)
• M10: 12,949,042 km (0.043 R)
• M11: 16,713,523 km (0.086 R)
• M12: 27,923,639 km (0.095 R)
• M13: 33,428,991 km (0.109 R)
• M14: 40,063,507 km (0.059 R)
• M15: 40,514,395 km (0.089 R)
• M16: 50,435,426 km (0.044 R)
• M17: 52,560,613 km (0.112 R)
• M18: 54,376,582 km (0.087 R)
• M19: 59,683,267 km (0.073 R)
• M20: 76,725,457 km (0.099 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: 263 - 18,364 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit