🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.74 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.37

Radius: 0.67

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.59 AU - 0.89 AU

Year: 244 Days

Day: 28.5 Hours

Environment

Temp: 143 °C

Axial Tilt: 34.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.02 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.99

Radius: 1.74

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 0.87 AU - 1.17 AU

Year: 394 Days

Day: 44.6 Hours

Environment

Temp: -2 °C

Axial Tilt: 38.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 3.76 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.32

Radius: 1.4

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 3.32 AU - 4.2 AU

Year: 2792 Days

Day: 21.5 Hours

Environment

Temp: -138 °C

Axial Tilt: 39.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.14 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 4.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 565.5

Radius: 14.7

Gravity: 2.62 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 4.31 AU - 4.71 AU

Year: 3667 Days

Day: 8.9 Hours

Environment

Temp: -150 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 23,037,590 km

• M1: 182,958 km (0.089 R)
• M2: 668,553 km (0.111 R)
• M3: 1,757,925 km (0.11 R)
• M4: 2,421,990 km (0.102 R)
• M5: 3,604,710 km (0.078 R)
• M6: 4,505,140 km (0.116 R)
• M7: 5,045,787 km (0.111 R)
• M8: 5,603,487 km (0.076 R)
• M9: 6,517,381 km (0.112 R)
• M10: 7,369,042 km (0.1 R)
• M11: 8,536,802 km (0.102 R)
• M12: 10,097,108 km (0.117 R)
• M13: 11,196,353 km (0.084 R)
• M14: 11,709,773 km (0.085 R)
• M15: 12,194,321 km (0.119 R)
• M16: 12,830,411 km (0.095 R)
• M17: 13,440,770 km (0.098 R)
• M18: 18,037,614 km (0.107 R)
• M19: 19,531,498 km (0.05 R)
• M20: 20,214,263 km (0.088 R)
• M21: 21,300,792 km (0.112 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 537 - 18,693 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit