🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.96

Radius: 0.98

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 0.85 AU - 1.16 AU

Year: 358 Days

Day: 39.1 Hours

Environment

Temp: 152 °C

Axial Tilt: 4.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.39 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.54

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 1.14 AU - 1.64 AU

Year: 587 Days

Day: 27.4 Hours

Environment

Temp: -17 °C

Axial Tilt: 38.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.71

Radius: 1.24

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 1.53 AU - 1.75 AU

Year: 752 Days

Day: 42.1 Hours

Environment

Temp: -33 °C

Axial Tilt: 32.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.22 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.22

Radius: 1.08

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 2.11 AU - 2.33 AU

Year: 1185 Days

Day: 26.6 Hours

Environment

Temp: -72 °C

Axial Tilt: 12.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.05 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.92

Radius: 1.73

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 2.85 AU - 3.25 AU

Year: 1908 Days

Day: 14.4 Hours

Environment

Temp: -100 °C

Axial Tilt: 153.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.7 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.88

Radius: 1.29

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 3.99 AU - 5.41 AU

Year: 3649 Days

Day: 27.7 Hours

Environment

Temp: -134 °C

Axial Tilt: 18.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 8.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 417.6

Radius: 8.3

Gravity: 6.06 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 7.24 AU - 9.46 AU

Year: 8642 Days

Day: 8.3 Hours

Environment

Temp: -164 °C

Axial Tilt: 50 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 36,874,456 km

• M1: 103,223 km (0.115 R)
• M2: 397,332 km (0.103 R)
• M3: 884,722 km (0.114 R)
• M4: 1,319,453 km (0.113 R)
• M5: 1,790,387 km (0.078 R)
• M6: 2,352,277 km (0.105 R)
• M7: 3,006,468 km (0.043 R)
• M8: 3,454,065 km (0.112 R)
• M9: 4,094,045 km (0.109 R)
• M10: 4,895,441 km (0.113 R)
• M11: 5,765,652 km (0.104 R)
• M12: 7,427,235 km (0.103 R)
• M13: 9,924,472 km (0.097 R)
• M14: 10,389,123 km (0.102 R)
• M15: 10,771,196 km (0.052 R)
• M16: 11,262,027 km (0.084 R)
• M17: 12,026,023 km (0.116 R)
• M18: 13,600,541 km (0.088 R)
• M19: 17,021,695 km (0.105 R)
• M20: 17,352,455 km (0.104 R)
• M21: 19,000,725 km (0.097 R)
• M22: 19,790,003 km (0.099 R)
• M23: 20,675,922 km (0.08 R)
• M24: 23,737,442 km (0.114 R)
• M25: 25,764,493 km (0.048 R)
• M26: 31,332,227 km (0.068 R)
• M27: 32,433,118 km (0.116 R)

Kuiper Belt

Range: 30.6 - 50.6 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 239 - 10,936 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit