🌌 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: 0.75 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.86

Radius: 1.72

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 0.66 AU - 0.84 AU

Year: 232 Days

Day: 40.1 Hours

Environment

Temp: 128 °C

Axial Tilt: 18.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 61,515,661 km

• M1: 615,894 km (0.108 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.16

Radius: 0.48

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 0.97 AU - 1.04 AU

Year: 356 Days

Day: 18.4 Hours

Environment

Temp: 111 °C

Axial Tilt: 5.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.51

Radius: 0.76

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 1.32 AU - 2.12 AU

Year: 804 Days

Day: 38.3 Hours

Environment

Temp: -39 °C

Axial Tilt: 86.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.42 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.24

Radius: 1.6

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 3.07 AU - 3.77 AU

Year: 2254 Days

Day: 18.3 Hours

Environment

Temp: -100 °C

Axial Tilt: 27.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 6.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 367

Radius: 13.2

Gravity: 2.11 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 5.33 AU - 7.17 AU

Year: 5569 Days

Day: 7.2 Hours

Environment

Temp: -139 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 61,515,661 km

• M1: 164,109 km (0.083 R)
• M2: 809,474 km (0.057 R)
• M3: 1,827,787 km (0.082 R)
• M4: 2,319,814 km (0.079 R)
• M5: 2,865,846 km (0.07 R)
• M6: 3,741,293 km (0.117 R)
• M7: 4,617,189 km (0.116 R)
• M8: 5,116,995 km (0.108 R)
• M9: 5,597,803 km (0.119 R)
• M10: 6,681,490 km (0.097 R)
• M11: 7,290,203 km (0.099 R)
• M12: 8,508,379 km (0.117 R)
• M13: 11,706,033 km (0.068 R)
• M14: 13,573,015 km (0.098 R)
• M15: 16,475,662 km (0.035 R)
• M16: 19,256,088 km (0.102 R)
• M17: 20,358,475 km (0.05 R)
• M18: 23,479,835 km (0.087 R)
• M19: 24,288,710 km (0.073 R)
• M20: 25,575,551 km (0.116 R)

Planet 6 - Ice Giant

Semi-Major Axis: 16.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 236.1

Radius: 6.5

Gravity: 5.59 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 15.02 AU - 18.78 AU

Year: 24764 Days

Day: 20.2 Hours

Environment

Temp: -197 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 61,515,661 km

• M1: 80,783 km (0.036 R)
• M2: 300,841 km (0.107 R)
• M3: 951,592 km (0.106 R)
• M4: 1,198,429 km (0.102 R)
• M5: 2,037,822 km (0.1 R)
• M6: 2,783,119 km (0.076 R)
• M7: 2,995,249 km (0.098 R)
• M8: 3,243,431 km (0.069 R)
• M9: 3,838,382 km (0.055 R)
• M10: 4,697,822 km (0.063 R)
• M11: 6,218,035 km (0.073 R)
• M12: 6,582,157 km (0.102 R)
• M13: 6,917,555 km (0.058 R)
• M14: 11,943,894 km (0.072 R)
• M15: 22,162,027 km (0.068 R)
• M16: 22,442,822 km (0.105 R)
• M17: 23,686,579 km (0.081 R)
• M18: 35,975,745 km (0.078 R)
• M19: 36,754,252 km (0.098 R)
• M20: 39,293,227 km (0.078 R)
• M21: 46,529,127 km (0.087 R)
• M22: 48,388,927 km (0.052 R)
• M23: 51,433,992 km (0.073 R)

Kuiper Belt

Range: 30.8 - 47.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 518 - 19,066 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit