🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.87

Radius: 1.72

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 0.47 AU - 0.69 AU

Year: 162 Days

Day: 12.4 Hours

Environment

Temp: 171 °C

Axial Tilt: 3.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.12 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.75

Radius: 1.7

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 1.09 AU - 1.15 AU

Year: 435 Days

Day: 25.3 Hours

Environment

Temp: 10 °C

Axial Tilt: 22.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.56

Radius: 0.79

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 1.17 AU - 1.89 AU

Year: 695 Days

Day: 21 Hours

Environment

Temp: -41 °C

Axial Tilt: 9.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 68,278,066 km

• M1: 309,518 km (0.038 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.77 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.04

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 2.22 AU - 3.32 AU

Year: 1692 Days

Day: 43.8 Hours

Environment

Temp: -103 °C

Axial Tilt: 48.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 7.71 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Ice Giant

Semi-Major Axis: 12.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 725.8

Radius: 4.2

Gravity: 41.15 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 10.46 AU - 14.84 AU

Year: 16516 Days

Day: 19.9 Hours

Environment

Temp: -188 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 68,278,066 km

• M1: 53,706 km (0.09 R)
• M2: 220,058 km (0.113 R)
• M3: 358,736 km (0.062 R)
• M4: 606,320 km (0.118 R)
• M5: 788,680 km (0.064 R)
• M6: 1,293,423 km (0.119 R)
• M7: 1,750,893 km (0.054 R)
• M8: 2,853,879 km (0.058 R)
• M9: 4,551,066 km (0.099 R)
• M10: 4,999,411 km (0.072 R)
• M11: 7,090,490 km (0.099 R)
• M12: 9,981,320 km (0.11 R)
• M13: 10,267,051 km (0.068 R)
• M14: 12,357,532 km (0.099 R)
• M15: 13,571,519 km (0.078 R)
• M16: 14,279,266 km (0.088 R)
• M17: 15,691,021 km (0.084 R)
• M18: 16,708,885 km (0.079 R)
• M19: 19,845,803 km (0.078 R)
• M20: 20,480,248 km (0.101 R)
• M21: 22,077,504 km (0.112 R)
• M22: 29,414,532 km (0.117 R)
• M23: 30,001,703 km (0.047 R)
• M24: 32,428,929 km (0.067 R)
• M25: 32,803,971 km (0.113 R)
• M26: 40,634,522 km (0.075 R)
• M27: 42,844,980 km (0.106 R)
• M28: 43,599,252 km (0.073 R)
• M29: 56,178,638 km (0.108 R)
• M30: 59,289,376 km (0.029 R)
• M31: 59,849,919 km (0.09 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 259 - 18,818 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit