🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.74 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.49

Radius: 1.17

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 0.58 AU - 0.9 AU

Year: 242 Days

Day: 37.3 Hours

Environment

Temp: 133 °C

Axial Tilt: 16.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.81 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.2

Radius: 0.53

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 0.8 AU - 0.82 AU

Year: 278 Days

Day: 19.6 Hours

Environment

Temp: 135 °C

Axial Tilt: 42.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 20,248,128 km

• M1: 13,165 km (0.117 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.35

Radius: 0.66

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 1.83 AU - 2.81 AU

Year: 1346 Days

Day: 32.4 Hours

Environment

Temp: -96 °C

Axial Tilt: 29.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 20,248,128 km

• M1: 16,007 km (0.119 R)

Planet 4 - Terrestrial

Semi-Major Axis: 3.77 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.38

Radius: 1.14

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 3.41 AU - 4.13 AU

Year: 2787 Days

Day: 28 Hours

Environment

Temp: -120 °C

Axial Tilt: 37.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 20,248,128 km

• M1: 816,356 km (0.091 R)

Asteroid Belt

Center: 5.98 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 8.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 143.7

Radius: 13.4

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 6.63 AU - 9.73 AU

Year: 8909 Days

Day: 11.1 Hours

Environment

Temp: -174 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 20,248,128 km

• M1: 166,652 km (0.092 R)
• M2: 595,998 km (0.104 R)
• M3: 2,221,080 km (0.119 R)
• M4: 3,461,695 km (0.096 R)
• M5: 4,670,446 km (0.092 R)
• M6: 5,548,286 km (0.068 R)
• M7: 5,969,254 km (0.099 R)
• M8: 8,369,402 km (0.061 R)
• M9: 9,545,092 km (0.102 R)
• M10: 13,683,568 km (0.102 R)
• M11: 15,476,498 km (0.073 R)
• M12: 16,032,553 km (0.117 R)
• M13: 16,659,518 km (0.078 R)
• M14: 17,243,548 km (0.114 R)
• M15: 18,329,479 km (0.065 R)
• M16: 22,420,382 km (0.056 R)
• M17: 24,828,759 km (0.114 R)

Planet 6 - Ice Giant

Semi-Major Axis: 12.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 20.2

Radius: 4.8

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 11.34 AU - 12.82 AU

Year: 15988 Days

Day: 18.9 Hours

Environment

Temp: -181 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 20,248,128 km

• M1: 60,288 km (0.098 R)
• M2: 238,758 km (0.072 R)
• M3: 727,494 km (0.089 R)
• M4: 1,001,558 km (0.065 R)
• M5: 1,544,748 km (0.098 R)
• M6: 2,209,710 km (0.118 R)
• M7: 10,127,177 km (0.075 R)
• M8: 15,073,332 km (0.101 R)
• M9: 15,831,494 km (0.116 R)
• M10: 17,368,762 km (0.094 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 548 - 17,924 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit