🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.86 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.79

Radius: 1.87

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 0.65 AU - 1.07 AU

Year: 279 Days

Day: 12.1 Hours

Environment

Temp: 191 °C

Axial Tilt: 11.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 51,365,173 km

• M1: 316,699 km (0.044 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.95

Radius: 1.73

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 1.42 AU - 2.32 AU

Year: 895 Days

Day: 31.6 Hours

Environment

Temp: -49 °C

Axial Tilt: 35.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 4.11 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.87

Radius: 1.28

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 3.61 AU - 4.61 AU

Year: 2915 Days

Day: 39.7 Hours

Environment

Temp: -116 °C

Axial Tilt: 7.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 6.59 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 9.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 926.1

Radius: 10.7

Gravity: 8.09 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 8.65 AU - 9.47 AU

Year: 9540 Days

Day: 11.3 Hours

Environment

Temp: -162 °C

Axial Tilt: 81.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 51,365,173 km

• M1: 132,993 km (0.048 R)
• M2: 507,137 km (0.102 R)
• M3: 962,662 km (0.117 R)
• M4: 2,218,536 km (0.06 R)
• M5: 3,033,994 km (0.109 R)
• M6: 3,536,494 km (0.087 R)
• M7: 4,121,721 km (0.084 R)
• M8: 6,086,988 km (0.107 R)
• M9: 6,653,066 km (0.072 R)
• M10: 7,674,371 km (0.066 R)
• M11: 9,130,257 km (0.105 R)
• M12: 10,180,883 km (0.108 R)
• M13: 12,821,884 km (0.117 R)
• M14: 14,398,346 km (0.103 R)
• M15: 21,488,238 km (0.055 R)
• M16: 25,972,434 km (0.081 R)
• M17: 27,259,126 km (0.113 R)
• M18: 27,969,416 km (0.101 R)
• M19: 30,607,126 km (0.093 R)
• M20: 37,232,816 km (0.073 R)
• M21: 42,010,224 km (0.099 R)

Kuiper Belt

Range: 31.4 - 50.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 439 - 18,927 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit