🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 84.5

Radius: 9.8

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 0.65 AU - 1.05 AU

Year: 514 Days

Day: 7.8 Hours

Environment

Temp: -147 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 42,322,605 km

• M1: 121,922 km (0.065 R)
• M2: 633,397 km (0.108 R)
• M3: 946,955 km (0.074 R)
• M4: 1,373,159 km (0.086 R)
• M5: 1,748,500 km (0.065 R)
• M6: 2,272,242 km (0.086 R)
• M7: 2,760,679 km (0.058 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 835.2

Radius: 13.4

Gravity: 4.65 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 0.77 AU - 1.07 AU

Year: 579 Days

Day: 11.1 Hours

Environment

Temp: -151 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 42,322,605 km

• M1: 166,652 km (0.075 R)
• M2: 601,084 km (0.092 R)
• M3: 1,053,917 km (0.094 R)
• M4: 1,547,590 km (0.118 R)
• M5: 2,312,035 km (0.083 R)
• M6: 2,759,931 km (0.115 R)
• M7: 3,656,022 km (0.116 R)
• M8: 4,135,783 km (0.116 R)
• M9: 4,786,533 km (0.108 R)
• M10: 5,797,067 km (0.07 R)
• M11: 6,432,708 km (0.117 R)
• M12: 7,114,576 km (0.089 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 130.7

Radius: 9.7

Gravity: 1.39 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 1.42 AU - 1.64 AU

Year: 1241 Days

Day: 10.3 Hours

Environment

Temp: -184 °C

Axial Tilt: 93.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 42,322,605 km

• M1: 120,576 km (0.118 R)
• M2: 448,644 km (0.105 R)
• M3: 984,354 km (0.107 R)
• M4: 1,471,295 km (0.079 R)
• M5: 2,069,088 km (0.118 R)
• M6: 2,932,866 km (0.054 R)
• M7: 3,236,849 km (0.077 R)
• M8: 5,121,483 km (0.117 R)
• M9: 6,089,681 km (0.087 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 829.2

Radius: 14.4

Gravity: 4 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 2.47 AU - 3.09 AU

Year: 3041 Days

Day: 7.8 Hours

Environment

Temp: -210 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 42,322,605 km

• M1: 179,069 km (0.096 R)
• M2: 640,279 km (0.102 R)
• M3: 1,213,239 km (0.118 R)
• M4: 1,901,539 km (0.092 R)
• M5: 2,908,781 km (0.03 R)
• M6: 3,533,801 km (0.041 R)
• M7: 4,559,294 km (0.071 R)
• M8: 5,031,575 km (0.093 R)
• M9: 8,522,142 km (0.079 R)
• M10: 10,602,450 km (0.049 R)
• M11: 11,182,142 km (0.054 R)
• M12: 12,405,254 km (0.112 R)
• M13: 13,002,598 km (0.048 R)
• M14: 13,959,277 km (0.11 R)
• M15: 14,707,116 km (0.096 R)
• M16: 15,324,507 km (0.107 R)
• M17: 16,337,434 km (0.083 R)
• M18: 16,888,253 km (0.08 R)
• M19: 17,680,224 km (0.104 R)
• M20: 19,338,367 km (0.086 R)
• M21: 19,892,777 km (0.07 R)
• M22: 20,904,657 km (0.104 R)
• M23: 22,894,159 km (0.079 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 54.5

Radius: 10.4

Gravity: 0.5 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 3.64 AU - 3.8 AU

Year: 4707 Days

Day: 8.9 Hours

Environment

Temp: -212 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 42,322,605 km

• M1: 129,402 km (0.103 R)
• M2: 623,225 km (0.09 R)
• M3: 1,104,032 km (0.064 R)
• M4: 3,457,356 km (0.101 R)
• M5: 5,677,838 km (0.1 R)
• M6: 6,123,938 km (0.096 R)
• M7: 7,061,319 km (0.069 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 854.5

Radius: 7.6

Gravity: 14.79 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 6.6 AU - 7.78 AU

Year: 12647 Days

Day: 19.5 Hours

Environment

Temp: -234 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 42,322,605 km

• M1: 95,294 km (0.115 R)
• M2: 365,168 km (0.075 R)
• M3: 636,689 km (0.105 R)
• M4: 948,451 km (0.075 R)
• M5: 1,241,363 km (0.095 R)
• M6: 1,489,247 km (0.044 R)
• M7: 1,977,684 km (0.088 R)
• M8: 2,220,631 km (0.118 R)
• M9: 2,611,829 km (0.069 R)
• M10: 3,097,125 km (0.094 R)
• M11: 4,186,646 km (0.063 R)
• M12: 6,074,571 km (0.085 R)
• M13: 6,430,165 km (0.038 R)
• M14: 8,963,306 km (0.104 R)
• M15: 9,581,893 km (0.08 R)
• M16: 10,009,743 km (0.066 R)
• M17: 13,703,165 km (0.087 R)
• M18: 14,874,815 km (0.106 R)
• M19: 17,025,584 km (0.062 R)
• M20: 19,887,391 km (0.096 R)
• M21: 20,938,167 km (0.098 R)
• M22: 23,823,162 km (0.084 R)
• M23: 25,007,827 km (0.115 R)
• M24: 26,127,717 km (0.039 R)
• M25: 26,647,570 km (0.042 R)
• M26: 29,463,301 km (0.093 R)
• M27: 30,942,824 km (0.094 R)
• M28: 31,877,511 km (0.038 R)
• M29: 39,089,624 km (0.12 R)
• M30: 42,569,420 km (0.049 R)
• M31: 48,557,524 km (0.037 R)
• M32: 49,185,536 km (0.07 R)
• M33: 54,574,949 km (0.084 R)
• M34: 56,282,758 km (0.071 R)
• M35: 58,378,624 km (0.07 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 391.7

Radius: 5.3

Gravity: 13.94 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 7.11 AU - 8.49 AU

Year: 14291 Days

Day: 22.1 Hours

Environment

Temp: -222 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 42,322,605 km

• M1: 85,570 km (0.093 R)
• M2: 257,308 km (0.115 R)
• M3: 679,324 km (0.055 R)
• M4: 1,172,548 km (0.086 R)
• M5: 1,656,647 km (0.11 R)
• M6: 2,965,179 km (0.07 R)
• M7: 5,069,273 km (0.109 R)
• M8: 8,777,356 km (0.026 R)
• M9: 9,158,082 km (0.058 R)
• M10: 9,800,157 km (0.108 R)
• M11: 11,791,753 km (0.096 R)
• M12: 12,670,940 km (0.068 R)
• M13: 17,135,389 km (0.067 R)
• M14: 18,108,373 km (0.089 R)
• M15: 19,196,848 km (0.032 R)
• M16: 21,933,890 km (0.09 R)
• M17: 23,169,718 km (0.115 R)
• M18: 25,204,548 km (0.049 R)
• M19: 30,051,220 km (0.071 R)
• M20: 33,261,441 km (0.103 R)
• M21: 45,366,452 km (0.12 R)
• M22: 48,979,240 km (0.077 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 145.4

Radius: 6.8

Gravity: 3.14 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 8.48 AU - 9.72 AU

Year: 18008 Days

Day: 24.6 Hours

Environment

Temp: -221 °C

Axial Tilt: 41.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 42,322,605 km

• M1: 89,609 km (0.056 R)
• M2: 698,173 km (0.039 R)
• M3: 1,259,614 km (0.032 R)
• M4: 1,547,889 km (0.11 R)
• M5: 3,016,940 km (0.05 R)
• M6: 4,115,886 km (0.037 R)
• M7: 4,814,359 km (0.109 R)
• M8: 12,959,664 km (0.07 R)
• M9: 16,247,226 km (0.101 R)
• M10: 35,391,266 km (0.08 R)
• M11: 38,634,099 km (0.106 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 206 - 18,534 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit