🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.01

Radius: 1.55

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.45 AU - 0.73 AU

Year: 166 Days

Day: 28.9 Hours

Environment

Temp: 219 °C

Axial Tilt: 22.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.73

Radius: 1.86

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 0.58 AU - 0.64 AU

Year: 175 Days

Day: 31.9 Hours

Environment

Temp: 218 °C

Axial Tilt: 16.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 65,737,446 km

• M1: 45,627 km (0.109 R)
• M2: 501,602 km (0.113 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.94 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.22

Radius: 1.78

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 2.31 AU - 3.57 AU

Year: 1851 Days

Day: 39.7 Hours

Environment

Temp: -104 °C

Axial Tilt: 11.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 65,737,446 km

• M1: 216,169 km (0.106 R)

Planet 4 - Terrestrial

Semi-Major Axis: 3.21 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.02

Radius: 1.56

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 2.62 AU - 3.8 AU

Year: 2111 Days

Day: 17.1 Hours

Environment

Temp: -107 °C

Axial Tilt: 19 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.81 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.54

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 3.3 AU - 4.32 AU

Year: 2730 Days

Day: 23.9 Hours

Environment

Temp: -130 °C

Axial Tilt: 27.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 7.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 87

Radius: 15

Gravity: 0.39 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 5.81 AU - 8.91 AU

Year: 7330 Days

Day: 11.8 Hours

Environment

Temp: -156 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 65,737,446 km

• M1: 186,997 km (0.105 R)
• M2: 689,646 km (0.08 R)
• M3: 1,484,908 km (0.073 R)
• M4: 3,327,057 km (0.108 R)
• M5: 4,050,662 km (0.091 R)
• M6: 5,465,409 km (0.096 R)
• M7: 7,610,343 km (0.116 R)
• M8: 13,094,451 km (0.059 R)
• M9: 15,741,137 km (0.114 R)
• M10: 18,278,915 km (0.103 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 487.9

Radius: 14.6

Gravity: 2.29 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 8.65 AU - 9.77 AU

Year: 10260 Days

Day: 5.3 Hours

Environment

Temp: -180 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 65,737,446 km

• M1: 181,612 km (0.041 R)
• M2: 675,584 km (0.078 R)
• M3: 1,841,251 km (0.025 R)
• M4: 2,468,365 km (0.039 R)
• M5: 3,463,789 km (0.098 R)
• M6: 5,377,744 km (0.058 R)
• M7: 5,866,630 km (0.081 R)
• M8: 7,396,418 km (0.081 R)
• M9: 7,879,021 km (0.11 R)
• M10: 13,998,172 km (0.068 R)
• M11: 15,247,913 km (0.053 R)
• M12: 15,833,887 km (0.091 R)
• M13: 17,260,154 km (0.047 R)
• M14: 17,825,484 km (0.074 R)
• M15: 19,217,791 km (0.108 R)
• M16: 31,375,161 km (0.099 R)
• M17: 35,175,247 km (0.114 R)
• M18: 39,272,134 km (0.075 R)
• M19: 43,028,387 km (0.081 R)

Planet 8 - Gas Giant

Semi-Major Axis: 11.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 913.6

Radius: 10.5

Gravity: 8.29 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 8.85 AU - 13.71 AU

Year: 13907 Days

Day: 10 Hours

Environment

Temp: -171 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 65,737,446 km

• M1: 131,347 km (0.092 R)
• M2: 720,912 km (0.103 R)
• M3: 1,048,980 km (0.1 R)
• M4: 1,681,480 km (0.1 R)
• M5: 2,104,094 km (0.089 R)
• M6: 2,619,309 km (0.105 R)
• M7: 3,191,521 km (0.086 R)
• M8: 3,590,349 km (0.118 R)
• M9: 4,456,670 km (0.118 R)
• M10: 4,922,219 km (0.104 R)
• M11: 6,942,089 km (0.102 R)
• M12: 7,661,655 km (0.049 R)
• M13: 8,282,337 km (0.116 R)
• M14: 8,630,152 km (0.062 R)
• M15: 10,290,090 km (0.043 R)
• M16: 11,285,813 km (0.06 R)
• M17: 12,089,752 km (0.067 R)
• M18: 14,160,486 km (0.104 R)
• M19: 15,766,568 km (0.06 R)
• M20: 17,088,266 km (0.104 R)
• M21: 17,490,833 km (0.092 R)
• M22: 18,992,347 km (0.109 R)
• M23: 23,711,412 km (0.069 R)
• M24: 27,368,033 km (0.117 R)
• M25: 28,253,652 km (0.032 R)
• M26: 43,781,313 km (0.057 R)
• M27: 45,915,326 km (0.073 R)
• M28: 50,389,500 km (0.044 R)
• M29: 53,585,808 km (0.106 R)
• M30: 57,273,096 km (0.1 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 245 - 12,617 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit