🌌 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 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 450.2

Radius: 12.7

Gravity: 2.79 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 0.51 AU - 0.63 AU

Year: 302 Days

Day: 14.4 Hours

Environment

Temp: -141 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 86,857,090 km

• M1: 157,975 km (0.102 R)
• M2: 582,534 km (0.058 R)
• M3: 1,220,719 km (0.094 R)
• M4: 1,670,410 km (0.105 R)
• M5: 2,239,480 km (0.112 R)
• M6: 3,087,850 km (0.081 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 88.3

Radius: 9.1

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 0.91 AU - 1.07 AU

Year: 692 Days

Day: 9.4 Hours

Environment

Temp: -181 °C

Axial Tilt: 43.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 86,857,090 km

• M1: 113,096 km (0.098 R)
• M2: 424,409 km (0.1 R)
• M3: 766,390 km (0.041 R)
• M4: 1,173,446 km (0.112 R)
• M5: 1,676,543 km (0.089 R)
• M6: 2,222,875 km (0.109 R)
• M7: 2,902,199 km (0.101 R)
• M8: 3,953,273 km (0.076 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 618.4

Radius: 12.6

Gravity: 3.9 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 1.55 AU - 1.73 AU

Year: 1476 Days

Day: 10.4 Hours

Environment

Temp: -194 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 86,857,090 km

• M1: 156,629 km (0.105 R)
• M2: 571,613 km (0.104 R)
• M3: 993,330 km (0.12 R)
• M4: 1,441,974 km (0.073 R)
• M5: 2,413,762 km (0.116 R)
• M6: 2,863,154 km (0.088 R)
• M7: 3,383,754 km (0.07 R)
• M8: 4,283,585 km (0.107 R)
• M9: 5,089,020 km (0.05 R)
• M10: 5,680,231 km (0.072 R)
• M11: 6,340,556 km (0.09 R)
• M12: 6,975,599 km (0.097 R)
• M13: 7,897,122 km (0.105 R)
• M14: 8,487,884 km (0.067 R)
• M15: 10,505,660 km (0.091 R)
• M16: 10,979,137 km (0.057 R)
• M17: 11,751,810 km (0.101 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 795.1

Radius: 11.2

Gravity: 6.34 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 2.37 AU - 2.89 AU

Year: 2998 Days

Day: 7.1 Hours

Environment

Temp: -217 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 86,857,090 km

• M1: 139,276 km (0.039 R)
• M2: 533,466 km (0.114 R)
• M3: 1,028,485 km (0.115 R)
• M4: 1,399,189 km (0.046 R)
• M5: 1,959,882 km (0.094 R)
• M6: 2,512,496 km (0.025 R)
• M7: 3,061,969 km (0.115 R)
• M8: 3,670,533 km (0.093 R)
• M9: 4,839,342 km (0.113 R)
• M10: 5,588,079 km (0.035 R)
• M11: 6,615,966 km (0.092 R)
• M12: 7,667,639 km (0.073 R)
• M13: 8,233,717 km (0.051 R)
• M14: 9,043,790 km (0.086 R)
• M15: 9,829,029 km (0.09 R)
• M16: 11,322,614 km (0.11 R)
• M17: 12,324,172 km (0.078 R)
• M18: 13,669,954 km (0.12 R)
• M19: 14,106,930 km (0.069 R)
• M20: 14,603,295 km (0.115 R)
• M21: 15,631,182 km (0.12 R)
• M22: 18,944,775 km (0.111 R)
• M23: 20,229,372 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 361.3

Radius: 11.5

Gravity: 2.73 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 2.76 AU - 4.08 AU

Year: 4446 Days

Day: 14.9 Hours

Environment

Temp: -226 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 86,857,090 km

• M1: 145,858 km (0.114 R)
• M2: 837,000 km (0.118 R)
• M3: 2,268,502 km (0.12 R)
• M4: 3,064,363 km (0.102 R)
• M5: 3,633,732 km (0.095 R)
• M6: 10,780,621 km (0.108 R)
• M7: 11,534,295 km (0.068 R)
• M8: 12,412,435 km (0.111 R)
• M9: 12,914,036 km (0.087 R)
• M10: 13,715,881 km (0.097 R)
• M11: 14,701,432 km (0.101 R)
• M12: 19,728,518 km (0.106 R)
• M13: 21,696,329 km (0.109 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 653.3

Radius: 14.1

Gravity: 3.29 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 3.26 AU - 3.86 AU

Year: 4722 Days

Day: 11.1 Hours

Environment

Temp: -216 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 86,857,090 km

• M1: 176,376 km (0.104 R)
• M2: 641,326 km (0.083 R)
• M3: 1,342,940 km (0.117 R)
• M4: 2,178,295 km (0.095 R)
• M5: 2,836,076 km (0.1 R)
• M6: 4,652,494 km (0.107 R)
• M7: 5,985,261 km (0.074 R)
• M8: 7,050,697 km (0.115 R)
• M9: 7,559,330 km (0.114 R)
• M10: 8,499,253 km (0.119 R)
• M11: 9,803,148 km (0.083 R)
• M12: 12,656,877 km (0.06 R)
• M13: 13,359,389 km (0.104 R)
• M14: 15,118,660 km (0.052 R)
• M15: 15,624,151 km (0.077 R)
• M16: 17,148,554 km (0.081 R)
• M17: 20,152,479 km (0.118 R)
• M18: 22,388,219 km (0.09 R)
• M19: 24,323,118 km (0.106 R)
• M20: 27,514,040 km (0.09 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 631.6

Radius: 3.2

Gravity: 61.68 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 4.5 AU - 7.48 AU

Year: 10305 Days

Day: 17.7 Hours

Environment

Temp: -217 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 86,857,090 km

• M1: 39,793 km (0.093 R)
• M2: 167,550 km (0.097 R)
• M3: 294,708 km (0.094 R)
• M4: 574,306 km (0.117 R)
• M5: 2,904,443 km (0.093 R)
• M6: 3,664,849 km (0.051 R)
• M7: 3,794,700 km (0.115 R)
• M8: 4,945,855 km (0.058 R)
• M9: 5,104,579 km (0.098 R)
• M10: 6,765,414 km (0.113 R)
• M11: 7,080,018 km (0.08 R)
• M12: 7,570,101 km (0.101 R)
• M13: 8,481,451 km (0.103 R)
• M14: 9,128,163 km (0.089 R)
• M15: 9,366,921 km (0.119 R)
• M16: 10,057,614 km (0.095 R)
• M17: 10,209,905 km (0.119 R)
• M18: 11,650,533 km (0.112 R)
• M19: 14,861,800 km (0.099 R)
• M20: 15,059,419 km (0.095 R)
• M21: 15,325,703 km (0.1 R)
• M22: 16,775,157 km (0.093 R)
• M23: 17,938,879 km (0.082 R)
• M24: 18,162,977 km (0.104 R)
• M25: 20,425,944 km (0.112 R)
• M26: 22,957,289 km (0.094 R)
• M27: 24,025,867 km (0.054 R)
• M28: 25,127,057 km (0.108 R)
• M29: 27,727,068 km (0.11 R)
• M30: 29,040,387 km (0.082 R)
• M31: 33,340,877 km (0.09 R)
• M32: 38,664,467 km (0.094 R)
• M33: 39,666,623 km (0.084 R)
• M34: 40,814,488 km (0.095 R)
• M35: 44,663,791 km (0.095 R)
• M36: 47,454,838 km (0.06 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 855.3

Radius: 4.4

Gravity: 44.18 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 7.88 AU - 11.88 AU

Year: 21829 Days

Day: 20.4 Hours

Environment

Temp: -228 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 86,857,090 km

• M1: 54,753 km (0.071 R)
• M2: 263,591 km (0.112 R)
• M3: 728,542 km (0.11 R)
• M4: 893,548 km (0.073 R)
• M5: 1,043,445 km (0.064 R)
• M6: 2,106,787 km (0.085 R)
• M7: 2,541,817 km (0.089 R)
• M8: 2,899,057 km (0.068 R)
• M9: 3,347,402 km (0.067 R)
• M10: 3,496,551 km (0.054 R)
• M11: 4,451,584 km (0.107 R)
• M12: 4,743,000 km (0.07 R)
• M13: 6,169,566 km (0.104 R)
• M14: 9,896,348 km (0.115 R)
• M15: 14,261,464 km (0.045 R)
• M16: 15,627,592 km (0.092 R)
• M17: 16,990,877 km (0.102 R)
• M18: 23,673,414 km (0.105 R)
• M19: 34,661,827 km (0.082 R)
• M20: 39,068,531 km (0.119 R)
• M21: 40,930,875 km (0.107 R)
• M22: 42,044,182 km (0.058 R)
• M23: 60,222,119 km (0.074 R)
• M24: 68,310,128 km (0.049 R)
• M25: 82,505,021 km (0.101 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: 385 - 18,557 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit