🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1

Radius: 1

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 0.58 AU - 0.74 AU

Year: 188 Days

Day: 23.4 Hours

Environment

Temp: 229 °C

Axial Tilt: 31.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 53,342,023 km

• M1: 48,919 km (0.042 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.09 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.59

Radius: 0.81

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 0.82 AU - 1.36 AU

Year: 398 Days

Day: 19.7 Hours

Environment

Temp: 144 °C

Axial Tilt: 29 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 53,342,023 km

• M1: 62,831 km (0.089 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.12 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.61

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 0.85 AU - 1.39 AU

Year: 415 Days

Day: 47.7 Hours

Environment

Temp: 44 °C

Axial Tilt: 43.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (2)

Outer Limit: 53,342,023 km

• M1: 42,935 km (0.041 R)
• M2: 858,991 km (0.067 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.84 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.03

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 2.49 AU - 3.19 AU

Year: 1674 Days

Day: 45 Hours

Environment

Temp: -82 °C

Axial Tilt: 14.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.08 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.63

Radius: 1.85

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 2.54 AU - 3.62 AU

Year: 1891 Days

Day: 19.8 Hours

Environment

Temp: -97 °C

Axial Tilt: 2.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.31 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.83

Radius: 1.71

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 3.5 AU - 5.12 AU

Year: 3130 Days

Day: 45.1 Hours

Environment

Temp: -122 °C

Axial Tilt: 26.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 4.47 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.26

Radius: 1.79

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 3.54 AU - 5.4 AU

Year: 3306 Days

Day: 15.2 Hours

Environment

Temp: -113 °C

Axial Tilt: 22.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Terrestrial

Semi-Major Axis: 4.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.53

Radius: 0.78

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 4.01 AU - 5.27 AU

Year: 3497 Days

Day: 30.3 Hours

Environment

Temp: -122 °C

Axial Tilt: 39.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 6.99 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Gas Giant

Semi-Major Axis: 9.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 370.9

Radius: 12.7

Gravity: 2.3 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 9.12 AU - 9.54 AU

Year: 9970 Days

Day: 13.3 Hours

Environment

Temp: -160 °C

Axial Tilt: 0.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 53,342,023 km

• M1: 173,085 km (0.116 R)
• M2: 880,533 km (0.077 R)
• M3: 1,303,596 km (0.109 R)
• M4: 3,511,212 km (0.089 R)
• M5: 5,400,483 km (0.094 R)
• M6: 6,037,920 km (0.104 R)
• M7: 6,478,785 km (0.034 R)
• M8: 9,729,696 km (0.118 R)
• M9: 10,529,596 km (0.082 R)
• M10: 11,120,358 km (0.109 R)
• M11: 14,956,047 km (0.048 R)
• M12: 16,605,962 km (0.06 R)
• M13: 20,490,720 km (0.091 R)
• M14: 23,173,907 km (0.107 R)
• M15: 24,771,313 km (0.092 R)
• M16: 25,994,575 km (0.086 R)
• M17: 30,692,846 km (0.113 R)
• M18: 31,493,793 km (0.051 R)
• M19: 38,641,728 km (0.09 R)

Planet 10 - Gas Giant

Semi-Major Axis: 9.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 877.3

Radius: 10.1

Gravity: 8.6 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 8.82 AU - 10.34 AU

Year: 10373 Days

Day: 7.9 Hours

Environment

Temp: -172 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 53,342,023 km

• M1: 126,560 km (0.099 R)
• M2: 1,268,889 km (0.109 R)
• M3: 1,665,323 km (0.105 R)
• M4: 2,843,108 km (0.085 R)
• M5: 3,793,353 km (0.089 R)
• M6: 4,627,960 km (0.111 R)
• M7: 5,974,191 km (0.094 R)
• M8: 7,226,475 km (0.11 R)
• M9: 9,321,892 km (0.119 R)
• M10: 10,401,690 km (0.075 R)
• M11: 12,027,370 km (0.112 R)
• M12: 14,010,738 km (0.03 R)
• M13: 14,471,948 km (0.092 R)
• M14: 21,084,025 km (0.06 R)
• M15: 29,682,611 km (0.085 R)
• M16: 34,092,457 km (0.084 R)
• M17: 41,971,328 km (0.074 R)
• M18: 46,330,760 km (0.085 R)
• M19: 51,138,087 km (0.058 R)

Kuiper Belt

Range: 31.4 - 59.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 170 - 19,012 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit