🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 844.8

Radius: 8.4

Gravity: 11.97 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 0.54 AU - 0.84 AU

Year: 370 Days

Day: 9.3 Hours

Environment

Temp: -142 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 40,436,899 km

• M1: 105,616 km (0.108 R)
• M2: 550,071 km (0.108 R)
• M3: 883,375 km (0.08 R)
• M4: 1,180,926 km (0.085 R)
• M5: 1,587,383 km (0.09 R)
• M6: 1,985,762 km (0.089 R)
• M7: 2,440,390 km (0.086 R)
• M8: 3,104,754 km (0.056 R)
• M9: 3,558,185 km (0.078 R)
• M10: 3,871,593 km (0.03 R)
• M11: 4,641,124 km (0.051 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 91.1

Radius: 9.8

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 0.69 AU - 0.71 AU

Year: 378 Days

Day: 7.6 Hours

Environment

Temp: -138 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 40,436,899 km

• M1: 121,922 km (0.104 R)
• M2: 534,364 km (0.062 R)
• M3: 893,099 km (0.096 R)
• M4: 2,140,147 km (0.119 R)
• M5: 2,518,929 km (0.035 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 344.7

Radius: 9.8

Gravity: 3.59 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.71 AU - 1.15 AU

Year: 579 Days

Day: 12.8 Hours

Environment

Temp: -153 °C

Axial Tilt: 15.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 40,436,899 km

• M1: 122,072 km (0.12 R)
• M2: 559,795 km (0.039 R)
• M3: 1,006,195 km (0.115 R)
• M4: 1,316,162 km (0.086 R)
• M5: 1,749,397 km (0.069 R)
• M6: 2,477,939 km (0.098 R)
• M7: 3,046,112 km (0.108 R)
• M8: 3,420,107 km (0.118 R)
• M9: 3,824,918 km (0.075 R)
• M10: 4,955,579 km (0.116 R)
• M11: 5,426,513 km (0.059 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 871.6

Radius: 11.1

Gravity: 7.07 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 1.12 AU - 1.76 AU

Year: 1116 Days

Day: 6.4 Hours

Environment

Temp: -180 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 40,436,899 km

• M1: 139,425 km (0.042 R)
• M2: 495,917 km (0.082 R)
• M3: 911,051 km (0.109 R)
• M4: 1,670,559 km (0.113 R)
• M5: 2,053,829 km (0.064 R)
• M6: 3,213,811 km (0.085 R)
• M7: 3,637,472 km (0.088 R)
• M8: 3,996,507 km (0.097 R)
• M9: 4,433,183 km (0.071 R)
• M10: 4,921,172 km (0.079 R)
• M11: 5,320,598 km (0.088 R)
• M12: 5,916,446 km (0.064 R)
• M13: 6,868,637 km (0.12 R)
• M14: 7,497,696 km (0.111 R)
• M15: 7,866,454 km (0.087 R)
• M16: 8,583,776 km (0.101 R)
• M17: 11,201,440 km (0.026 R)
• M18: 11,895,574 km (0.099 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 704

Radius: 15

Gravity: 3.13 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 3.36 AU - 3.96 AU

Year: 4521 Days

Day: 8.4 Hours

Environment

Temp: -207 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 40,436,899 km

• M1: 190,588 km (0.033 R)
• M2: 1,038,060 km (0.111 R)
• M3: 1,703,321 km (0.065 R)
• M4: 4,030,615 km (0.069 R)
• M5: 5,346,478 km (0.119 R)
• M6: 6,424,032 km (0.083 R)
• M7: 8,068,561 km (0.113 R)
• M8: 9,813,022 km (0.108 R)
• M9: 10,403,934 km (0.09 R)
• M10: 11,063,361 km (0.115 R)
• M11: 11,610,889 km (0.054 R)
• M12: 12,417,670 km (0.075 R)
• M13: 16,607,458 km (0.031 R)
• M14: 17,570,868 km (0.115 R)
• M15: 18,254,531 km (0.117 R)
• M16: 19,874,526 km (0.119 R)
• M17: 27,569,990 km (0.108 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 132.3

Radius: 11

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 4.32 AU - 5.24 AU

Year: 6748 Days

Day: 7.6 Hours

Environment

Temp: -213 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 40,436,899 km

• M1: 140,772 km (0.053 R)
• M2: 792,420 km (0.07 R)
• M3: 1,402,779 km (0.07 R)
• M4: 1,977,983 km (0.093 R)
• M5: 2,768,309 km (0.079 R)
• M6: 3,679,659 km (0.085 R)
• M7: 6,088,185 km (0.106 R)
• M8: 6,449,613 km (0.029 R)
• M9: 8,477,711 km (0.099 R)
• M10: 10,618,457 km (0.107 R)
• M11: 11,061,865 km (0.118 R)
• M12: 12,072,249 km (0.069 R)
• M13: 12,869,606 km (0.073 R)
• M14: 13,749,092 km (0.037 R)
• M15: 15,834,785 km (0.118 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 702.7

Radius: 3.8

Gravity: 48.66 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 7.67 AU - 8.63 AU

Year: 15023 Days

Day: 16.9 Hours

Environment

Temp: -232 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 40,436,899 km

• M1: 203,154 km (0.109 R)
• M2: 321,635 km (0.035 R)
• M3: 461,659 km (0.118 R)
• M4: 1,280,558 km (0.103 R)
• M5: 1,862,793 km (0.108 R)
• M6: 1,990,250 km (0.076 R)
• M7: 3,103,109 km (0.086 R)
• M8: 5,976,585 km (0.068 R)
• M9: 8,956,574 km (0.113 R)
• M10: 10,996,939 km (0.037 R)
• M11: 12,219,304 km (0.065 R)
• M12: 12,346,312 km (0.104 R)
• M13: 20,592,296 km (0.063 R)
• M14: 22,249,841 km (0.069 R)
• M15: 23,697,500 km (0.07 R)
• M16: 36,671,824 km (0.1 R)
• M17: 39,790,042 km (0.089 R)
• M18: 42,205,299 km (0.081 R)
• M19: 44,867,094 km (0.067 R)
• M20: 61,342,457 km (0.11 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 657.7

Radius: 3

Gravity: 73.08 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 9 AU - 11.9 AU

Year: 21812 Days

Day: 20.3 Hours

Environment

Temp: -237 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 40,436,899 km

• M1: 37,250 km (0.102 R)
• M2: 146,008 km (0.12 R)
• M3: 617,690 km (0.089 R)
• M4: 967,150 km (0.093 R)
• M5: 1,654,702 km (0.094 R)
• M6: 2,057,420 km (0.106 R)
• M7: 9,332,514 km (0.073 R)
• M8: 11,409,381 km (0.071 R)
• M9: 12,554,852 km (0.091 R)
• M10: 18,259,019 km (0.11 R)
• M11: 21,767,837 km (0.113 R)
• M12: 27,773,892 km (0.088 R)
• M13: 30,330,819 km (0.071 R)
• M14: 30,582,143 km (0.1 R)
• M15: 35,626,583 km (0.062 R)
• M16: 41,351,843 km (0.076 R)
• M17: 45,326,958 km (0.12 R)
• M18: 45,655,475 km (0.065 R)
• M19: 48,000,272 km (0.107 R)
• M20: 50,423,907 km (0.073 R)
• M21: 54,025,925 km (0.068 R)
• M22: 74,627,795 km (0.083 R)

Planet 9 - Ice Giant

Semi-Major Axis: 11.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 69.1

Radius: 7.9

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 11.1 AU - 11.42 AU

Year: 24396 Days

Day: 22.1 Hours

Environment

Temp: -235 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 40,436,899 km

• M1: 139,874 km (0.079 R)
• M2: 706,102 km (0.041 R)
• M3: 1,082,041 km (0.07 R)
• M4: 1,726,060 km (0.075 R)
• M5: 2,311,736 km (0.108 R)
• M6: 3,823,273 km (0.108 R)
• M7: 4,233,021 km (0.044 R)
• M8: 4,700,215 km (0.103 R)
• M9: 5,935,445 km (0.077 R)
• M10: 7,069,098 km (0.085 R)
• M11: 8,681,314 km (0.092 R)
• M12: 10,089,030 km (0.117 R)
• M13: 13,465,454 km (0.068 R)
• M14: 16,115,281 km (0.076 R)
• M15: 20,906,901 km (0.114 R)
• M16: 30,296,262 km (0.069 R)
• M17: 36,686,933 km (0.12 R)
• M18: 37,601,724 km (0.111 R)
• M19: 38,766,343 km (0.045 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 529 - 13,568 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit