🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.77

Radius: 0.9

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.47 AU - 0.77 AU

Year: 315 Days

Day: 42 Hours

Environment

Temp: -121 °C

Axial Tilt: 19.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 229.2

Radius: 9.4

Gravity: 2.59 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 0.65 AU - 1.03 AU

Year: 497 Days

Day: 14.8 Hours

Environment

Temp: -143 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 39,819,729 km

• M1: 117,135 km (0.12 R)
• M2: 414,536 km (0.093 R)
• M3: 980,764 km (0.026 R)
• M4: 1,276,369 km (0.118 R)
• M5: 1,691,802 km (0.051 R)
• M6: 2,078,662 km (0.04 R)
• M7: 2,524,165 km (0.056 R)
• M8: 2,874,972 km (0.108 R)
• M9: 3,247,919 km (0.099 R)
• M10: 3,803,077 km (0.11 R)
• M11: 4,241,100 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 231.3

Radius: 8.5

Gravity: 3.2 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 1.63 AU - 2.31 AU

Year: 1785 Days

Day: 5.8 Hours

Environment

Temp: -192 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 39,819,729 km

• M1: 105,766 km (0.116 R)
• M2: 423,960 km (0.096 R)
• M3: 921,373 km (0.12 R)
• M4: 1,207,404 km (0.092 R)
• M5: 1,536,819 km (0.094 R)
• M6: 1,945,670 km (0.104 R)
• M7: 2,279,423 km (0.075 R)
• M8: 2,639,206 km (0.044 R)
• M9: 2,943,338 km (0.119 R)
• M10: 4,098,383 km (0.102 R)
• M11: 4,614,795 km (0.12 R)
• M12: 4,888,858 km (0.116 R)
• M13: 5,390,011 km (0.107 R)
• M14: 5,715,087 km (0.072 R)
• M15: 7,172,919 km (0.12 R)
• M16: 8,614,893 km (0.046 R)

Planet 4 - Ice Giant

Semi-Major Axis: 7.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 222.4

Radius: 4.2

Gravity: 12.61 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 6.66 AU - 8.36 AU

Year: 13288 Days

Day: 22.9 Hours

Environment

Temp: -226 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 39,819,729 km

• M1: 52,210 km (0.059 R)
• M2: 1,042,398 km (0.083 R)
• M3: 1,786,647 km (0.107 R)
• M4: 2,540,471 km (0.051 R)
• M5: 3,486,229 km (0.049 R)
• M6: 5,053,117 km (0.105 R)
• M7: 7,494,704 km (0.053 R)
• M8: 11,589,497 km (0.094 R)
• M9: 12,391,640 km (0.032 R)
• M10: 14,285,400 km (0.07 R)
• M11: 19,510,554 km (0.076 R)
• M12: 21,898,585 km (0.074 R)
• M13: 23,121,099 km (0.081 R)
• M14: 23,454,702 km (0.088 R)
• M15: 24,560,679 km (0.115 R)
• M16: 25,790,374 km (0.052 R)
• M17: 30,416,837 km (0.091 R)
• M18: 32,767,170 km (0.062 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 209 - 16,576 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit