🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.78

Radius: 1.26

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 0.5 AU - 0.64 AU

Year: 274 Days

Day: 43.3 Hours

Environment

Temp: -117 °C

Axial Tilt: 48.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.98

Radius: 0.99

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 0.65 AU - 0.65 AU

Year: 333 Days

Day: 13.7 Hours

Environment

Temp: -139 °C

Axial Tilt: 33.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 40,971,429 km

• M1: 23,038 km (0.089 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 386.3

Radius: 12.5

Gravity: 2.47 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 0.85 AU - 0.93 AU

Year: 534 Days

Day: 7.8 Hours

Environment

Temp: -154 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 40,971,429 km

• M1: 155,731 km (0.11 R)
• M2: 1,129,614 km (0.112 R)
• M3: 1,540,110 km (0.085 R)
• M4: 1,964,519 km (0.079 R)
• M5: 2,532,991 km (0.093 R)
• M6: 3,379,565 km (0.065 R)
• M7: 4,392,642 km (0.119 R)
• M8: 4,895,441 km (0.106 R)
• M9: 5,420,529 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 214

Radius: 12

Gravity: 1.49 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 1.24 AU - 1.68 AU

Year: 1122 Days

Day: 10.4 Hours

Environment

Temp: -187 °C

Axial Tilt: 49.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 40,971,429 km

• M1: 149,299 km (0.077 R)
• M2: 546,631 km (0.106 R)
• M3: 984,803 km (0.118 R)
• M4: 2,252,196 km (0.063 R)
• M5: 2,758,585 km (0.115 R)
• M6: 3,277,540 km (0.096 R)
• M7: 3,654,676 km (0.101 R)
• M8: 4,119,327 km (0.113 R)
• M9: 4,719,214 km (0.08 R)
• M10: 5,848,529 km (0.108 R)
• M11: 6,347,737 km (0.041 R)
• M12: 7,344,358 km (0.118 R)

Planet 5 - Ice Giant

Semi-Major Axis: 8.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 169.9

Radius: 3.1

Gravity: 17.68 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 7.3 AU - 9.78 AU

Year: 15868 Days

Day: 16.2 Hours

Environment

Temp: -235 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 40,971,429 km

• M1: 59,540 km (0.1 R)
• M2: 314,904 km (0.12 R)
• M3: 611,556 km (0.116 R)
• M4: 749,785 km (0.085 R)
• M5: 1,078,750 km (0.115 R)
• M6: 1,633,160 km (0.11 R)
• M7: 1,748,799 km (0.073 R)
• M8: 1,869,824 km (0.104 R)
• M9: 3,669,935 km (0.074 R)
• M10: 4,022,836 km (0.094 R)
• M11: 4,288,373 km (0.106 R)
• M12: 4,973,232 km (0.064 R)
• M13: 5,860,646 km (0.113 R)
• M14: 7,539,583 km (0.035 R)
• M15: 7,699,054 km (0.077 R)
• M16: 8,107,905 km (0.114 R)
• M17: 9,513,527 km (0.053 R)
• M18: 9,699,926 km (0.097 R)
• M19: 9,841,296 km (0.097 R)
• M20: 10,568,940 km (0.102 R)
• M21: 11,753,157 km (0.07 R)
• M22: 15,701,793 km (0.118 R)
• M23: 16,491,370 km (0.044 R)
• M24: 17,238,163 km (0.072 R)
• M25: 18,364,036 km (0.087 R)
• M26: 24,473,314 km (0.085 R)
• M27: 26,622,886 km (0.112 R)
• M28: 29,089,904 km (0.119 R)
• M29: 33,389,796 km (0.093 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 290 - 11,760 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit