🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.7 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.8

Radius: 1.27

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 0.58 AU - 0.82 AU

Year: 224 Days

Day: 29.2 Hours

Environment

Temp: 137 °C

Axial Tilt: 3.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.63

Radius: 1.22

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 1.19 AU - 1.61 AU

Year: 634 Days

Day: 43 Hours

Environment

Temp: -53 °C

Axial Tilt: 43.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.46

Radius: 1.82

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 1.72 AU - 2 AU

Year: 971 Days

Day: 26.8 Hours

Environment

Temp: -82 °C

Axial Tilt: 22 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.32

Radius: 1.12

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 2.7 AU - 4.4 AU

Year: 2561 Days

Day: 13.4 Hours

Environment

Temp: -119 °C

Axial Tilt: 93.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 79,144,344 km

• M1: 69,413 km (0.119 R)
• M2: 144,661 km (0.05 R)

Planet 5 - Terrestrial

Semi-Major Axis: 4 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.25

Radius: 1.78

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 3.9 AU - 4.1 AU

Year: 3063 Days

Day: 23.6 Hours

Environment

Temp: -134 °C

Axial Tilt: 43.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 79,144,344 km

• M1: 194,477 km (0.071 R)

Planet 6 - Ice Giant

Semi-Major Axis: 16.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 442.8

Radius: 7.6

Gravity: 7.67 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 15.53 AU - 18.09 AU

Year: 26389 Days

Day: 23.7 Hours

Environment

Temp: -202 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 79,144,344 km

• M1: 94,546 km (0.104 R)
• M2: 350,807 km (0.099 R)
• M3: 708,196 km (0.086 R)
• M4: 1,031,477 km (0.089 R)
• M5: 1,667,867 km (0.082 R)
• M6: 2,103,346 km (0.077 R)
• M7: 2,909,529 km (0.1 R)
• M8: 3,256,596 km (0.119 R)
• M9: 3,512,857 km (0.04 R)
• M10: 4,570,514 km (0.103 R)
• M11: 6,511,995 km (0.074 R)
• M12: 10,518,974 km (0.085 R)
• M13: 10,829,240 km (0.071 R)
• M14: 11,403,098 km (0.102 R)
• M15: 14,966,369 km (0.091 R)
• M16: 22,004,650 km (0.107 R)
• M17: 22,615,009 km (0.096 R)
• M18: 23,551,791 km (0.116 R)
• M19: 25,614,147 km (0.067 R)
• M20: 25,950,294 km (0.115 R)
• M21: 28,868,200 km (0.082 R)
• M22: 30,972,743 km (0.116 R)
• M23: 33,443,651 km (0.118 R)
• M24: 37,463,645 km (0.068 R)
• M25: 41,794,354 km (0.05 R)
• M26: 48,984,476 km (0.061 R)
• M27: 50,726,244 km (0.117 R)
• M28: 55,447,404 km (0.097 R)
• M29: 62,253,808 km (0.116 R)
• M30: 67,656,086 km (0.064 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 287 - 14,135 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit