🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.87

Radius: 1.52

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 0.44 AU - 0.72 AU

Year: 290 Days

Day: 23.7 Hours

Environment

Temp: -136 °C

Axial Tilt: 35.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 806.1

Radius: 13.9

Gravity: 4.17 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 0.77 AU - 0.81 AU

Year: 461 Days

Day: 7.1 Hours

Environment

Temp: -136 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 66,901,548 km

• M1: 172,935 km (0.11 R)
• M2: 672,592 km (0.087 R)
• M3: 1,164,021 km (0.095 R)
• M4: 1,609,673 km (0.092 R)
• M5: 2,102,299 km (0.102 R)
• M6: 2,696,502 km (0.107 R)
• M7: 4,185,000 km (0.116 R)
• M8: 4,772,022 km (0.054 R)
• M9: 5,264,349 km (0.111 R)
• M10: 5,861,095 km (0.036 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 256.7

Radius: 12.3

Gravity: 1.7 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 1.06 AU - 1.44 AU

Year: 917 Days

Day: 6.6 Hours

Environment

Temp: -164 °C

Axial Tilt: 51.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 66,901,548 km

• M1: 153,039 km (0.076 R)
• M2: 563,834 km (0.084 R)
• M3: 1,153,250 km (0.12 R)
• M4: 1,615,507 km (0.076 R)
• M5: 2,147,029 km (0.114 R)
• M6: 3,122,856 km (0.101 R)
• M7: 3,516,148 km (0.062 R)
• M8: 3,915,126 km (0.059 R)
• M9: 4,601,481 km (0.083 R)
• M10: 5,213,935 km (0.087 R)
• M11: 5,898,345 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 145.7

Radius: 10.4

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 2.65 AU - 3.67 AU

Year: 3685 Days

Day: 14.3 Hours

Environment

Temp: -196 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 66,901,548 km

• M1: 129,701 km (0.067 R)
• M2: 879,785 km (0.105 R)
• M3: 1,232,686 km (0.088 R)
• M4: 1,721,423 km (0.102 R)
• M5: 2,988,367 km (0.043 R)
• M6: 3,405,745 km (0.109 R)
• M7: 7,289,306 km (0.116 R)
• M8: 9,761,710 km (0.11 R)
• M9: 10,406,028 km (0.1 R)
• M10: 12,159,913 km (0.116 R)
• M11: 12,866,015 km (0.095 R)
• M12: 14,575,919 km (0.111 R)

Planet 5 - Ice Giant

Semi-Major Axis: 9.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 326.1

Radius: 4.9

Gravity: 13.58 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 7.1 AU - 11.28 AU

Year: 18276 Days

Day: 20.3 Hours

Environment

Temp: -228 °C

Axial Tilt: 18.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 66,901,548 km

• M1: 76,295 km (0.106 R)
• M2: 238,459 km (0.062 R)
• M3: 585,975 km (0.041 R)
• M4: 872,754 km (0.101 R)
• M5: 2,199,837 km (0.093 R)
• M6: 2,823,361 km (0.037 R)
• M7: 3,401,556 km (0.056 R)
• M8: 4,854,002 km (0.066 R)
• M9: 5,019,009 km (0.095 R)
• M10: 5,325,235 km (0.089 R)
• M11: 5,571,922 km (0.111 R)
• M12: 5,752,786 km (0.054 R)
• M13: 5,937,539 km (0.06 R)
• M14: 8,194,074 km (0.102 R)
• M15: 8,618,782 km (0.107 R)
• M16: 10,356,212 km (0.096 R)
• M17: 10,629,976 km (0.09 R)
• M18: 11,249,311 km (0.104 R)
• M19: 14,101,694 km (0.084 R)
• M20: 16,127,847 km (0.103 R)
• M21: 22,070,623 km (0.088 R)
• M22: 25,873,999 km (0.072 R)
• M23: 29,105,911 km (0.101 R)
• M24: 39,193,745 km (0.096 R)
• M25: 41,759,797 km (0.069 R)
• M26: 42,036,254 km (0.096 R)
• M27: 44,868,291 km (0.047 R)
• M28: 46,924,663 km (0.105 R)
• M29: 47,223,560 km (0.119 R)
• M30: 47,523,653 km (0.116 R)
• M31: 50,125,759 km (0.038 R)

Planet 6 - Ice Giant

Semi-Major Axis: 10.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 388.1

Radius: 3.3

Gravity: 35.64 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 7.82 AU - 12.92 AU

Year: 21907 Days

Day: 15.2 Hours

Environment

Temp: -226 °C

Axial Tilt: 42.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 66,901,548 km

• M1: 47,572 km (0.111 R)
• M2: 201,957 km (0.117 R)
• M3: 575,952 km (0.105 R)
• M4: 897,737 km (0.054 R)
• M5: 2,465,672 km (0.042 R)
• M6: 4,007,129 km (0.096 R)
• M7: 4,482,551 km (0.076 R)
• M8: 5,468,999 km (0.051 R)
• M9: 6,380,648 km (0.12 R)
• M10: 10,165,026 km (0.083 R)
• M11: 11,348,046 km (0.118 R)
• M12: 13,772,728 km (0.116 R)
• M13: 17,079,738 km (0.106 R)
• M14: 20,787,073 km (0.06 R)
• M15: 23,369,581 km (0.047 R)
• M16: 23,568,995 km (0.093 R)
• M17: 25,414,883 km (0.089 R)
• M18: 28,701,548 km (0.042 R)
• M19: 30,923,226 km (0.076 R)
• M20: 31,163,630 km (0.084 R)
• M21: 31,405,081 km (0.109 R)
• M22: 37,040,882 km (0.063 R)
• M23: 45,760,044 km (0.099 R)
• M24: 46,072,255 km (0.042 R)
• M25: 50,758,109 km (0.083 R)
• M26: 62,202,196 km (0.099 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 387 - 12,874 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit