🌌 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: 139.7

Radius: 13.1

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.51 AU - 0.69 AU

Year: 310 Days

Day: 10.6 Hours

Environment

Temp: -149 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 77,489,056 km

• M1: 166,054 km (0.115 R)
• M2: 577,897 km (0.043 R)
• M3: 1,195,137 km (0.051 R)
• M4: 2,035,578 km (0.077 R)
• M5: 2,644,741 km (0.067 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 18.6

Radius: 11.5

Gravity: 0.14 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 0.73 AU - 0.99 AU

Year: 532 Days

Day: 6.3 Hours

Environment

Temp: -177 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 77,489,056 km

• M1: 143,016 km (0.086 R)
• M2: 751,879 km (0.113 R)
• M3: 1,369,120 km (0.049 R)
• M4: 1,981,274 km (0.072 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 354.5

Radius: 14.4

Gravity: 1.71 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 0.8 AU - 0.92 AU

Year: 532 Days

Day: 13.2 Hours

Environment

Temp: -158 °C

Axial Tilt: 2.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 77,489,056 km

• M1: 179,069 km (0.113 R)
• M2: 627,413 km (0.095 R)
• M3: 1,108,371 km (0.049 R)
• M4: 1,706,014 km (0.104 R)
• M5: 2,462,381 km (0.054 R)
• M6: 5,209,147 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 940.5

Radius: 12

Gravity: 6.53 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 0.89 AU - 1.45 AU

Year: 844 Days

Day: 14.6 Hours

Environment

Temp: -185 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 77,489,056 km

• M1: 149,299 km (0.119 R)
• M2: 567,574 km (0.063 R)
• M3: 1,027,438 km (0.108 R)
• M4: 1,404,275 km (0.115 R)
• M5: 1,802,355 km (0.044 R)
• M6: 2,453,255 km (0.115 R)
• M7: 3,269,611 km (0.116 R)
• M8: 3,718,853 km (0.104 R)
• M9: 4,209,235 km (0.106 R)
• M10: 5,129,412 km (0.108 R)
• M11: 5,557,112 km (0.103 R)
• M12: 5,987,655 km (0.099 R)
• M13: 6,506,909 km (0.066 R)
• M14: 7,079,719 km (0.079 R)
• M15: 8,379,276 km (0.1 R)
• M16: 9,282,697 km (0.076 R)
• M17: 9,772,930 km (0.095 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 351.6

Radius: 9.9

Gravity: 3.59 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.96 AU - 1.44 AU

Year: 877 Days

Day: 10.9 Hours

Environment

Temp: -190 °C

Axial Tilt: 14.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 77,489,056 km

• M1: 123,119 km (0.111 R)
• M2: 431,739 km (0.096 R)
• M3: 834,158 km (0.101 R)
• M4: 1,488,349 km (0.041 R)
• M5: 2,383,992 km (0.079 R)
• M6: 2,812,290 km (0.103 R)
• M7: 3,537,690 km (0.057 R)
• M8: 4,476,118 km (0.088 R)
• M9: 4,796,108 km (0.077 R)
• M10: 5,774,478 km (0.117 R)
• M11: 6,135,158 km (0.113 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 669.6

Radius: 13.3

Gravity: 3.79 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 1.26 AU - 1.88 AU

Year: 1312 Days

Day: 11.4 Hours

Environment

Temp: -195 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 77,489,056 km

• M1: 165,455 km (0.102 R)
• M2: 596,896 km (0.111 R)
• M3: 1,128,716 km (0.108 R)
• M4: 1,810,733 km (0.099 R)
• M5: 2,591,185 km (0.12 R)
• M6: 3,166,239 km (0.094 R)
• M7: 3,648,842 km (0.105 R)
• M8: 4,268,177 km (0.09 R)
• M9: 5,015,717 km (0.111 R)
• M10: 5,696,986 km (0.115 R)
• M11: 6,557,024 km (0.049 R)
• M12: 7,658,962 km (0.098 R)
• M13: 8,089,206 km (0.117 R)
• M14: 10,229,054 km (0.082 R)
• M15: 10,952,359 km (0.116 R)
• M16: 11,395,618 km (0.117 R)
• M17: 11,993,261 km (0.079 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 473.7

Radius: 11.6

Gravity: 3.52 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 2.25 AU - 3.31 AU

Year: 3091 Days

Day: 12.5 Hours

Environment

Temp: -216 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 77,489,056 km

• M1: 144,362 km (0.114 R)
• M2: 544,237 km (0.108 R)
• M3: 990,338 km (0.112 R)
• M4: 1,469,799 km (0.075 R)
• M5: 1,839,156 km (0.077 R)
• M6: 2,324,901 km (0.051 R)
• M7: 3,594,837 km (0.042 R)
• M8: 3,955,517 km (0.063 R)
• M9: 4,728,190 km (0.07 R)
• M10: 7,750,067 km (0.055 R)
• M11: 8,290,864 km (0.095 R)
• M12: 9,555,265 km (0.057 R)
• M13: 10,594,521 km (0.116 R)
• M14: 11,544,019 km (0.114 R)
• M15: 14,165,422 km (0.097 R)
• M16: 16,068,307 km (0.086 R)
• M17: 17,001,798 km (0.119 R)
• M18: 17,535,713 km (0.095 R)
• M19: 19,377,711 km (0.089 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 754.8

Radius: 6.7

Gravity: 16.81 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 8.44 AU - 8.84 AU

Year: 16936 Days

Day: 24.2 Hours

Environment

Temp: -234 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 77,489,056 km

• M1: 83,476 km (0.092 R)
• M2: 325,226 km (0.062 R)
• M3: 995,125 km (0.083 R)
• M4: 1,923,978 km (0.111 R)
• M5: 2,279,273 km (0.086 R)
• M6: 2,585,350 km (0.099 R)
• M7: 3,908,244 km (0.103 R)
• M8: 4,681,815 km (0.107 R)
• M9: 5,325,983 km (0.08 R)
• M10: 5,906,423 km (0.09 R)
• M11: 6,316,471 km (0.117 R)
• M12: 8,656,481 km (0.112 R)
• M13: 12,224,540 km (0.08 R)
• M14: 16,747,033 km (0.11 R)
• M15: 18,243,460 km (0.093 R)
• M16: 18,501,217 km (0.112 R)
• M17: 18,936,248 km (0.068 R)
• M18: 41,725,838 km (0.108 R)
• M19: 50,961,113 km (0.106 R)
• M20: 56,778,825 km (0.083 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 881.5

Radius: 4.9

Gravity: 36.71 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 8.36 AU - 10.26 AU

Year: 18943 Days

Day: 22 Hours

Environment

Temp: -227 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 77,489,056 km

• M1: 88,263 km (0.056 R)
• M2: 533,915 km (0.091 R)
• M3: 689,497 km (0.099 R)
• M4: 853,605 km (0.097 R)
• M5: 1,096,104 km (0.112 R)
• M6: 1,414,747 km (0.078 R)
• M7: 1,613,413 km (0.097 R)
• M8: 1,887,925 km (0.069 R)
• M9: 2,129,376 km (0.112 R)
• M10: 3,307,759 km (0.111 R)
• M11: 3,510,015 km (0.07 R)
• M12: 4,683,909 km (0.104 R)
• M13: 5,051,471 km (0.108 R)
• M14: 5,398,688 km (0.118 R)
• M15: 6,717,094 km (0.114 R)
• M16: 6,901,548 km (0.029 R)
• M17: 7,426,337 km (0.104 R)
• M18: 7,623,657 km (0.105 R)
• M19: 11,536,539 km (0.078 R)
• M20: 11,734,756 km (0.084 R)
• M21: 12,411,986 km (0.077 R)
• M22: 13,769,886 km (0.109 R)
• M23: 17,289,026 km (0.109 R)
• M24: 20,099,671 km (0.096 R)
• M25: 21,763,349 km (0.086 R)
• M26: 26,491,090 km (0.076 R)
• M27: 27,301,312 km (0.118 R)
• M28: 27,653,615 km (0.06 R)
• M29: 28,247,369 km (0.091 R)
• M30: 30,707,656 km (0.087 R)
• M31: 33,844,274 km (0.057 R)
• M32: 42,448,396 km (0.047 R)
• M33: 45,010,110 km (0.083 R)
• M34: 47,503,607 km (0.115 R)
• M35: 51,682,324 km (0.055 R)
• M36: 52,582,754 km (0.112 R)
• M37: 55,346,425 km (0.109 R)
• M38: 55,534,170 km (0.106 R)
• M39: 58,594,045 km (0.09 R)
• M40: 62,982,200 km (0.056 R)
• M41: 69,312,134 km (0.101 R)
• M42: 74,900,213 km (0.056 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 557.4

Radius: 5.7

Gravity: 17.16 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 9.71 AU - 11.35 AU

Year: 22786 Days

Day: 20.3 Hours

Environment

Temp: -238 °C

Axial Tilt: 48.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 77,489,056 km

• M1: 115,190 km (0.108 R)
• M2: 680,970 km (0.085 R)
• M3: 940,971 km (0.069 R)
• M4: 1,237,474 km (0.118 R)
• M5: 1,431,652 km (0.105 R)
• M6: 2,513,843 km (0.086 R)
• M7: 3,652,881 km (0.058 R)
• M8: 4,120,973 km (0.111 R)
• M9: 4,951,690 km (0.114 R)
• M10: 8,211,726 km (0.101 R)
• M11: 8,526,181 km (0.081 R)
• M12: 8,957,771 km (0.098 R)
• M13: 11,145,939 km (0.116 R)
• M14: 13,092,357 km (0.029 R)
• M15: 15,411,722 km (0.1 R)
• M16: 15,729,618 km (0.095 R)
• M17: 16,877,033 km (0.075 R)
• M18: 18,521,862 km (0.062 R)
• M19: 20,081,569 km (0.104 R)
• M20: 23,459,788 km (0.117 R)
• M21: 25,614,147 km (0.111 R)
• M22: 28,726,980 km (0.103 R)
• M23: 29,087,660 km (0.088 R)
• M24: 32,471,115 km (0.07 R)
• M25: 37,093,241 km (0.117 R)
• M26: 41,061,923 km (0.096 R)
• M27: 44,018,425 km (0.096 R)
• M28: 44,337,518 km (0.093 R)
• M29: 45,956,915 km (0.052 R)
• M30: 53,733,610 km (0.083 R)
• M31: 70,947,089 km (0.092 R)
• M32: 71,166,250 km (0.11 R)
• M33: 71,826,575 km (0.08 R)
• M34: 74,508,865 km (0.099 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: 179 - 13,647 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit