🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.38

Radius: 1.63

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 0.58 AU - 0.68 AU

Year: 328 Days

Day: 21.5 Hours

Environment

Temp: -139 °C

Axial Tilt: 18.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 78.6

Radius: 11.5

Gravity: 0.59 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 0.65 AU - 0.81 AU

Year: 409 Days

Day: 14.4 Hours

Environment

Temp: -149 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 43,372,185 km

• M1: 143,165 km (0.064 R)
• M2: 636,389 km (0.119 R)
• M3: 1,027,289 km (0.097 R)
• M4: 1,402,031 km (0.059 R)
• M5: 2,106,338 km (0.086 R)
• M6: 2,619,010 km (0.105 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 905.3

Radius: 12

Gravity: 6.29 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 1.92 AU - 2.42 AU

Year: 2097 Days

Day: 8.3 Hours

Environment

Temp: -193 °C

Axial Tilt: 159.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 43,372,185 km

• M1: 160,519 km (0.073 R)
• M2: 641,476 km (0.108 R)
• M3: 1,067,082 km (0.098 R)
• M4: 1,644,380 km (0.109 R)
• M5: 2,316,074 km (0.058 R)
• M6: 6,068,886 km (0.101 R)
• M7: 7,052,193 km (0.077 R)
• M8: 7,703,542 km (0.028 R)
• M9: 8,689,093 km (0.083 R)
• M10: 9,438,279 km (0.092 R)
• M11: 10,415,901 km (0.091 R)
• M12: 12,277,198 km (0.103 R)
• M13: 14,350,774 km (0.099 R)
• M14: 14,725,816 km (0.117 R)
• M15: 15,397,660 km (0.071 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 620.3

Radius: 9.5

Gravity: 6.87 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 5.24 AU - 6.26 AU

Year: 9045 Days

Day: 8.9 Hours

Environment

Temp: -224 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 43,372,185 km

• M1: 138,677 km (0.048 R)
• M2: 458,966 km (0.102 R)
• M3: 978,968 km (0.092 R)
• M4: 1,457,233 km (0.102 R)
• M5: 1,878,949 km (0.079 R)
• M6: 2,256,235 km (0.077 R)
• M7: 3,345,756 km (0.048 R)
• M8: 3,955,517 km (0.107 R)
• M9: 4,580,238 km (0.064 R)
• M10: 5,557,411 km (0.074 R)
• M11: 6,412,962 km (0.086 R)
• M12: 8,044,476 km (0.039 R)
• M13: 8,601,279 km (0.118 R)
• M14: 9,046,931 km (0.03 R)
• M15: 9,839,800 km (0.102 R)
• M16: 11,617,172 km (0.086 R)
• M17: 18,147,867 km (0.095 R)
• M18: 20,408,441 km (0.088 R)
• M19: 28,502,882 km (0.095 R)
• M20: 39,229,798 km (0.069 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 376 - 15,330 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit