🌌 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: 0.99 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.43

Radius: 1.15

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 0.84 AU - 1.14 AU

Year: 379 Days

Day: 25.2 Hours

Environment

Temp: 7 °C

Axial Tilt: 10.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 1.05 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.47

Radius: 1.44

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 0.97 AU - 1.13 AU

Year: 414 Days

Day: 40.8 Hours

Environment

Temp: -4 °C

Axial Tilt: 19.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Asteroid Belt

Center: 4.5 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 7.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 154.3

Radius: 13.4

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 6.52 AU - 9.36 AU

Year: 8614 Days

Day: 12.8 Hours

Environment

Temp: -170 °C

Axial Tilt: 42 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 24,557,478 km

• M1: 166,802 km (0.096 R)
• M2: 742,604 km (0.116 R)
• M3: 1,431,951 km (0.078 R)
• M4: 1,974,841 km (0.104 R)
• M5: 2,753,798 km (0.031 R)
• M6: 3,310,451 km (0.07 R)
• M7: 4,603,575 km (0.09 R)
• M8: 5,206,754 km (0.098 R)
• M9: 6,034,479 km (0.109 R)
• M10: 6,727,117 km (0.078 R)
• M11: 7,573,243 km (0.099 R)
• M12: 8,235,662 km (0.059 R)
• M13: 9,281,949 km (0.101 R)
• M14: 10,457,340 km (0.119 R)
• M15: 11,548,058 km (0.116 R)
• M16: 12,332,250 km (0.065 R)
• M17: 13,700,771 km (0.033 R)
• M18: 15,060,317 km (0.079 R)
• M19: 17,622,928 km (0.111 R)
• M20: 23,306,750 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 9.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 75.3

Radius: 9.3

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 8.06 AU - 10.7 AU

Year: 11060 Days

Day: 6.1 Hours

Environment

Temp: -185 °C

Axial Tilt: 45.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 24,557,478 km

• M1: 115,789 km (0.117 R)
• M2: 413,040 km (0.116 R)
• M3: 857,944 km (0.044 R)
• M4: 1,218,475 km (0.087 R)
• M5: 1,775,727 km (0.069 R)
• M6: 2,818,723 km (0.119 R)
• M7: 3,415,469 km (0.106 R)
• M8: 4,958,870 km (0.09 R)
• M9: 6,025,802 km (0.088 R)
• M10: 7,015,542 km (0.119 R)
• M11: 7,800,931 km (0.087 R)
• M12: 8,716,619 km (0.037 R)
• M13: 9,200,568 km (0.064 R)
• M14: 10,263,012 km (0.117 R)
• M15: 12,489,627 km (0.104 R)
• M16: 13,790,231 km (0.068 R)
• M17: 14,294,226 km (0.094 R)
• M18: 15,232,205 km (0.061 R)
• M19: 19,272,544 km (0.062 R)
• M20: 19,966,529 km (0.042 R)
• M21: 20,416,669 km (0.045 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 392 - 11,010 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit