🌌 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: 0.52 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.94

Radius: 1.89

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 0.44 AU - 0.6 AU

Year: 131 Days

Day: 33.2 Hours

Environment

Temp: 252 °C

Axial Tilt: 12.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.89 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.44

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 0.81 AU - 0.97 AU

Year: 294 Days

Day: 47.9 Hours

Environment

Temp: 185 °C

Axial Tilt: 22.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.23 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.45

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 1.08 AU - 1.38 AU

Year: 477 Days

Day: 21.8 Hours

Environment

Temp: 18 °C

Axial Tilt: 6.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.51

Radius: 1.45

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 1.73 AU - 2.81 AU

Year: 1197 Days

Day: 15.6 Hours

Environment

Temp: -74 °C

Axial Tilt: 33.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.94 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.54

Radius: 1.66

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 2.6 AU - 3.28 AU

Year: 1764 Days

Day: 36.3 Hours

Environment

Temp: -98 °C

Axial Tilt: 10 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 3.85 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.31

Radius: 1.11

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 3.37 AU - 4.33 AU

Year: 2643 Days

Day: 47.4 Hours

Environment

Temp: -109 °C

Axial Tilt: 32.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 26,485,625 km

• M1: 225,444 km (0.106 R)

Asteroid Belt

Center: 9.51 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Ice Giant

Semi-Major Axis: 15.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 27.1

Radius: 8

Gravity: 0.42 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 14.1 AU - 16.22 AU

Year: 20650 Days

Day: 19.3 Hours

Environment

Temp: -177 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 26,485,625 km

• M1: 113,994 km (0.075 R)
• M2: 408,103 km (0.116 R)
• M3: 1,109,418 km (0.117 R)
• M4: 1,958,236 km (0.084 R)
• M5: 2,552,289 km (0.047 R)
• M6: 3,184,789 km (0.112 R)
• M7: 3,477,552 km (0.113 R)
• M8: 3,831,052 km (0.082 R)
• M9: 5,436,387 km (0.047 R)
• M10: 11,636,770 km (0.089 R)
• M11: 12,912,241 km (0.058 R)
• M12: 13,407,560 km (0.102 R)
• M13: 14,754,688 km (0.119 R)
• M14: 16,246,778 km (0.098 R)
• M15: 17,836,853 km (0.065 R)
• M16: 19,334,926 km (0.084 R)
• M17: 20,982,897 km (0.101 R)
• M18: 22,793,779 km (0.116 R)

Kuiper Belt

Range: 31.4 - 46.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 450 - 18,845 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit