🌌 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 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.02

Radius: 1.56

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 0.41 AU - 0.61 AU

Year: 232 Days

Day: 14.7 Hours

Environment

Temp: -110 °C

Axial Tilt: 7.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.31

Radius: 0.63

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 0.5 AU - 0.68 AU

Year: 288 Days

Day: 23.6 Hours

Environment

Temp: -132 °C

Axial Tilt: 10.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 38.6

Radius: 11.9

Gravity: 0.27 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 1.05 AU - 1.07 AU

Year: 694 Days

Day: 8 Hours

Environment

Temp: -161 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 33,795,644 km

• M1: 148,102 km (0.108 R)
• M2: 535,411 km (0.1 R)
• M3: 1,056,759 km (0.11 R)
• M4: 2,502,024 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 953.2

Radius: 11.9

Gravity: 6.73 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 1.07 AU - 1.51 AU

Year: 932 Days

Day: 14.8 Hours

Environment

Temp: -167 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 33,795,644 km

• M1: 148,102 km (0.114 R)
• M2: 527,332 km (0.102 R)
• M3: 1,203,964 km (0.101 R)
• M4: 1,621,192 km (0.056 R)
• M5: 2,053,231 km (0.114 R)
• M6: 2,574,430 km (0.105 R)
• M7: 3,018,735 km (0.098 R)
• M8: 4,598,040 km (0.069 R)
• M9: 5,456,433 km (0.083 R)
• M10: 5,849,875 km (0.101 R)
• M11: 6,306,597 km (0.083 R)
• M12: 8,030,563 km (0.085 R)
• M13: 8,706,746 km (0.11 R)
• M14: 9,245,597 km (0.12 R)
• M15: 10,327,788 km (0.103 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 347.3

Radius: 13.7

Gravity: 1.85 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 2.38 AU - 3.26 AU

Year: 3011 Days

Day: 9.2 Hours

Environment

Temp: -204 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 33,795,644 km

• M1: 171,738 km (0.055 R)
• M2: 667,057 km (0.063 R)
• M3: 1,132,905 km (0.047 R)
• M4: 2,269,998 km (0.119 R)
• M5: 3,402,155 km (0.053 R)
• M6: 6,648,578 km (0.088 R)
• M7: 8,551,912 km (0.083 R)
• M8: 12,563,229 km (0.11 R)
• M9: 14,884,091 km (0.057 R)
• M10: 15,494,599 km (0.084 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 105

Radius: 6.7

Gravity: 2.34 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 6.4 AU - 10.14 AU

Year: 15121 Days

Day: 23.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 80.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 33,795,644 km

• M1: 87,515 km (0.097 R)
• M2: 515,215 km (0.116 R)
• M3: 839,394 km (0.045 R)
• M4: 1,177,634 km (0.104 R)
• M5: 1,818,811 km (0.101 R)
• M6: 2,289,895 km (0.084 R)
• M7: 3,407,690 km (0.063 R)
• M8: 3,811,604 km (0.103 R)
• M9: 4,608,063 km (0.108 R)
• M10: 5,073,911 km (0.105 R)
• M11: 8,593,500 km (0.116 R)
• M12: 14,999,431 km (0.102 R)
• M13: 16,516,203 km (0.078 R)
• M14: 24,010,009 km (0.114 R)
• M15: 31,813,034 km (0.11 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: 400 - 18,418 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit