🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.8

Radius: 1.87

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 0.6 AU - 0.72 AU

Year: 202 Days

Day: 37.3 Hours

Environment

Temp: 176 °C

Axial Tilt: 23.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.78 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.3

Radius: 1.4

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 0.67 AU - 0.89 AU

Year: 260 Days

Day: 35.3 Hours

Environment

Temp: 90 °C

Axial Tilt: 43.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 61,155,689 km

• M1: 548,875 km (0.111 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.08 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.17

Radius: 1.59

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 1 AU - 1.16 AU

Year: 423 Days

Day: 13 Hours

Environment

Temp: 3 °C

Axial Tilt: 49.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 61,155,689 km

• M1: 97,239 km (0.099 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.19 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.2

Radius: 0.53

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 1.04 AU - 1.34 AU

Year: 489 Days

Day: 22.1 Hours

Environment

Temp: 5 °C

Axial Tilt: 9.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 3.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.86

Radius: 1.28

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 3.54 AU - 3.8 AU

Year: 2649 Days

Day: 43.7 Hours

Environment

Temp: -116 °C

Axial Tilt: 39.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Ice Giant

Semi-Major Axis: 15.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 283.2

Radius: 3.5

Gravity: 23.12 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 13.79 AU - 16.69 AU

Year: 22413 Days

Day: 25 Hours

Environment

Temp: -186 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 61,155,689 km

• M1: 50,714 km (0.049 R)
• M2: 328,218 km (0.052 R)
• M3: 1,193,791 km (0.098 R)
• M4: 2,445,476 km (0.057 R)
• M5: 2,641,300 km (0.094 R)
• M6: 4,603,575 km (0.096 R)
• M7: 4,734,773 km (0.09 R)
• M8: 9,827,832 km (0.097 R)
• M9: 12,467,487 km (0.056 R)
• M10: 12,722,701 km (0.108 R)
• M11: 15,543,817 km (0.042 R)
• M12: 22,569,532 km (0.096 R)
• M13: 30,403,673 km (0.108 R)
• M14: 36,006,861 km (0.067 R)
• M15: 40,703,785 km (0.095 R)
• M16: 49,041,174 km (0.118 R)
• M17: 52,439,589 km (0.104 R)
• M18: 55,991,641 km (0.101 R)
• M19: 57,210,414 km (0.102 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 185 - 18,375 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit