🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.81

Radius: 1.71

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 0.54 AU - 0.76 AU

Year: 333 Days

Day: 37.3 Hours

Environment

Temp: -142 °C

Axial Tilt: 17.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 168

Radius: 10.3

Gravity: 1.58 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 0.68 AU - 0.7 AU

Year: 364 Days

Day: 13.2 Hours

Environment

Temp: -137 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 36,153,089 km

• M1: 128,505 km (0.103 R)
• M2: 512,522 km (0.059 R)
• M3: 876,344 km (0.073 R)
• M4: 1,215,333 km (0.055 R)
• M5: 1,603,540 km (0.068 R)
• M6: 2,303,059 km (0.091 R)
• M7: 2,958,896 km (0.078 R)

Planet 3 - Gas Giant

Semi-Major Axis: 4.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 140.4

Radius: 13.7

Gravity: 0.75 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 3.46 AU - 5.66 AU

Year: 6191 Days

Day: 11 Hours

Environment

Temp: -215 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 36,153,089 km

• M1: 171,738 km (0.105 R)
• M2: 856,448 km (0.097 R)
• M3: 2,062,955 km (0.034 R)
• M4: 2,776,836 km (0.038 R)
• M5: 5,482,463 km (0.108 R)
• M6: 6,293,732 km (0.059 R)
• M7: 6,829,442 km (0.092 R)
• M8: 7,426,337 km (0.108 R)
• M9: 8,588,713 km (0.116 R)
• M10: 10,672,611 km (0.101 R)
• M11: 15,311,043 km (0.073 R)
• M12: 19,567,850 km (0.083 R)
• M13: 20,044,768 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 11.9

Radius: 12.7

Gravity: 0.07 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 4.3 AU - 6.04 AU

Year: 7474 Days

Day: 7.9 Hours

Environment

Temp: -221 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 36,153,089 km

• M1: 157,975 km (0.054 R)
• M2: 861,983 km (0.082 R)
• M3: 1,581,549 km (0.088 R)
• M4: 2,568,595 km (0.112 R)
• M5: 3,407,690 km (0.114 R)
• M6: 3,978,107 km (0.067 R)
• M7: 7,230,514 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 368.8

Radius: 10.8

Gravity: 3.16 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 5.28 AU - 6.36 AU

Year: 8927 Days

Day: 13.9 Hours

Environment

Temp: -219 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 36,153,089 km

• M1: 134,339 km (0.102 R)
• M2: 601,832 km (0.081 R)
• M3: 1,281,755 km (0.105 R)
• M4: 1,800,859 km (0.046 R)
• M5: 2,860,461 km (0.092 R)
• M6: 3,460,498 km (0.113 R)
• M7: 4,663,714 km (0.095 R)
• M8: 5,932,902 km (0.096 R)
• M9: 6,358,657 km (0.111 R)
• M10: 8,431,037 km (0.079 R)
• M11: 10,025,900 km (0.102 R)
• M12: 10,442,530 km (0.073 R)
• M13: 10,967,469 km (0.054 R)
• M14: 19,489,611 km (0.114 R)
• M15: 21,028,524 km (0.073 R)
• M16: 23,689,571 km (0.104 R)
• M17: 26,743,611 km (0.086 R)
• M18: 27,636,561 km (0.032 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 442 - 16,579 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit