🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.56

Radius: 1.46

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 0.56 AU - 0.74 AU

Year: 333 Days

Day: 42.7 Hours

Environment

Temp: -128 °C

Axial Tilt: 41.4 °

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: 4.77

Radius: 1.87

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 0.64 AU - 0.66 AU

Year: 333 Days

Day: 24.9 Hours

Environment

Temp: -136 °C

Axial Tilt: 15.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 762.3

Radius: 10.2

Gravity: 7.33 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 0.68 AU - 0.92 AU

Year: 455 Days

Day: 6 Hours

Environment

Temp: -148 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 5,417,667 km

• M1: 126,859 km (0.056 R)
• M2: 541,993 km (0.119 R)
• M3: 916,287 km (0.115 R)
• M4: 1,381,536 km (0.104 R)
• M5: 1,878,052 km (0.104 R)
• M6: 2,579,965 km (0.065 R)
• M7: 2,915,064 km (0.067 R)
• M8: 3,497,449 km (0.118 R)
• M9: 3,856,484 km (0.101 R)
• M10: 4,383,218 km (0.11 R)
• M11: 4,801,643 km (0.072 R)
• M12: 5,197,479 km (0.087 R)
• M13: 5,615,306 km (0.045 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 277.3

Radius: 12.1

Gravity: 1.89 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 0.73 AU - 1.05 AU

Year: 534 Days

Day: 14.5 Hours

Environment

Temp: -159 °C

Axial Tilt: 41.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 5,417,667 km

• M1: 150,495 km (0.071 R)
• M2: 546,331 km (0.118 R)
• M3: 1,268,291 km (0.103 R)
• M4: 1,970,802 km (0.099 R)
• M5: 2,703,982 km (0.098 R)
• M6: 3,263,178 km (0.111 R)
• M7: 3,898,670 km (0.071 R)
• M8: 4,344,921 km (0.06 R)
• M9: 4,811,068 km (0.107 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 65.7

Radius: 14.4

Gravity: 0.32 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 1.31 AU - 1.79 AU

Year: 1227 Days

Day: 9.7 Hours

Environment

Temp: -182 °C

Axial Tilt: 46.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 5,417,667 km

• M1: 179,069 km (0.044 R)
• M2: 716,125 km (0.111 R)
• M3: 1,415,495 km (0.078 R)
• M4: 2,142,541 km (0.112 R)
• M5: 2,665,086 km (0.095 R)
• M6: 3,534,399 km (0.103 R)
• M7: 4,770,526 km (0.084 R)
• M8: 5,246,697 km (0.11 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 407 - 19,765 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit