🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.25

Radius: 1.38

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.46 AU - 0.62 AU

Year: 146 Days

Day: 20.7 Hours

Environment

Temp: 172 °C

Axial Tilt: 29.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.87 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.28

Radius: 1.79

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 0.65 AU - 1.09 AU

Year: 298 Days

Day: 39.2 Hours

Environment

Temp: 146 °C

Axial Tilt: 19.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.96 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.79

Radius: 0.91

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 0.82 AU - 1.1 AU

Year: 345 Days

Day: 39 Hours

Environment

Temp: 29 °C

Axial Tilt: 29.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.19 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.89

Radius: 1.29

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 1.12 AU - 1.26 AU

Year: 477 Days

Day: 18.6 Hours

Environment

Temp: 5 °C

Axial Tilt: 21.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 1.23 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.96

Radius: 1.9

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 1.07 AU - 1.39 AU

Year: 501 Days

Day: 31.5 Hours

Environment

Temp: 13 °C

Axial Tilt: 31.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (2)

Outer Limit: 37,059,187 km

• M1: 969,394 km (0.08 R)
• M2: 1,031,477 km (0.056 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.07 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.13

Radius: 1.58

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 1.86 AU - 2.28 AU

Year: 1093 Days

Day: 46.7 Hours

Environment

Temp: -74 °C

Axial Tilt: 44 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.34 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 6.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 378.8

Radius: 8.6

Gravity: 5.12 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 5 AU - 8.22 AU

Year: 6238 Days

Day: 7.8 Hours

Environment

Temp: -147 °C

Axial Tilt: 17.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 37,059,187 km

• M1: 107,112 km (0.071 R)
• M2: 428,598 km (0.064 R)
• M3: 708,645 km (0.12 R)
• M4: 1,282,054 km (0.094 R)
• M5: 1,752,838 km (0.104 R)
• M6: 2,288,399 km (0.084 R)
• M7: 3,391,982 km (0.106 R)
• M8: 3,662,754 km (0.104 R)
• M9: 5,836,262 km (0.045 R)
• M10: 6,288,346 km (0.068 R)
• M11: 6,602,652 km (0.108 R)
• M12: 9,345,678 km (0.045 R)
• M13: 10,967,469 km (0.032 R)
• M14: 15,203,183 km (0.119 R)
• M15: 17,993,781 km (0.117 R)
• M16: 19,278,678 km (0.03 R)

Planet 8 - Gas Giant

Semi-Major Axis: 7.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 462.3

Radius: 11.3

Gravity: 3.62 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 7.09 AU - 8.87 AU

Year: 8275 Days

Day: 6.8 Hours

Environment

Temp: -173 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 37,059,187 km

• M1: 140,622 km (0.1 R)
• M2: 549,922 km (0.088 R)
• M3: 1,050,327 km (0.045 R)
• M4: 1,723,367 km (0.083 R)
• M5: 2,134,462 km (0.059 R)
• M6: 3,350,244 km (0.11 R)
• M7: 4,097,186 km (0.054 R)
• M8: 5,422,025 km (0.088 R)
• M9: 9,371,858 km (0.058 R)
• M10: 9,818,557 km (0.079 R)
• M11: 14,209,404 km (0.039 R)
• M12: 16,733,868 km (0.077 R)
• M13: 18,067,832 km (0.092 R)
• M14: 24,873,189 km (0.105 R)
• M15: 33,008,321 km (0.063 R)
• M16: 34,675,739 km (0.085 R)
• M17: 35,962,730 km (0.063 R)
• M18: 36,727,923 km (0.089 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 164 - 11,211 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit