🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.18

Radius: 1.77

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.41 AU - 0.61 AU

Year: 135 Days

Day: 30.6 Hours

Environment

Temp: 248 °C

Axial Tilt: 7.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 4.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.23

Radius: 1.78

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 3.46 AU - 5.58 AU

Year: 3564 Days

Day: 21.8 Hours

Environment

Temp: -129 °C

Axial Tilt: 10.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Ice Giant

Semi-Major Axis: 14.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 409

Radius: 7.7

Gravity: 6.9 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 12.04 AU - 17.66 AU

Year: 21222 Days

Day: 24.8 Hours

Environment

Temp: -191 °C

Axial Tilt: 24.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 66,656,178 km

• M1: 96,341 km (0.116 R)
• M2: 434,432 km (0.109 R)
• M3: 775,964 km (0.112 R)
• M4: 1,050,775 km (0.115 R)
• M5: 2,998,689 km (0.08 R)
• M6: 4,452,182 km (0.073 R)
• M7: 4,784,589 km (0.035 R)
• M8: 11,536,090 km (0.067 R)
• M9: 13,421,323 km (0.096 R)
• M10: 15,653,921 km (0.106 R)
• M11: 31,682,136 km (0.108 R)
• M12: 36,260,579 km (0.11 R)
• M13: 42,876,545 km (0.109 R)
• M14: 52,264,260 km (0.069 R)
• M15: 61,787,960 km (0.039 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 348 - 19,816 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit