🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.73 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 142.3

Radius: 12.5

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 1.39 AU - 1.53 AU

Year: 1240 Days

Day: 7.8 Hours

Environment

Temp: -195 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 36,682,016 km

• M1: 155,582 km (0.053 R)
• M2: 558,748 km (0.115 R)
• M3: 987,795 km (0.089 R)
• M4: 1,580,651 km (0.088 R)
• M5: 2,158,398 km (0.116 R)
• M6: 2,753,798 km (0.088 R)
• M7: 4,276,704 km (0.041 R)
• M8: 4,796,407 km (0.117 R)
• M9: 5,375,201 km (0.119 R)
• M10: 6,000,221 km (0.095 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 720.7

Radius: 14.2

Gravity: 3.57 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 1.31 AU - 1.69 AU

Year: 1291 Days

Day: 14.9 Hours

Environment

Temp: -191 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 36,682,016 km

• M1: 176,525 km (0.036 R)
• M2: 877,242 km (0.083 R)
• M3: 1,500,915 km (0.085 R)
• M4: 1,953,299 km (0.059 R)
• M5: 2,462,531 km (0.054 R)
• M6: 2,977,297 km (0.111 R)
• M7: 3,456,160 km (0.062 R)
• M8: 4,105,863 km (0.076 R)
• M9: 4,759,606 km (0.065 R)
• M10: 5,503,107 km (0.045 R)
• M11: 6,138,898 km (0.115 R)
• M12: 6,581,858 km (0.091 R)
• M13: 7,071,192 km (0.041 R)
• M14: 8,206,490 km (0.112 R)
• M15: 9,038,554 km (0.036 R)
• M16: 12,345,115 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 961.8

Radius: 11.8

Gravity: 6.91 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 1.46 AU - 1.58 AU

Year: 1317 Days

Day: 13.4 Hours

Environment

Temp: -192 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 36,682,016 km

• M1: 147,504 km (0.093 R)
• M2: 649,853 km (0.06 R)
• M3: 1,158,187 km (0.101 R)
• M4: 2,228,559 km (0.032 R)
• M5: 2,652,969 km (0.115 R)
• M6: 3,146,342 km (0.079 R)
• M7: 3,818,934 km (0.086 R)
• M8: 4,882,874 km (0.103 R)
• M9: 5,451,496 km (0.079 R)
• M10: 6,111,073 km (0.115 R)
• M11: 6,671,317 km (0.053 R)
• M12: 7,399,559 km (0.1 R)
• M13: 8,324,972 km (0.056 R)
• M14: 10,304,002 km (0.092 R)
• M15: 10,713,900 km (0.051 R)
• M16: 11,934,769 km (0.095 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 930.4

Radius: 9.1

Gravity: 11.24 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 2.64 AU - 4.26 AU

Year: 4504 Days

Day: 8.4 Hours

Environment

Temp: -220 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 36,682,016 km

• M1: 113,246 km (0.034 R)
• M2: 453,282 km (0.094 R)
• M3: 952,340 km (0.069 R)
• M4: 1,791,734 km (0.08 R)
• M5: 2,286,753 km (0.104 R)
• M6: 2,778,780 km (0.096 R)
• M7: 3,118,667 km (0.119 R)
• M8: 3,658,865 km (0.04 R)
• M9: 4,115,886 km (0.062 R)
• M10: 4,408,051 km (0.056 R)
• M11: 6,826,300 km (0.12 R)
• M12: 7,958,756 km (0.066 R)
• M13: 9,586,830 km (0.104 R)
• M14: 10,367,432 km (0.106 R)
• M15: 14,412,857 km (0.069 R)
• M16: 14,748,854 km (0.041 R)
• M17: 16,691,233 km (0.106 R)
• M18: 20,298,037 km (0.033 R)
• M19: 22,619,348 km (0.092 R)
• M20: 23,999,986 km (0.074 R)
• M21: 27,013,037 km (0.079 R)
• M22: 29,634,291 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 867.2

Radius: 13.9

Gravity: 4.49 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 3.51 AU - 4.71 AU

Year: 5857 Days

Day: 8 Hours

Environment

Temp: -223 °C

Axial Tilt: 172.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 36,682,016 km

• M1: 172,935 km (0.099 R)
• M2: 717,322 km (0.077 R)
• M3: 1,323,642 km (0.072 R)
• M4: 1,900,791 km (0.117 R)
• M5: 2,537,329 km (0.059 R)
• M6: 2,985,375 km (0.117 R)
• M7: 3,995,759 km (0.085 R)
• M8: 4,661,619 km (0.114 R)
• M9: 5,281,852 km (0.093 R)
• M10: 7,630,090 km (0.073 R)
• M11: 9,120,234 km (0.086 R)
• M12: 10,185,820 km (0.099 R)
• M13: 13,048,076 km (0.116 R)
• M14: 13,713,038 km (0.091 R)
• M15: 15,474,404 km (0.103 R)
• M16: 16,858,932 km (0.086 R)
• M17: 17,382,375 km (0.092 R)
• M18: 22,515,527 km (0.12 R)
• M19: 25,898,832 km (0.08 R)
• M20: 30,562,995 km (0.071 R)
• M21: 31,736,739 km (0.111 R)
• M22: 34,278,407 km (0.087 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 567.6

Radius: 8.9

Gravity: 7.17 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 4.79 AU - 5.95 AU

Year: 8747 Days

Day: 5.2 Hours

Environment

Temp: -226 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 36,682,016 km

• M1: 114,742 km (0.058 R)
• M2: 449,242 km (0.1 R)
• M3: 1,357,900 km (0.079 R)
• M4: 2,259,077 km (0.09 R)
• M5: 3,330,497 km (0.073 R)
• M6: 3,979,004 km (0.082 R)
• M7: 5,091,564 km (0.112 R)
• M8: 9,524,148 km (0.111 R)
• M9: 10,185,072 km (0.102 R)
• M10: 11,284,915 km (0.097 R)
• M11: 14,996,139 km (0.091 R)
• M12: 16,752,119 km (0.095 R)
• M13: 19,005,661 km (0.061 R)
• M14: 22,097,550 km (0.076 R)
• M15: 23,422,987 km (0.111 R)
• M16: 26,049,926 km (0.117 R)
• M17: 27,622,499 km (0.089 R)
• M18: 28,480,143 km (0.115 R)
• M19: 30,048,677 km (0.111 R)
• M20: 31,057,715 km (0.095 R)
• M21: 38,526,688 km (0.098 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 708

Radius: 3.5

Gravity: 57.8 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 5.88 AU - 8.92 AU

Year: 14150 Days

Day: 23.2 Hours

Environment

Temp: -232 °C

Axial Tilt: 1.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 36,682,016 km

• M1: 45,328 km (0.097 R)
• M2: 197,020 km (0.106 R)
• M3: 462,257 km (0.104 R)
• M4: 941,120 km (0.111 R)
• M5: 4,128,452 km (0.087 R)
• M6: 4,663,414 km (0.102 R)
• M7: 6,544,009 km (0.111 R)
• M8: 9,079,544 km (0.084 R)
• M9: 12,771,918 km (0.092 R)
• M10: 13,966,457 km (0.086 R)
• M11: 14,803,009 km (0.12 R)
• M12: 20,095,482 km (0.116 R)
• M13: 21,250,378 km (0.077 R)
• M14: 30,597,701 km (0.093 R)
• M15: 32,123,151 km (0.087 R)
• M16: 35,324,695 km (0.091 R)
• M17: 44,245,066 km (0.052 R)
• M18: 46,040,839 km (0.105 R)
• M19: 46,956,677 km (0.069 R)
• M20: 51,065,981 km (0.095 R)
• M21: 53,040,823 km (0.104 R)
• M22: 53,374,875 km (0.114 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 72.7

Radius: 4.3

Gravity: 3.93 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 9.07 AU - 9.91 AU

Year: 20550 Days

Day: 16.1 Hours

Environment

Temp: -230 °C

Axial Tilt: 48.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 36,682,016 km

• M1: 56,997 km (0.114 R)
• M2: 407,505 km (0.117 R)
• M3: 625,768 km (0.104 R)
• M4: 866,172 km (0.084 R)
• M5: 1,467,854 km (0.101 R)
• M6: 2,345,395 km (0.07 R)
• M7: 2,522,968 km (0.117 R)
• M8: 2,885,145 km (0.114 R)
• M9: 3,549,509 km (0.113 R)
• M10: 3,688,934 km (0.094 R)
• M11: 4,604,622 km (0.066 R)
• M12: 5,789,138 km (0.077 R)
• M13: 9,168,853 km (0.112 R)
• M14: 16,196,064 km (0.039 R)
• M15: 17,235,769 km (0.115 R)
• M16: 18,527,397 km (0.076 R)
• M17: 19,303,960 km (0.054 R)
• M18: 24,173,520 km (0.118 R)
• M19: 27,113,268 km (0.092 R)
• M20: 32,764,776 km (0.112 R)
• M21: 35,058,261 km (0.061 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 156 - 18,560 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit