🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.33

Radius: 1.12

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 0.6 AU - 0.66 AU

Year: 176 Days

Day: 35.4 Hours

Environment

Temp: 205 °C

Axial Tilt: 31.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.89

Radius: 1.29

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 0.54 AU - 0.76 AU

Year: 184 Days

Day: 47.5 Hours

Environment

Temp: 160 °C

Axial Tilt: 19.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.85 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.45

Radius: 1.43

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 0.8 AU - 0.9 AU

Year: 275 Days

Day: 21.2 Hours

Environment

Temp: 189 °C

Axial Tilt: 18.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.54 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.62

Radius: 0.83

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 1.33 AU - 1.75 AU

Year: 672 Days

Day: 33.3 Hours

Environment

Temp: 4 °C

Axial Tilt: 24 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 49,389,444 km

• M1: 67,917 km (0.081 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.66

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 2.1 AU - 3.22 AU

Year: 1525 Days

Day: 21.6 Hours

Environment

Temp: -82 °C

Axial Tilt: 28.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.84 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.41

Radius: 1.63

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 4.31 AU - 5.37 AU

Year: 3742 Days

Day: 20.2 Hours

Environment

Temp: -124 °C

Axial Tilt: 39.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 49,389,444 km

• M1: 1,983,668 km (0.057 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 698.7

Radius: 12.7

Gravity: 4.33 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 7.61 AU - 11.47 AU

Year: 10356 Days

Day: 8.7 Hours

Environment

Temp: -163 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 49,389,444 km

• M1: 157,975 km (0.096 R)
• M2: 974,331 km (0.056 R)
• M3: 1,487,152 km (0.101 R)
• M4: 2,571,587 km (0.036 R)
• M5: 3,600,970 km (0.12 R)
• M6: 4,764,842 km (0.088 R)
• M7: 5,636,698 km (0.115 R)
• M8: 6,961,238 km (0.046 R)
• M9: 8,711,533 km (0.109 R)
• M10: 12,526,877 km (0.104 R)
• M11: 15,366,394 km (0.115 R)
• M12: 16,331,001 km (0.033 R)
• M13: 16,900,071 km (0.077 R)
• M14: 18,380,791 km (0.116 R)
• M15: 24,338,975 km (0.106 R)
• M16: 29,129,697 km (0.094 R)
• M17: 29,546,627 km (0.108 R)
• M18: 36,287,507 km (0.077 R)
• M19: 41,704,894 km (0.1 R)
• M20: 44,261,522 km (0.058 R)

Kuiper Belt

Range: 31.2 - 58.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 167 - 13,655 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit