🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.85 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.88

Radius: 1.29

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.69 AU - 1.01 AU

Year: 279 Days

Day: 28 Hours

Environment

Temp: 189 °C

Axial Tilt: 13.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.98 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.11

Radius: 1.04

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 0.98 AU - 0.98 AU

Year: 346 Days

Day: 30.8 Hours

Environment

Temp: 97 °C

Axial Tilt: 21 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.04 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.91

Radius: 1.73

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 0.87 AU - 1.21 AU

Year: 378 Days

Day: 37.9 Hours

Environment

Temp: 25 °C

Axial Tilt: 23.5 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.24 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.96

Radius: 1.31

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 1.19 AU - 1.29 AU

Year: 492 Days

Day: 25.8 Hours

Environment

Temp: 18 °C

Axial Tilt: 32.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 54,558,574 km

• M1: 36,801 km (0.089 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.81

Radius: 1.27

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 3.39 AU - 3.67 AU

Year: 2364 Days

Day: 44.4 Hours

Environment

Temp: -118 °C

Axial Tilt: 44.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 3.84 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.84

Radius: 1.88

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 3.1 AU - 4.58 AU

Year: 2682 Days

Day: 28 Hours

Environment

Temp: -109 °C

Axial Tilt: 20.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 54,558,574 km

• M1: 211,531 km (0.071 R)
• M2: 584,778 km (0.087 R)

Asteroid Belt

Center: 10.53 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Ice Giant

Semi-Major Axis: 17.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 155.7

Radius: 6.8

Gravity: 3.37 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 13.53 AU - 20.91 AU

Year: 25471 Days

Day: 17.2 Hours

Environment

Temp: -189 °C

Axial Tilt: 49.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 54,558,574 km

• M1: 84,672 km (0.082 R)
• M2: 333,753 km (0.066 R)
• M3: 1,937,292 km (0.048 R)
• M4: 2,282,864 km (0.081 R)
• M5: 2,501,127 km (0.102 R)
• M6: 4,820,492 km (0.067 R)
• M7: 5,959,530 km (0.04 R)
• M8: 6,222,673 km (0.068 R)
• M9: 8,473,074 km (0.085 R)
• M10: 9,246,944 km (0.117 R)
• M11: 13,770,634 km (0.053 R)
• M12: 16,541,785 km (0.117 R)
• M13: 19,335,375 km (0.102 R)
• M14: 22,609,175 km (0.083 R)
• M15: 23,997,294 km (0.113 R)
• M16: 24,664,201 km (0.115 R)
• M17: 26,942,427 km (0.104 R)
• M18: 34,012,871 km (0.053 R)
• M19: 38,228,689 km (0.062 R)
• M20: 39,268,992 km (0.102 R)
• M21: 48,581,460 km (0.117 R)
• M22: 49,801,580 km (0.114 R)
• M23: 52,940,592 km (0.069 R)

Kuiper Belt

Range: 30.8 - 47.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 525 - 10,795 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit