🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1

Radius: 1

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 0.49 AU - 0.61 AU

Year: 156 Days

Day: 22.6 Hours

Environment

Temp: 137 °C

Axial Tilt: 23.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.92 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.76

Radius: 0.9

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 0.86 AU - 0.98 AU

Year: 338 Days

Day: 23.2 Hours

Environment

Temp: 26 °C

Axial Tilt: 22.7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 43,867,538 km

• M1: 498,011 km (0.04 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.93 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.5

Radius: 1.65

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 0.79 AU - 1.07 AU

Year: 343 Days

Day: 18.3 Hours

Environment

Temp: 9 °C

Axial Tilt: 29 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.05 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.25

Radius: 1.38

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.81 AU - 1.29 AU

Year: 412 Days

Day: 24.6 Hours

Environment

Temp: 14 °C

Axial Tilt: 35.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 1.09 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.9

Radius: 1.29

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 1.04 AU - 1.14 AU

Year: 436 Days

Day: 44.3 Hours

Environment

Temp: 10 °C

Axial Tilt: 22.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 43,867,538 km

• M1: 115,639 km (0.041 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.85

Radius: 1.28

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 1.98 AU - 2.02 AU

Year: 1083 Days

Day: 21.9 Hours

Environment

Temp: -92 °C

Axial Tilt: 160 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.3 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 8.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 563.1

Radius: 9.5

Gravity: 6.24 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 6.52 AU - 10.68 AU

Year: 9656 Days

Day: 6.5 Hours

Environment

Temp: -167 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 43,867,538 km

• M1: 118,930 km (0.092 R)
• M2: 565,181 km (0.102 R)
• M3: 923,168 km (0.087 R)
• M4: 1,384,079 km (0.097 R)
• M5: 1,868,178 km (0.047 R)
• M6: 2,814,385 km (0.098 R)
• M7: 3,524,227 km (0.116 R)
• M8: 4,104,816 km (0.11 R)
• M9: 4,747,937 km (0.088 R)
• M10: 6,448,865 km (0.092 R)
• M11: 7,161,250 km (0.11 R)
• M12: 7,476,602 km (0.038 R)
• M13: 8,610,105 km (0.079 R)
• M14: 10,494,440 km (0.045 R)
• M15: 10,953,706 km (0.046 R)
• M16: 11,320,071 km (0.08 R)
• M17: 12,810,664 km (0.12 R)
• M18: 16,790,117 km (0.118 R)
• M19: 17,348,117 km (0.084 R)
• M20: 17,846,428 km (0.087 R)
• M21: 19,551,395 km (0.116 R)
• M22: 23,454,553 km (0.084 R)
• M23: 23,801,620 km (0.108 R)
• M24: 24,240,091 km (0.07 R)
• M25: 26,796,569 km (0.104 R)
• M26: 29,126,406 km (0.1 R)
• M27: 30,649,313 km (0.051 R)
• M28: 33,523,088 km (0.093 R)
• M29: 42,825,981 km (0.119 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: 308 - 17,740 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit