🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 406.4

Radius: 9.4

Gravity: 4.6 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 0.41 AU - 0.61 AU

Year: 243 Days

Day: 7.6 Hours

Environment

Temp: -143 °C

Axial Tilt: 47.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 69,024,296 km

• M1: 116,986 km (0.069 R)
• M2: 461,958 km (0.118 R)
• M3: 773,122 km (0.097 R)
• M4: 1,178,831 km (0.074 R)
• M5: 1,634,806 km (0.078 R)
• M6: 1,988,305 km (0.088 R)
• M7: 2,454,751 km (0.106 R)
• M8: 2,808,102 km (0.117 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 133.5

Radius: 9.6

Gravity: 1.45 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 0.44 AU - 0.64 AU

Year: 265 Days

Day: 7.3 Hours

Environment

Temp: -149 °C

Axial Tilt: 14.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 69,024,296 km

• M1: 119,379 km (0.082 R)
• M2: 445,802 km (0.105 R)
• M3: 1,660,536 km (0.049 R)
• M4: 2,269,400 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 129.2

Radius: 12.3

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 0.48 AU - 0.66 AU

Year: 287 Days

Day: 10.7 Hours

Environment

Temp: -154 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 69,024,296 km

• M1: 153,188 km (0.082 R)
• M2: 888,462 km (0.106 R)
• M3: 1,508,994 km (0.119 R)
• M4: 2,244,118 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 320.8

Radius: 12

Gravity: 2.23 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 1.24 AU - 1.58 AU

Year: 1116 Days

Day: 11.8 Hours

Environment

Temp: -190 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 69,024,296 km

• M1: 149,299 km (0.063 R)
• M2: 548,276 km (0.119 R)
• M3: 969,394 km (0.055 R)
• M4: 1,455,288 km (0.113 R)
• M5: 2,170,665 km (0.089 R)
• M6: 2,643,544 km (0.056 R)
• M7: 3,121,210 km (0.079 R)
• M8: 3,713,169 km (0.03 R)
• M9: 4,158,671 km (0.094 R)
• M10: 5,413,349 km (0.113 R)
• M11: 7,059,823 km (0.09 R)
• M12: 8,254,811 km (0.096 R)

Planet 5 - Ice Giant

Semi-Major Axis: 8.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 679.6

Radius: 7.4

Gravity: 12.41 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 8.19 AU - 9.37 AU

Year: 17349 Days

Day: 23.7 Hours

Environment

Temp: -229 °C

Axial Tilt: 2.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 69,024,296 km

• M1: 92,003 km (0.1 R)
• M2: 329,415 km (0.087 R)
• M3: 730,337 km (0.099 R)
• M4: 1,105,827 km (0.074 R)
• M5: 2,086,591 km (0.104 R)
• M6: 2,591,783 km (0.11 R)
• M7: 3,124,202 km (0.06 R)
• M8: 4,056,496 km (0.069 R)
• M9: 5,727,055 km (0.106 R)
• M10: 9,452,790 km (0.056 R)
• M11: 12,992,725 km (0.104 R)
• M12: 16,362,118 km (0.032 R)
• M13: 18,247,051 km (0.115 R)
• M14: 19,022,566 km (0.057 R)
• M15: 20,731,572 km (0.064 R)
• M16: 25,500,603 km (0.114 R)
• M17: 30,952,847 km (0.097 R)
• M18: 31,807,798 km (0.11 R)
• M19: 32,178,951 km (0.098 R)
• M20: 50,176,323 km (0.105 R)
• M21: 52,898,405 km (0.116 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 500 - 19,648 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit