🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.89 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.36

Radius: 0.66

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 0.7 AU - 1.08 AU

Year: 311 Days

Day: 46.5 Hours

Environment

Temp: 64 °C

Axial Tilt: 2.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.17 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.22

Radius: 0.55

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.88 AU - 1.46 AU

Year: 469 Days

Day: 34.5 Hours

Environment

Temp: 16 °C

Axial Tilt: 9.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.11

Radius: 1.04

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 1.33 AU - 2.13 AU

Year: 844 Days

Day: 19.5 Hours

Environment

Temp: -48 °C

Axial Tilt: 20.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 23,354,804 km

• M1: 49,517 km (0.079 R)

Planet 4 - Terrestrial

Semi-Major Axis: 3.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.68

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 2.96 AU - 4.34 AU

Year: 2586 Days

Day: 22.7 Hours

Environment

Temp: -128 °C

Axial Tilt: 20.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.76 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.9

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 3.21 AU - 4.31 AU

Year: 2704 Days

Day: 45.4 Hours

Environment

Temp: -117 °C

Axial Tilt: 143 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 9.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 76.2

Radius: 8

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 7.39 AU - 10.83 AU

Year: 10197 Days

Day: 10.9 Hours

Environment

Temp: -182 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 23,354,804 km

• M1: 99,483 km (0.098 R)
• M2: 371,452 km (0.043 R)
• M3: 1,316,012 km (0.112 R)
• M4: 2,886,042 km (0.106 R)
• M5: 3,294,444 km (0.078 R)
• M6: 5,223,808 km (0.057 R)
• M7: 5,615,156 km (0.077 R)
• M8: 6,368,830 km (0.113 R)
• M9: 7,379,513 km (0.113 R)
• M10: 7,738,997 km (0.113 R)
• M11: 19,662,546 km (0.113 R)
• M12: 22,869,924 km (0.069 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 437 - 12,187 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit