🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.52 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.03 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.18

Radius: 1.07

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 0.84 AU - 1.22 AU

Year: 371 Days

Day: 20 Hours

Environment

Temp: 70 °C

Axial Tilt: 27.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.42 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.68

Radius: 1.48

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 1.28 AU - 1.56 AU

Year: 600 Days

Day: 18.5 Hours

Environment

Temp: 9 °C

Axial Tilt: 12.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 52,473,692 km

• M1: 37,399 km (0.075 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.08 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.58

Radius: 0.8

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 1.62 AU - 2.54 AU

Year: 1064 Days

Day: 32.5 Hours

Environment

Temp: -61 °C

Axial Tilt: 22.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 4.39 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.61

Radius: 1.21

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 3.72 AU - 5.06 AU

Year: 3263 Days

Day: 22 Hours

Environment

Temp: -118 °C

Axial Tilt: 32.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Ice Giant

Semi-Major Axis: 13.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 272.3

Radius: 4.8

Gravity: 11.82 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 12.82 AU - 14.76 AU

Year: 18167 Days

Day: 18.3 Hours

Environment

Temp: -179 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 52,473,692 km

• M1: 81,830 km (0.111 R)
• M2: 254,915 km (0.036 R)
• M3: 442,361 km (0.08 R)
• M4: 602,730 km (0.065 R)
• M5: 1,713,644 km (0.084 R)
• M6: 2,935,709 km (0.11 R)
• M7: 3,593,341 km (0.101 R)
• M8: 4,140,420 km (0.083 R)
• M9: 5,363,682 km (0.067 R)
• M10: 7,996,156 km (0.119 R)
• M11: 11,840,073 km (0.07 R)
• M12: 12,074,044 km (0.087 R)
• M13: 13,993,834 km (0.051 R)
• M14: 15,197,049 km (0.111 R)
• M15: 16,980,406 km (0.082 R)
• M16: 19,460,589 km (0.115 R)
• M17: 24,175,315 km (0.089 R)
• M18: 26,000,110 km (0.103 R)
• M19: 28,017,886 km (0.114 R)
• M20: 31,014,930 km (0.08 R)
• M21: 33,050,209 km (0.105 R)
• M22: 38,015,362 km (0.093 R)
• M23: 40,475,948 km (0.032 R)
• M24: 42,628,512 km (0.1 R)

Kuiper Belt

Range: 30.9 - 50.9 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 388 - 14,575 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit