🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.71 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.58

Radius: 1.46

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 0.62 AU - 0.8 AU

Year: 215 Days

Day: 29.5 Hours

Environment

Temp: 202 °C

Axial Tilt: 49 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.24

Radius: 1.09

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 1.45 AU - 1.55 AU

Year: 661 Days

Day: 34.6 Hours

Environment

Temp: -34 °C

Axial Tilt: 26.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 3.78 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.13

Radius: 1.05

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 3.3 AU - 4.26 AU

Year: 2645 Days

Day: 43.3 Hours

Environment

Temp: -108 °C

Axial Tilt: 13.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 6.79 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 9.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 375.6

Radius: 13.9

Gravity: 1.94 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 7.45 AU - 12.13 AU

Year: 11024 Days

Day: 8.2 Hours

Environment

Temp: -169 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 69,296,461 km

• M1: 172,935 km (0.107 R)
• M2: 707,149 km (0.068 R)
• M3: 3,004,673 km (0.104 R)
• M4: 3,534,399 km (0.093 R)
• M5: 4,529,375 km (0.099 R)
• M6: 6,450,810 km (0.101 R)
• M7: 8,058,089 km (0.051 R)
• M8: 8,779,600 km (0.087 R)
• M9: 11,570,498 km (0.115 R)
• M10: 13,282,945 km (0.109 R)
• M11: 14,230,348 km (0.111 R)
• M12: 20,808,017 km (0.107 R)
• M13: 22,167,263 km (0.104 R)
• M14: 25,508,382 km (0.112 R)
• M15: 27,439,840 km (0.082 R)
• M16: 29,467,190 km (0.042 R)
• M17: 30,975,286 km (0.068 R)
• M18: 34,914,348 km (0.073 R)
• M19: 37,524,531 km (0.081 R)
• M20: 40,384,244 km (0.104 R)

Planet 5 - Ice Giant

Semi-Major Axis: 15.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 425

Radius: 8

Gravity: 6.64 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 12.86 AU - 18.24 AU

Year: 22068 Days

Day: 15.2 Hours

Environment

Temp: -194 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 69,296,461 km

• M1: 99,483 km (0.052 R)
• M2: 581,637 km (0.116 R)
• M3: 836,252 km (0.09 R)
• M4: 1,167,761 km (0.116 R)
• M5: 1,586,186 km (0.042 R)
• M6: 2,062,805 km (0.067 R)
• M7: 4,267,728 km (0.036 R)
• M8: 6,238,381 km (0.072 R)
• M9: 11,928,934 km (0.03 R)
• M10: 13,254,521 km (0.053 R)
• M11: 15,196,002 km (0.035 R)
• M12: 16,993,271 km (0.091 R)
• M13: 17,733,631 km (0.107 R)
• M14: 21,098,236 km (0.099 R)
• M15: 22,340,647 km (0.108 R)
• M16: 27,018,273 km (0.105 R)
• M17: 28,026,263 km (0.086 R)
• M18: 28,367,795 km (0.093 R)
• M19: 29,175,325 km (0.068 R)
• M20: 34,346,026 km (0.06 R)
• M21: 37,558,789 km (0.111 R)
• M22: 47,255,275 km (0.05 R)
• M23: 48,389,526 km (0.068 R)
• M24: 49,210,818 km (0.045 R)
• M25: 54,158,169 km (0.1 R)
• M26: 57,207,273 km (0.059 R)
• M27: 59,053,311 km (0.088 R)
• M28: 62,475,661 km (0.12 R)
• M29: 62,863,868 km (0.119 R)
• M30: 64,432,850 km (0.066 R)
• M31: 67,444,854 km (0.102 R)

Kuiper Belt

Range: 30.5 - 55.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 507 - 10,861 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit