🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.8

Radius: 1.87

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.5 AU - 0.68 AU

Year: 297 Days

Day: 13.5 Hours

Environment

Temp: -123 °C

Axial Tilt: 33.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 20,028,018 km

• M1: 339,288 km (0.108 R)
• M2: 449,841 km (0.071 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 193.2

Radius: 8.7

Gravity: 2.55 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.86 AU - 1.28 AU

Year: 726 Days

Day: 11.2 Hours

Environment

Temp: -154 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 20,028,018 km

• M1: 110,104 km (0.101 R)
• M2: 522,845 km (0.069 R)
• M3: 952,639 km (0.109 R)
• M4: 1,398,740 km (0.064 R)
• M5: 1,971,401 km (0.078 R)
• M6: 2,742,279 km (0.12 R)
• M7: 3,343,812 km (0.104 R)
• M8: 3,639,567 km (0.073 R)
• M9: 5,406,916 km (0.072 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 47

Radius: 12.8

Gravity: 0.29 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 1.4 AU - 1.8 AU

Year: 1328 Days

Day: 11.1 Hours

Environment

Temp: -172 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 20,028,018 km

• M1: 168,148 km (0.111 R)
• M2: 1,046,886 km (0.111 R)
• M3: 1,863,541 km (0.092 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 255.2

Radius: 9.5

Gravity: 2.83 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 3.31 AU - 3.83 AU

Year: 4425 Days

Day: 10.7 Hours

Environment

Temp: -208 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 20,028,018 km

• M1: 118,182 km (0.072 R)
• M2: 468,092 km (0.052 R)
• M3: 801,545 km (0.101 R)
• M4: 1,110,315 km (0.084 R)
• M5: 1,411,606 km (0.102 R)
• M6: 1,896,452 km (0.091 R)
• M7: 2,238,433 km (0.084 R)
• M8: 2,837,722 km (0.119 R)
• M9: 3,166,987 km (0.065 R)
• M10: 3,503,433 km (0.098 R)
• M11: 4,269,972 km (0.087 R)
• M12: 4,794,612 km (0.062 R)
• M13: 5,485,604 km (0.111 R)
• M14: 7,124,299 km (0.098 R)
• M15: 9,749,293 km (0.071 R)
• M16: 10,235,786 km (0.06 R)
• M17: 10,935,904 km (0.086 R)
• M18: 11,461,291 km (0.115 R)
• M19: 13,183,761 km (0.105 R)
• M20: 16,760,796 km (0.075 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: 542 - 13,541 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit