🌌 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: 1.11

Radius: 1.04

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.53 AU - 0.79 AU

Year: 202 Days

Day: 26.6 Hours

Environment

Temp: 108 °C

Axial Tilt: 17.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.92 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.65

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 0.79 AU - 1.05 AU

Year: 332 Days

Day: 44.5 Hours

Environment

Temp: 33 °C

Axial Tilt: 33.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 0.99 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.75

Radius: 1.86

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 0.89 AU - 1.09 AU

Year: 371 Days

Day: 47.7 Hours

Environment

Temp: 30 °C

Axial Tilt: 5.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.15 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.22

Radius: 1.08

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 1.02 AU - 1.28 AU

Year: 465 Days

Day: 27.2 Hours

Environment

Temp: -16 °C

Axial Tilt: 34.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.9

Radius: 1.72

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 1.3 AU - 1.96 AU

Year: 784 Days

Day: 28.4 Hours

Environment

Temp: -47 °C

Axial Tilt: 19.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 40,896,341 km

• M1: 819,348 km (0.107 R)

Asteroid Belt

Center: 9.45 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Ice Giant

Semi-Major Axis: 17.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 58.3

Radius: 3.6

Gravity: 4.5 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 16 AU - 18.52 AU

Year: 27014 Days

Day: 17.9 Hours

Environment

Temp: -190 °C

Axial Tilt: 49.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 40,896,341 km

• M1: 50,564 km (0.043 R)
• M2: 275,110 km (0.086 R)
• M3: 746,344 km (0.082 R)
• M4: 894,296 km (0.08 R)
• M5: 2,819,321 km (0.049 R)
• M6: 5,274,821 km (0.071 R)
• M7: 7,412,874 km (0.1 R)
• M8: 9,001,753 km (0.092 R)
• M9: 14,177,241 km (0.084 R)
• M10: 18,986,962 km (0.091 R)
• M11: 20,648,545 km (0.04 R)
• M12: 23,234,644 km (0.113 R)
• M13: 30,626,873 km (0.111 R)
• M14: 33,010,117 km (0.112 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 338 - 17,087 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit