🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.72 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.38

Radius: 0.68

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 0.7 AU - 0.74 AU

Year: 222 Days

Day: 41.2 Hours

Environment

Temp: 167 °C

Axial Tilt: 18.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.91 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.78

Radius: 1.7

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 0.74 AU - 1.08 AU

Year: 315 Days

Day: 21.6 Hours

Environment

Temp: 160 °C

Axial Tilt: 12.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.23 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.05

Radius: 1.02

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.99 AU - 1.47 AU

Year: 496 Days

Day: 46.3 Hours

Environment

Temp: 14 °C

Axial Tilt: 31.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 2.12 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.45

Radius: 1.16

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 1.62 AU - 2.62 AU

Year: 1122 Days

Day: 25.8 Hours

Environment

Temp: -65 °C

Axial Tilt: 5.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 3.66 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 5.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 294.1

Radius: 10.3

Gravity: 2.77 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 4.33 AU - 6.07 AU

Year: 4310 Days

Day: 7.4 Hours

Environment

Temp: -140 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 20,631,208 km

• M1: 128,505 km (0.099 R)
• M2: 617,839 km (0.112 R)
• M3: 948,301 km (0.09 R)
• M4: 1,325,736 km (0.102 R)
• M5: 1,934,899 km (0.104 R)
• M6: 2,614,821 km (0.093 R)
• M7: 3,128,989 km (0.075 R)
• M8: 4,232,872 km (0.114 R)
• M9: 5,916,147 km (0.092 R)
• M10: 7,040,824 km (0.067 R)
• M11: 8,640,175 km (0.099 R)
• M12: 10,008,397 km (0.037 R)
• M13: 10,391,218 km (0.066 R)
• M14: 12,150,638 km (0.118 R)
• M15: 13,397,985 km (0.058 R)
• M16: 14,052,775 km (0.096 R)
• M17: 14,777,876 km (0.109 R)
• M18: 15,527,810 km (0.104 R)
• M19: 16,041,679 km (0.05 R)
• M20: 16,941,211 km (0.11 R)
• M21: 17,596,150 km (0.032 R)
• M22: 18,782,910 km (0.063 R)
• M23: 19,366,492 km (0.043 R)

Kuiper Belt

Range: 30.2 - 56.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 527 - 20,281 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit