🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.7

Radius: 1.69

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 0.39 AU - 0.63 AU

Year: 160 Days

Day: 38.8 Hours

Environment

Temp: 41 °C

Axial Tilt: 122.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.37

Radius: 1.13

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 0.61 AU - 0.89 AU

Year: 286 Days

Day: 19.5 Hours

Environment

Temp: -22 °C

Axial Tilt: 31.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.02

Radius: 1.74

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 0.93 AU - 0.97 AU

Year: 407 Days

Day: 14.9 Hours

Environment

Temp: -50 °C

Axial Tilt: 23.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.38

Radius: 0.68

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 1.01 AU - 1.13 AU

Year: 487 Days

Day: 46.5 Hours

Environment

Temp: -78 °C

Axial Tilt: 21.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 43,944,864 km

• M1: 486,343 km (0.063 R)

Asteroid Belt

Center: 1.86 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 2.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 249.6

Radius: 8.6

Gravity: 3.37 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 2.19 AU - 3.11 AU

Year: 1897 Days

Day: 6.9 Hours

Environment

Temp: -135 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 43,944,864 km

• M1: 107,112 km (0.058 R)
• M2: 546,930 km (0.046 R)
• M3: 1,106,875 km (0.051 R)
• M4: 1,392,158 km (0.105 R)
• M5: 1,899,444 km (0.107 R)
• M6: 2,202,230 km (0.026 R)
• M7: 2,840,265 km (0.094 R)
• M8: 3,139,162 km (0.12 R)
• M9: 4,029,867 km (0.109 R)
• M10: 4,320,536 km (0.09 R)
• M11: 4,773,668 km (0.061 R)
• M12: 5,138,836 km (0.055 R)
• M13: 6,123,041 km (0.082 R)
• M14: 7,079,869 km (0.062 R)
• M15: 7,555,740 km (0.037 R)
• M16: 8,627,309 km (0.111 R)
• M17: 10,547,697 km (0.063 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 668.3

Radius: 13.5

Gravity: 3.67 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 6.2 AU - 8.64 AU

Year: 8887 Days

Day: 6.5 Hours

Environment

Temp: -187 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 43,944,864 km

• M1: 173,982 km (0.076 R)
• M2: 1,843,345 km (0.118 R)
• M3: 2,886,341 km (0.094 R)
• M4: 3,600,073 km (0.105 R)
• M5: 4,569,467 km (0.09 R)
• M6: 5,286,789 km (0.085 R)
• M7: 6,946,876 km (0.096 R)
• M8: 7,451,320 km (0.09 R)
• M9: 7,897,122 km (0.1 R)
• M10: 11,429,876 km (0.114 R)
• M11: 11,969,625 km (0.077 R)
• M12: 14,424,376 km (0.055 R)
• M13: 16,644,109 km (0.108 R)
• M14: 17,550,224 km (0.112 R)
• M15: 19,766,666 km (0.079 R)
• M16: 23,692,264 km (0.075 R)
• M17: 31,237,831 km (0.116 R)
• M18: 32,939,955 km (0.067 R)
• M19: 41,749,923 km (0.077 R)
• M20: 43,421,680 km (0.114 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 183 - 11,400 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit