🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.61 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.21 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.6

Radius: 1.21

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 0.98 AU - 1.44 AU

Year: 472 Days

Day: 23.1 Hours

Environment

Temp: 32 °C

Axial Tilt: 1.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 1.39 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.16

Radius: 1.36

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 1.09 AU - 1.69 AU

Year: 581 Days

Day: 17.8 Hours

Environment

Temp: 7 °C

Axial Tilt: 14.7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (2)

Outer Limit: 52,221,667 km

• M1: 64,925 km (0.052 R)
• M2: 86,168 km (0.112 R)

Planet 3 - Terrestrial

Semi-Major Axis: 4.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.72

Radius: 1.24

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 3.92 AU - 5.38 AU

Year: 3557 Days

Day: 16.6 Hours

Environment

Temp: -126 °C

Axial Tilt: 12.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 52,221,667 km

• M1: 1,726,359 km (0.081 R)

Asteroid Belt

Center: 5.12 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 5.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 147.3

Radius: 13.3

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 4.78 AU - 6.4 AU

Year: 4689 Days

Day: 13.8 Hours

Environment

Temp: -132 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 52,221,667 km

• M1: 172,935 km (0.103 R)
• M2: 633,547 km (0.088 R)
• M3: 1,152,652 km (0.057 R)
• M4: 1,627,625 km (0.12 R)
• M5: 2,260,125 km (0.118 R)
• M6: 3,463,041 km (0.101 R)
• M7: 3,929,188 km (0.11 R)
• M8: 4,457,717 km (0.108 R)
• M9: 6,206,217 km (0.058 R)
• M10: 7,149,881 km (0.088 R)
• M11: 13,840,047 km (0.114 R)
• M12: 14,744,366 km (0.042 R)
• M13: 16,821,832 km (0.083 R)

Planet 5 - Ice Giant

Semi-Major Axis: 12.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 321.1

Radius: 3.2

Gravity: 31.36 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 11.56 AU - 14.42 AU

Year: 16609 Days

Day: 24.8 Hours

Environment

Temp: -181 °C

Axial Tilt: 46.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 52,221,667 km

• M1: 58,493 km (0.057 R)
• M2: 237,861 km (0.074 R)
• M3: 1,286,242 km (0.109 R)
• M4: 1,420,731 km (0.076 R)
• M5: 6,407,277 km (0.064 R)
• M6: 7,125,945 km (0.116 R)
• M7: 7,852,542 km (0.097 R)
• M8: 11,538,035 km (0.066 R)
• M9: 13,212,334 km (0.073 R)
• M10: 20,256,150 km (0.043 R)
• M11: 22,497,276 km (0.115 R)
• M12: 28,496,599 km (0.079 R)
• M13: 30,528,437 km (0.084 R)
• M14: 31,078,808 km (0.116 R)
• M15: 31,972,955 km (0.065 R)
• M16: 35,358,354 km (0.106 R)
• M17: 35,479,229 km (0.107 R)
• M18: 36,950,524 km (0.09 R)
• M19: 43,381,288 km (0.117 R)
• M20: 43,797,469 km (0.117 R)

Kuiper Belt

Range: 30.9 - 53.9 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 267 - 17,310 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit