🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.73 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.35

Radius: 1.41

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.58 AU - 0.88 AU

Year: 226 Days

Day: 26.5 Hours

Environment

Temp: 156 °C

Axial Tilt: 35 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 3.18 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.29

Radius: 1.61

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 2.59 AU - 3.77 AU

Year: 2051 Days

Day: 28.1 Hours

Environment

Temp: -96 °C

Axial Tilt: 24 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 5.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 59.2

Radius: 8.5

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 5.5 AU - 5.74 AU

Year: 4818 Days

Day: 7.1 Hours

Environment

Temp: -154 °C

Axial Tilt: 15.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 77,982,887 km

• M1: 107,561 km (0.086 R)
• M2: 427,401 km (0.105 R)
• M3: 1,588,729 km (0.091 R)
• M4: 2,072,978 km (0.063 R)
• M5: 5,008,537 km (0.075 R)
• M6: 5,599,747 km (0.118 R)
• M7: 6,142,638 km (0.081 R)
• M8: 9,091,063 km (0.084 R)
• M9: 11,751,362 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 10.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 780.5

Radius: 14.1

Gravity: 3.93 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 8.37 AU - 12.39 AU

Year: 12094 Days

Day: 10.7 Hours

Environment

Temp: -182 °C

Axial Tilt: 121.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 77,982,887 km

• M1: 175,329 km (0.083 R)
• M2: 621,878 km (0.111 R)
• M3: 1,060,649 km (0.083 R)
• M4: 1,798,615 km (0.118 R)
• M5: 2,286,304 km (0.043 R)
• M6: 2,796,732 km (0.095 R)
• M7: 3,747,127 km (0.062 R)
• M8: 4,463,402 km (0.094 R)
• M9: 5,871,716 km (0.045 R)
• M10: 7,005,369 km (0.05 R)
• M11: 8,326,767 km (0.054 R)
• M12: 11,344,306 km (0.078 R)
• M13: 14,409,417 km (0.086 R)
• M14: 14,957,842 km (0.103 R)
• M15: 15,950,873 km (0.106 R)
• M16: 16,911,890 km (0.058 R)
• M17: 17,989,742 km (0.107 R)
• M18: 19,277,032 km (0.102 R)
• M19: 21,321,885 km (0.069 R)
• M20: 21,765,593 km (0.078 R)
• M21: 23,791,297 km (0.06 R)
• M22: 30,958,531 km (0.106 R)
• M23: 34,116,393 km (0.038 R)
• M24: 35,586,641 km (0.112 R)
• M25: 39,847,188 km (0.101 R)
• M26: 41,477,356 km (0.119 R)
• M27: 49,832,098 km (0.048 R)
• M28: 50,772,021 km (0.038 R)
• M29: 53,010,903 km (0.106 R)
• M30: 53,662,551 km (0.118 R)

Planet 5 - Ice Giant

Semi-Major Axis: 14.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 702.8

Radius: 4.6

Gravity: 33.21 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 13.81 AU - 15.69 AU

Year: 20487 Days

Day: 23.6 Hours

Environment

Temp: -186 °C

Axial Tilt: 21.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 77,982,887 km

• M1: 57,146 km (0.107 R)
• M2: 236,365 km (0.101 R)
• M3: 426,653 km (0.113 R)
• M4: 799,750 km (0.118 R)
• M5: 1,107,772 km (0.11 R)
• M6: 1,274,723 km (0.104 R)
• M7: 1,997,281 km (0.12 R)
• M8: 3,972,422 km (0.094 R)
• M9: 5,310,874 km (0.099 R)
• M10: 8,675,181 km (0.108 R)
• M11: 9,113,353 km (0.094 R)
• M12: 9,566,036 km (0.103 R)
• M13: 13,022,046 km (0.101 R)
• M14: 34,535,416 km (0.092 R)
• M15: 58,973,575 km (0.081 R)
• M16: 61,932,022 km (0.106 R)
• M17: 64,368,822 km (0.056 R)
• M18: 67,079,984 km (0.026 R)

Kuiper Belt

Range: 30.3 - 46.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 429 - 14,918 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit