🌌 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: 1.58

Radius: 1.2

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 0.45 AU - 0.65 AU

Year: 153 Days

Day: 19.9 Hours

Environment

Temp: 204 °C

Axial Tilt: 49.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.77 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.01

Radius: 1.32

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 0.6 AU - 0.94 AU

Year: 253 Days

Day: 19 Hours

Environment

Temp: 162 °C

Axial Tilt: 39.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 63,040,468 km

• M1: 65,374 km (0.072 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.14

Radius: 1.77

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 2.39 AU - 2.79 AU

Year: 1562 Days

Day: 18.6 Hours

Environment

Temp: -102 °C

Axial Tilt: 17.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.01 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.21

Radius: 0.54

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 2.37 AU - 3.65 AU

Year: 1957 Days

Day: 44.6 Hours

Environment

Temp: -104 °C

Axial Tilt: 32.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 63,040,468 km

• M1: 12,716 km (0.08 R)
• M2: 118,033 km (0.086 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 373.5

Radius: 14.4

Gravity: 1.8 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 4.56 AU - 6.88 AU

Year: 5127 Days

Day: 9 Hours

Environment

Temp: -162 °C

Axial Tilt: 42.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 63,040,468 km

• M1: 199,713 km (0.031 R)
• M2: 685,757 km (0.102 R)
• M3: 1,481,917 km (0.098 R)
• M4: 1,933,403 km (0.114 R)
• M5: 2,418,399 km (0.086 R)
• M6: 3,073,339 km (0.1 R)
• M7: 3,907,796 km (0.09 R)
• M8: 4,888,858 km (0.118 R)
• M9: 6,892,871 km (0.098 R)
• M10: 9,552,123 km (0.088 R)
• M11: 10,854,522 km (0.089 R)
• M12: 13,316,305 km (0.109 R)
• M13: 14,522,064 km (0.114 R)
• M14: 15,045,507 km (0.09 R)
• M15: 16,409,390 km (0.101 R)
• M16: 18,516,327 km (0.069 R)
• M17: 20,601,123 km (0.071 R)

Planet 6 - Ice Giant

Semi-Major Axis: 15.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 289.5

Radius: 7.1

Gravity: 5.74 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 12.38 AU - 18.92 AU

Year: 23201 Days

Day: 20.4 Hours

Environment

Temp: -205 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 63,040,468 km

• M1: 108,159 km (0.08 R)
• M2: 376,239 km (0.027 R)
• M3: 654,790 km (0.059 R)
• M4: 1,156,840 km (0.062 R)
• M5: 2,562,612 km (0.068 R)
• M6: 2,787,308 km (0.091 R)
• M7: 3,708,830 km (0.07 R)
• M8: 5,023,945 km (0.096 R)
• M9: 5,524,201 km (0.074 R)
• M10: 8,488,183 km (0.073 R)
• M11: 8,939,819 km (0.112 R)
• M12: 10,222,920 km (0.098 R)
• M13: 20,145,597 km (0.113 R)
• M14: 20,858,730 km (0.075 R)
• M15: 22,146,918 km (0.119 R)
• M16: 29,505,188 km (0.1 R)
• M17: 32,805,766 km (0.089 R)
• M18: 40,690,770 km (0.1 R)
• M19: 43,428,711 km (0.117 R)
• M20: 48,789,401 km (0.08 R)
• M21: 57,011,599 km (0.1 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 360 - 12,979 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit