🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.8 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.6

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 0.62 AU - 0.98 AU

Year: 253 Days

Day: 12.7 Hours

Environment

Temp: 189 °C

Axial Tilt: 13.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.16 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.77

Radius: 1.87

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 0.89 AU - 1.43 AU

Year: 441 Days

Day: 47.5 Hours

Environment

Temp: 20 °C

Axial Tilt: 33.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 5.07 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.23

Radius: 1.38

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 4.5 AU - 5.64 AU

Year: 4031 Days

Day: 43.9 Hours

Environment

Temp: -130 °C

Axial Tilt: 3.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Ice Giant

Semi-Major Axis: 19.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 262.6

Radius: 3.6

Gravity: 20.26 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 15.59 AU - 24.29 AU

Year: 31440 Days

Day: 20.7 Hours

Environment

Temp: -203 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 74,729,527 km

• M1: 44,879 km (0.069 R)
• M2: 161,416 km (0.115 R)
• M3: 380,278 km (0.069 R)
• M4: 726,597 km (0.108 R)
• M5: 1,240,017 km (0.12 R)
• M6: 1,498,522 km (0.119 R)
• M7: 2,753,199 km (0.118 R)
• M8: 3,558,335 km (0.094 R)
• M9: 4,273,712 km (0.112 R)
• M10: 5,154,544 km (0.091 R)
• M11: 5,859,300 km (0.027 R)
• M12: 9,268,785 km (0.116 R)
• M13: 9,720,421 km (0.087 R)
• M14: 10,010,192 km (0.073 R)
• M15: 11,100,760 km (0.093 R)
• M16: 14,391,764 km (0.101 R)
• M17: 14,767,853 km (0.092 R)
• M18: 15,228,016 km (0.081 R)
• M19: 17,248,186 km (0.118 R)
• M20: 17,587,174 km (0.097 R)
• M21: 18,542,207 km (0.059 R)
• M22: 21,031,965 km (0.105 R)
• M23: 24,793,304 km (0.115 R)
• M24: 26,214,484 km (0.093 R)
• M25: 35,214,591 km (0.054 R)
• M26: 40,773,199 km (0.107 R)
• M27: 44,627,738 km (0.045 R)
• M28: 49,564,916 km (0.118 R)
• M29: 55,036,159 km (0.079 R)
• M30: 56,696,995 km (0.075 R)
• M31: 57,822,419 km (0.111 R)
• M32: 58,771,618 km (0.092 R)
• M33: 60,506,355 km (0.116 R)
• M34: 63,674,090 km (0.073 R)
• M35: 65,503,522 km (0.117 R)
• M36: 72,731,194 km (0.103 R)

Kuiper Belt

Range: 31.1 - 47.1 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 368 - 17,333 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit