🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 261.2

Radius: 11.5

Gravity: 1.98 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 0.55 AU - 0.65 AU

Year: 310 Days

Day: 7.1 Hours

Environment

Temp: -154 °C

Axial Tilt: 6.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 71,861,436 km

• M1: 143,016 km (0.081 R)
• M2: 717,023 km (0.103 R)
• M3: 1,153,699 km (0.074 R)
• M4: 1,794,277 km (0.07 R)
• M5: 2,693,809 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 210.4

Radius: 11

Gravity: 1.74 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 0.93 AU - 1.13 AU

Year: 697 Days

Day: 8.1 Hours

Environment

Temp: -182 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 71,861,436 km

• M1: 137,032 km (0.06 R)
• M2: 521,349 km (0.117 R)
• M3: 1,173,446 km (0.091 R)
• M4: 2,064,600 km (0.11 R)
• M5: 2,490,655 km (0.054 R)
• M6: 2,996,296 km (0.104 R)
• M7: 3,463,340 km (0.096 R)
• M8: 4,268,775 km (0.036 R)
• M9: 4,877,040 km (0.105 R)
• M10: 5,366,524 km (0.057 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 573.2

Radius: 13.3

Gravity: 3.24 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 1.82 AU - 2.88 AU

Year: 2402 Days

Day: 7.9 Hours

Environment

Temp: -204 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 71,861,436 km

• M1: 165,455 km (0.096 R)
• M2: 850,913 km (0.115 R)
• M3: 1,588,580 km (0.105 R)
• M4: 2,030,043 km (0.118 R)
• M5: 2,798,228 km (0.095 R)
• M6: 3,218,000 km (0.066 R)
• M7: 3,770,764 km (0.104 R)
• M8: 4,246,336 km (0.118 R)
• M9: 5,435,788 km (0.089 R)
• M10: 8,307,319 km (0.096 R)
• M11: 8,885,665 km (0.101 R)
• M12: 10,340,205 km (0.093 R)
• M13: 10,858,711 km (0.074 R)
• M14: 14,664,032 km (0.066 R)
• M15: 15,177,302 km (0.107 R)
• M16: 15,896,569 km (0.11 R)
• M17: 16,438,412 km (0.085 R)
• M18: 16,941,660 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 511.2

Radius: 9.5

Gravity: 5.66 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 2.17 AU - 3.55 AU

Year: 3225 Days

Day: 11.7 Hours

Environment

Temp: -218 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 71,861,436 km

• M1: 130,150 km (0.068 R)
• M2: 428,299 km (0.076 R)
• M3: 1,082,490 km (0.084 R)
• M4: 1,667,867 km (0.109 R)
• M5: 2,008,052 km (0.109 R)
• M6: 2,705,477 km (0.09 R)
• M7: 3,784,826 km (0.081 R)
• M8: 4,084,770 km (0.056 R)
• M9: 5,010,332 km (0.106 R)
• M10: 5,752,936 km (0.09 R)
• M11: 6,342,800 km (0.099 R)
• M12: 12,297,394 km (0.072 R)
• M13: 12,780,296 km (0.102 R)
• M14: 17,880,835 km (0.117 R)
• M15: 19,077,319 km (0.069 R)
• M16: 20,448,084 km (0.102 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 423.6

Radius: 7.5

Gravity: 7.53 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 6.45 AU - 8.31 AU

Year: 13369 Days

Day: 21.2 Hours

Environment

Temp: -225 °C

Axial Tilt: 76.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 71,861,436 km

• M1: 152,141 km (0.12 R)
• M2: 519,404 km (0.104 R)
• M3: 794,365 km (0.074 R)
• M4: 1,238,371 km (0.069 R)
• M5: 1,887,177 km (0.094 R)
• M6: 2,177,995 km (0.11 R)
• M7: 4,393,839 km (0.072 R)
• M8: 8,368,206 km (0.044 R)
• M9: 12,462,251 km (0.114 R)
• M10: 13,740,864 km (0.071 R)
• M11: 16,771,118 km (0.1 R)
• M12: 22,152,602 km (0.063 R)
• M13: 23,748,812 km (0.062 R)
• M14: 31,228,705 km (0.116 R)
• M15: 41,048,609 km (0.1 R)
• M16: 45,380,065 km (0.049 R)
• M17: 49,116,123 km (0.07 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 858.7

Radius: 8

Gravity: 13.42 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 7.25 AU - 7.69 AU

Year: 13615 Days

Day: 16.9 Hours

Environment

Temp: -231 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 71,861,436 km

• M1: 100,530 km (0.052 R)
• M2: 369,058 km (0.045 R)
• M3: 840,890 km (0.096 R)
• M4: 1,347,129 km (0.071 R)
• M5: 2,080,757 km (0.055 R)
• M6: 4,248,280 km (0.093 R)
• M7: 4,662,966 km (0.092 R)
• M8: 5,536,019 km (0.045 R)
• M9: 6,722,779 km (0.116 R)
• M10: 8,707,494 km (0.085 R)
• M11: 10,417,248 km (0.094 R)
• M12: 11,291,198 km (0.112 R)
• M13: 12,595,692 km (0.081 R)
• M14: 14,844,148 km (0.104 R)
• M15: 19,681,096 km (0.103 R)
• M16: 22,882,939 km (0.108 R)
• M17: 24,556,490 km (0.112 R)
• M18: 26,310,226 km (0.095 R)
• M19: 26,628,122 km (0.03 R)
• M20: 26,948,560 km (0.062 R)
• M21: 28,589,649 km (0.108 R)
• M22: 30,529,036 km (0.065 R)
• M23: 31,829,640 km (0.086 R)
• M24: 39,997,534 km (0.104 R)
• M25: 40,841,415 km (0.074 R)
• M26: 41,840,879 km (0.117 R)
• M27: 46,155,730 km (0.056 R)
• M28: 47,240,016 km (0.064 R)
• M29: 48,499,779 km (0.114 R)
• M30: 54,104,613 km (0.061 R)
• M31: 57,417,159 km (0.106 R)
• M32: 63,108,311 km (0.104 R)

Asteroid Belt

Center: 8.86 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Ice Giant

Semi-Major Axis: 10.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 482

Radius: 6.4

Gravity: 11.77 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 8.42 AU - 12.08 AU

Year: 21883 Days

Day: 16.6 Hours

Environment

Temp: -238 °C

Axial Tilt: 43.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 71,861,436 km

• M1: 79,586 km (0.103 R)
• M2: 312,360 km (0.083 R)
• M3: 1,122,283 km (0.115 R)
• M4: 1,848,431 km (0.116 R)
• M5: 2,076,418 km (0.092 R)
• M6: 2,659,252 km (0.099 R)
• M7: 4,812,863 km (0.11 R)
• M8: 5,590,024 km (0.06 R)
• M9: 6,620,753 km (0.101 R)
• M10: 8,268,723 km (0.096 R)
• M11: 18,546,097 km (0.072 R)
• M12: 22,950,109 km (0.112 R)
• M13: 24,281,081 km (0.039 R)
• M14: 25,554,607 km (0.067 R)
• M15: 32,342,312 km (0.079 R)
• M16: 37,386,004 km (0.113 R)
• M17: 48,664,187 km (0.069 R)
• M18: 51,368,917 km (0.093 R)
• M19: 58,004,330 km (0.042 R)
• M20: 65,188,469 km (0.104 R)
• M21: 67,847,122 km (0.09 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: 170 - 12,648 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit