🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.76 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.5

Radius: 0.76

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 0.74 AU - 0.78 AU

Year: 250 Days

Day: 17.3 Hours

Environment

Temp: 120 °C

Axial Tilt: 35 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 33,340,079 km

• M1: 146,456 km (0.061 R)
• M2: 319,541 km (0.075 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.87 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.02

Radius: 1.32

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.7 AU - 1.04 AU

Year: 306 Days

Day: 30.5 Hours

Environment

Temp: 21 °C

Axial Tilt: 22.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 33,340,079 km

• M1: 393,442 km (0.105 R)

Asteroid Belt

Center: 5.82 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 10.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 413.4

Radius: 13.2

Gravity: 2.37 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 10.03 AU - 11.49 AU

Year: 13297 Days

Day: 15 Hours

Environment

Temp: -193 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 33,340,079 km

• M1: 164,109 km (0.071 R)
• M2: 908,807 km (0.045 R)
• M3: 1,576,612 km (0.113 R)
• M4: 2,099,756 km (0.038 R)
• M5: 2,717,894 km (0.109 R)
• M6: 3,832,847 km (0.101 R)
• M7: 4,436,923 km (0.08 R)
• M8: 4,978,019 km (0.084 R)
• M9: 8,241,795 km (0.066 R)
• M10: 9,688,856 km (0.111 R)
• M11: 10,761,323 km (0.048 R)
• M12: 11,353,880 km (0.111 R)
• M13: 12,139,568 km (0.101 R)
• M14: 12,722,551 km (0.083 R)
• M15: 13,945,065 km (0.109 R)
• M16: 14,978,188 km (0.111 R)
• M17: 15,513,598 km (0.103 R)
• M18: 16,340,575 km (0.086 R)
• M19: 17,196,874 km (0.041 R)
• M20: 17,858,545 km (0.064 R)
• M21: 18,998,930 km (0.102 R)
• M22: 20,676,221 km (0.097 R)
• M23: 24,050,251 km (0.058 R)
• M24: 26,883,485 km (0.102 R)
• M25: 31,105,885 km (0.104 R)
• M26: 31,540,168 km (0.054 R)
• M27: 32,532,002 km (0.048 R)
• M28: 33,092,096 km (0.103 R)
• M29: 34,462,263 km (0.084 R)
• M30: 36,108,288 km (0.088 R)
• M31: 39,429,960 km (0.063 R)
• M32: 47,530,535 km (0.088 R)

Planet 4 - Ice Giant

Semi-Major Axis: 15.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 41.1

Radius: 3.2

Gravity: 4.01 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 13.53 AU - 18.09 AU

Year: 23682 Days

Day: 20.6 Hours

Environment

Temp: -198 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 33,340,079 km

• M1: 42,486 km (0.097 R)
• M2: 176,226 km (0.106 R)
• M3: 282,890 km (0.057 R)
• M4: 770,878 km (0.088 R)
• M5: 984,653 km (0.115 R)
• M6: 1,781,860 km (0.112 R)
• M7: 2,045,751 km (0.099 R)
• M8: 3,676,667 km (0.064 R)
• M9: 4,457,119 km (0.115 R)
• M10: 7,747,973 km (0.113 R)
• M11: 9,877,050 km (0.105 R)
• M12: 11,510,808 km (0.098 R)
• M13: 12,262,986 km (0.066 R)
• M14: 13,047,477 km (0.088 R)
• M15: 14,600,154 km (0.117 R)
• M16: 16,520,542 km (0.093 R)
• M17: 20,635,081 km (0.087 R)
• M18: 21,073,254 km (0.107 R)
• M19: 27,085,143 km (0.092 R)
• M20: 27,786,907 km (0.075 R)
• M21: 32,155,614 km (0.096 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: 208 - 17,728 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit