🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.99

Radius: 1.32

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 0.44 AU - 0.64 AU

Year: 252 Days

Day: 48 Hours

Environment

Temp: -129 °C

Axial Tilt: 1.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 868.8

Radius: 11.2

Gravity: 6.93 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.6 AU - 0.94 AU

Year: 430 Days

Day: 8.7 Hours

Environment

Temp: -135 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 27,615,627 km

• M1: 139,425 km (0.077 R)
• M2: 522,994 km (0.113 R)
• M3: 989,590 km (0.044 R)
• M4: 1,497,325 km (0.083 R)
• M5: 1,856,809 km (0.103 R)
• M6: 2,433,808 km (0.078 R)
• M7: 3,082,015 km (0.116 R)
• M8: 3,815,793 km (0.102 R)
• M9: 4,830,366 km (0.114 R)
• M10: 5,698,632 km (0.101 R)
• M11: 6,364,342 km (0.087 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 378.7

Radius: 8.7

Gravity: 5 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 0.84 AU - 0.84 AU

Year: 489 Days

Day: 13.9 Hours

Environment

Temp: -153 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 27,615,627 km

• M1: 108,309 km (0.106 R)
• M2: 409,300 km (0.115 R)
• M3: 850,015 km (0.08 R)
• M4: 1,161,777 km (0.097 R)
• M5: 1,491,790 km (0.103 R)
• M6: 1,765,404 km (0.105 R)
• M7: 2,214,497 km (0.103 R)
• M8: 2,738,239 km (0.096 R)
• M9: 3,597,978 km (0.089 R)
• M10: 4,487,188 km (0.118 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 331.4

Radius: 8.9

Gravity: 4.18 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 1.74 AU - 1.78 AU

Year: 1485 Days

Day: 12.9 Hours

Environment

Temp: -192 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 27,615,627 km

• M1: 113,395 km (0.04 R)
• M2: 856,747 km (0.085 R)
• M3: 1,847,534 km (0.086 R)
• M4: 2,388,180 km (0.034 R)
• M5: 3,236,400 km (0.076 R)
• M6: 3,753,111 km (0.1 R)
• M7: 4,427,349 km (0.059 R)
• M8: 5,257,767 km (0.077 R)
• M9: 6,797,129 km (0.114 R)
• M10: 9,521,007 km (0.052 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 99.5

Radius: 7.3

Gravity: 1.87 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 5.43 AU - 8.33 AU

Year: 11474 Days

Day: 24.5 Hours

Environment

Temp: -228 °C

Axial Tilt: 10 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 27,615,627 km

• M1: 90,806 km (0.029 R)
• M2: 368,160 km (0.116 R)
• M3: 741,407 km (0.066 R)
• M4: 1,153,699 km (0.089 R)
• M5: 2,129,974 km (0.044 R)
• M6: 3,329,001 km (0.11 R)
• M7: 4,165,403 km (0.076 R)
• M8: 5,743,810 km (0.041 R)
• M9: 8,112,393 km (0.116 R)
• M10: 10,754,441 km (0.102 R)
• M11: 24,064,463 km (0.087 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 401 - 14,170 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit